Determination of Potassium Content in River

Determination of Potassium Content in River, Total:424 items.

The international standard classification for "Determination of Potassium Content in River" includes: Fertilizers , Chemical characteristics of soils , Farming and forestry in general , Ferroalloys , Chemical analysis of metals , Paper and board , Fruits. Vegetables , Iron ores , Manganese ores , Natural gas , Jewellery , Inorganic chemicals in general , Other iron and steel products , Non-metalliferous minerals , Aluminium and aluminium alloys , Ferrous metals in general , Chemical analysis , Carbon materials .

The Chinese standard classification for "Determination of Potassium Content in River" includes: Soil and fertilizer in general , Water and soil conservation , Agriculture and forestry technology , Basic standards and general methods on chemical fertilizers , Steel and iron alloy analysis method , Papermaking in general , Basic standards and general methods , Iron ore , Manganese ore , Natural gas , Artistic handicrafts , Inorganic chemicals in general , Other steel and iron products , Metallurgical auxiliary material ore , Light metals and their alloys , Chemical raw material ore , Basic standards and general methods for water treatment agent , Iron alloy , Glass fibre , Light metals and their alloys analysis method , Heavy metals and their alloys analysis method .

Professional Standard - Agriculture

NY/T 2420-2013 Determination of total potassium in plant - Flame photomery method
NY/T 2273-2012 Soil Amendment - Determination of Phosphorus and Potassium Content
211药典三部-2015 Content determination method 3109 Potassium ion determination method 56
191药典四部-2020 3100 content determination method 3109 potassium ion determination method
230药典三部-2020 Content determination method 3109 Potassium ion determination method
203药典四部-2015 3100 content determination method 3109 potassium ion determination method
NY/T 1977-2010 Water-soluble fertilizers--Determination of total nitrogen,phosphorus and potassium content
NY/T 2540-2014 Fertilizers. Determination of potassium content
NY/T 889-2004 Determination of exchangeable potassium and non-exchangeable potassium content in soil

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

GB/T 12658-1990 Paper,board and pulp-Determination of potassium and sodium content
GB/T 38216.4-2024 Steel slag—Determination of total iron content—Titanium(Ⅲ) chloride-potassium dichromate titration methods
GB/T 223.7-2002 Iron powder--Determination of iron content--Potassium dichromate titration method
GB/T 8574-2010 Determination of potassium content for compound fertilizers - Potassium tetraphenylborate gravimetric method
GB/T 34162-2017 Natural gas--Determination of arsenic content--Potassium permanganate sample method
GB/T 14640-2008 Water used in industrial circulating cooling system and boiler - Determination of potassium and sodium
GB/T 17832-2021 Silver jewellery alloys—Determination of silver—Volumetric (potentiometric) method using potassium bromide
GB/T 10304.2-1988 Determination of BaC03 in cathode carbonate by dichromate iodimetry
GB/T 1507-2006 Manganese Ores - Determination of active oxygen content - Potassium dichromate titrimetric method
GB/T 8574-2002 Determination of potassium content for compound fertilizers--Potassium tetraphenylborate gravimetric method
GB/T 17832-2008 Silver jewellery alloys - Determination of silver - Volumetric (potentionmetric) method using potassium bromide
GB/T 6730.8-2016(英文版) Iron ore-Determination of ferrous iron content-Potassium dichromate titration method
GB/T 6730.8-2016 Iron ores一Determination of iron (Ⅱ)content一 Potassium dichromate titrimetric method
GB/T 17767.3-1999 Determination of total potassium content for organic-inorganic compound fertilizer
GB 8574-1988 Determination of Potassium Content in Compound Fertilizer Gravimetric Method of Potassium Tetraphenylborate
GB/T 8574-2024 Determination of potassium content for compound fertilizers
GB/T 15402-1994 Fruits, vegetables and derived products－Determination of sodium and potassium
GB/T 6730.21-2016 Iron ores―Determination of manganse content―Potassium periodate spectrophotometric method
GB/T 4333.1-2019 Ferrosilicon—Determination of silicon content—Perchloric acid dehydration gravimetric method and potassium fluosilicate volumetric method
GB/T 14640-2017 Determination of potassium and sodium in water for industrial circulating cooling system and boiler
GB/T 22661.3-2008 Chemical analysis methods of potassium fluoborade - Part 3: Determination of potassium fluoborade content - Distillation-sodium hydrogen oxidizes titration volumetric method
GB 4581.7-1984 Alunite ores--Determination of potassium and sodium contents--Potassium tetraphenylborate gravimetric method and flame emission spectrophotometric methods
GB/T 22662.3-2008 Chemical analysis methods of potassium fluotitanate - Part 3: Determination of potassium fluotitanate content - By ammonium iron sulphate dodecahydrate titration volumetric method
GB/T 8296-1987 Natural rubber latex--Determination of manganese content--Potassium periodate photometric method
GB/T 6730.49-2017 Iron ores - Determination of potassium content - Flame atomic absorption spectrometric method
GB/T 5195.5-2017 Fluorspar--Determination of total sulfur content--Pipe furnace combustion iodic acid potassium titration method
GB/T 17832-1999 Determination of silver in silver jewellery alloys--Volumetric（potentiometric）method using potassium bromide
GB/T 223.73-2008 Iron steel and alloy - Determination of iron contents - Titanium trichloride-potassium dichromate titration method
GB/T 14949.7-2024 Manganese ores—Determination of sodium and potassium content—Flame atomic absorption spectrometric method
GB/T 32786-2016 Pig iron contenting nickel―Determination of iron content―Dichromate titration method
GB/T 23835.8-2009 Lithium perchlorate anhydrous - Part 8: Determination of potassium and sodium content

Professional Standard - Commodity Inspection

SN/T 1732.11-2006 Pyrotechnic compositions used for fireworks and firecracker-Part 11:Determination of potassium content
SN/T 5495-2023 Fe-contained dusts -Determination of iron content-Potassium dichromate titration method
SN/T 5692-2024 Determination of Hydrated Water Content in Sodium Sulfide and Potassium Sulfide by Thermogravimetric Analysis
SN/T 1732.11-2014 Pyrotechnic composition used for fireworks and firecracker - Part 11: Determination of potassium content
SN/T 1014.1-2001 Determination of silicon content in ferrosilicon for export - The potassium fluosilicate volumetric analysis
SN/T 3809-2014 Determination of potassium content in potassium chloride and potassium sulphate - Atomic fluorescence spectrometry for X-ray
SN/T 0736.7-2010 Test method for import and export fertilizers—Part 7:Determination of potassium content

Qinghai Provincial Standard of the People's Republic of China

DB63/T 1423-2015 Determination of Potassium Oxide Content in Potassium Nitrate Sodium Tetraphenylborate Quaternary Ammonium Salt Volumetric Method
DB63/T 1318-2014 Determination of Potassium Oxide Content in Potassium Chloride Sodium Tetraphenylborate Quaternary Ammonium Salt Volumetric Method

Group Standards of the People's Republic of China

T/QAS 018-2020 Determination of Potassium Oxide Content in Potassium Chloride Sodium Tetraphenylborate Quaternary Ammonium Salt Volumetric Method
T/HNNMIA 24-2023 Tin oxide slag - Determination of tin content - Potassium iodate titration method
T/QAS 072-2021 Determination of ammonium ion content in potassium chloride Titration method after distillation
T/CSTM 00756-2021 Iron ores—Determination of sodium and potassium contents— Flame atomic emission spectrometric method
T/CMES 08004-2020 Determination of silicon content in silicon alloys Potassium fluorosilicate titration
T/GXAS 474-2023 Determination of chloride content in sugarcane juice—potassium sulfocyanate titrimetric method
T/CAQI 289-2022 Determination of chlorate content in sodium hypochlorite by potassium dichromate titration method

Sichuan Provincial Standard of the People's Republic of China

DB51/T 842-2008 Determination of Humic Acid Content in Fertilizers - Potassium Dichromate

Professional Standard - Ferrous Metallurgy

YB/T 4726.13-2022 Ferric-containing dust and sludge--Determination of potassium and sodiumcontents--Flame atomic absorption spectrophotometric method
YB/T 4710-2018 Steel slag. The determination of iron(II)oxide content. The potassium dichromate titrimetric method
YB/T 4392.2-2014 Sulphat titanium slag. Determination of metallic iron content. Dichromate titrimetric method
YB/T 4726.11-2021 Ferric-containing dust and sludge-Determination of iron (Ⅱ) oxide content-Potassium dichromate titrimetric method
YB/T 159.3-2015 Tiatanium concentrate(rock minerals). Determination of ferrous oxide content. The potassium dichromate titrimetric method
YB/T 4726.7-2021 Ferric-containing dust and sludge——Determination of total iron content——Titanium(Ⅲ)chloridereduction potassium dichromate titration method
YB/T 4709-2018 Steel slag. The determination of manganese oxide content. The potassium periodate(sodium) spectrophotometric method
YB/T 5041-2012 Molybdenum Oxide - Determination of Sulfur Content - Combustion-potassium Iodate Volumetric Method
YB/T 4725-2018 Steel slag. Determination of metallic iron. Ferric trichloride-potassium dichromate titration
YB/T 4726.12-2021 Ferric-containing dust and sludge-Determination of manganese oxide content-The potassium periodate (sodium) spectrophotometric method

Professional Standard - Building Materials

JC/T 2336-2015 Determination of silicon,potassium,sodium,calcium,magnesium and iron content in carbon fiber

Professional Standard - Nuclear Industry

EJ/T 1235-2008 Determination of uranium content in uranium product.Iron(Ⅱ)reduction/potassium dichromate oxidation titrimetric method

Professional Standard - Chemical Industry

HG/T 2957.7-2004 Alunite ores potassium and sodium content. The Potassium Tetraphenylborate gravimetric and flame emission spectrophotometry
HG/T 2956.5-2001 Ascharite ores - Determination of ferrous oxide content - Potassium dichromate volumetric method
HG/T 2956.4-2001 Ascharite ores - Determination of total iron content - Potassium dichromate volumetric method
HG/T 2957.7-1984(1997) Alunite ores-Determination of potassium and sodium contents-Potassium tetraphenylborate gravimetric method and flame emission spectrophotometric methods

Military Standard of the People's Republic of China-General Armament Department

GJB 8682.16-2015 Methods for chemical analysis of pyrotechnic powders Part 16: Determination of potassium chlorate content Potassium dichromate method
GJB 1047.1A-2020 Test methods for black powder Part 1: Determination of potassium nitrate content Weighing method

Military Standard of the People's Republic of China-Commission of Science,Technology and Industry for National Defence

GJB 5381.16-2005 Methods of chemical analysis for pyrotech. Part 16: Determination of potassium chlorate content. Dichromate titration method

Hebei Provincial Standard of the People's Republic of China

DB13/T 6154-2025 Iron Ore - Determination of Magnetic Iron and Total Iron Content - Potassium Dichromate Titration Method
DB13/T 81.15-1992 Determination method of potassium chlorate content in fireworks and firecrackers mixture
DB13/T 81.17-1992 Determination of Potassium Acid in Fireworks and Firecracker Mixtures

Professional Standard - Aviation

HB 5422.5-1989 Chemical Analysis Method for Copper Alloy - Potassium Iodate Volumetric Method for the Determination of Stannum Content
HB 5297.10-2001 Methods for Chemical Analysis of Titanium Alloys - Determination of Tin Content by Potassium Iodate Volumetric Method

Korean Agency for Technology and Standards (KATS)

KS M ISO 5310:2012 Fertilizers－Determination of potassium content－Titrimetric method
KS M ISO 5310-2006(2011) Fertilizers－Determination of potassium content－Titrimetric method
KS M ISO 5310-2012 Fertilizers－Determination of potassium content－Titrimetric method
KS M ISO 5318-2012 Fertilizers－Determination of potassium content－Potassium tetraphenylborate gravimetric method(reference method)
KS M ISO 5318:2007 Fertilizers－Determination of potassium content－Potassium tetraphenylborate gravimetric method(reference method)
KS M ISO 5318-2007 Fertilizers－Determination of potassium content－Potassium tetraphenylborate gravimetric method(reference method)
KS M ISO 5318:2012 Fertilizers－Determination of potassium content－Potassium tetraphenylborate gravimetric method(reference method)
KS D ISO 7528:2012 Nickel alloys-Determination of iron content-Titrimetric method with potassium dichromate
KS D ISO 7528-2018 Nickel alloys－Determination of iron content－Titrimetric method with potassium dichromate
KS M ISO 5317-2006(2011) Fertilizers－Determination of water-soluble potassium content－Preparation of the test solution
KS M ISO 7407-2007(2012) Fertilizers－Determination of acid-soluble potassium content－Preparation of the test solution
KS M ISO 5317:2006 Fertilizers-Determination of water-soluble potassium content-Preparation of the test solution
KS M ISO 5317:2013 Fertilizers－Determination of water-soluble potassium content－Preparation of the test solution
KS D ISO 11427:2006 Determination of silver in silver jewellery alloys－Volumetric (potentiometric) method using potassium bromide
KS E ISO 13312-2022 Iron ores — Determination of potassium content — Flame atomic absorption spectrometric method
KS M ISO 7407:2007 Fertilizers-Determination of acid-soluble potassium content-Preparation of the test solution
KS E ISO 13312:2022 Iron ores — Determination of potassium content — Flame atomic absorption spectrometric method
KS M ISO 7407:2013 Fertilizers－Determination of acid-soluble potassium content－Preparation of the test solution
KS M ISO 7407-2013 Fertilizers－Determination of acid-soluble potassium content－Preparation of the test solution
KS E ISO 13312:2007 Iron ores－Determination of potassium content－Flame atomic absorption spectrometric method
KS M ISO 16995-2025 Solid biofuels — Determination of the water soluble chloride, sodium and potassium content
KS M ISO 1691-2017(2022) Sodium and potassium silicates for industrial use — Determination of carbonates content — Gas-volumetric method

National Standardisation Body (ASRO)

STAS 11592-1983 WATER 40 Potassium content determination
STAS SR 8934-9-1997 Sodium chloride. Determination of potasium iodate content. Volumetric method
STAS 12996-1991 Fodders potassium content determination
STAS 3223/1-1980 ORINKING WATER Potassiiim determination
STAS 6182/30-1974 WINE Determination of potassium
STAS SR 8934-28-1997 Sodium chloride - Determination of potasium iodide content - lodometric method
STAS SR ISO 9389:1995 Nickel alloys. Determination of cobalt.content. Potentiometric titration method with potassium hexacyanoferrate (III)
STAS 8295-1969 Surface water and wastewater. Determination of sodium and potassium content
STAS 12311-1985 Agroalimentary products FLOUR Determination of potassium 40 content
STAS 10115-1984 MILK AND MILK PRODUCTS Determination of 40 potassium content
STAS 9218/10-1973 ZIRGONIUM SILIGATE Determination of sodium oxide and polasiup oxide contents
STAS SR 8934-8-1996 Sodium chloride. Determination of potassium. Flame Photometric Method
STAS SR 13363-1996 Sodium chloride. Determination of potassium. Sodium Tetraphenylborate Volumetric Method
STAS 12703/9-1989 ZIBCONIA Sodium oxide and potassium oxide content determination
STAS 9272/9-1981 ZIRCONIC REFRACTORY PRODUCTS Sodium and potassium oxide conlent determination
STAS 4242/7-1988 BLAST FURNACE SLAG Determination of sodium oxide and potassium oxide
STAS 318/9-1988 SPECIAL GLASS Sodium oxide "and potassium oxide content determination
STAS SR 13241-1995 Liberian fibres — Determination of the noncellulose accompanyng substance content
STAS SR 13364-1996 Sodium chloride. Determination of potassium. Flame Atomic Absorption Spectrometric Method

South African Bureau of Standard

SANS 5563:1968 Determination of copper (plus silver) in copper
SANS 5565:1968 Determination of lead in copper
SANS 5564:1968 Determination of bismuth in copper
SANS 5566:1968 Determination of selenium in copper
SANS 5386:1987 Potassium in solutions, detection
SANS 11427:1993 Determination of silver in silver jewellery alloys - Volumetric (potentiometric) method using potassium bromide
SANS 5063:1975 Potassium chloride content of solutions

Association Francaise de Normalisation

NF U42-111:2013 Potash fertilizers - Determination of potassium content - Flame photometric method
NF T20-376:1969 Chemical analysis of potassium hydroxide. Gravimetric determination of potassium.
NF T20-379:1969 Chemical analysis of potassium hydroxide. Volumetric determination of potassium.
NF EN 15477:2009 Fertilizers - Determination of water-soluble potassium content
NF U42-143*NF EN 15477:2009 Fertilizers - Determination of the water-soluble potassium content.
NF U42-111:1960 Potash fertilizers. Determination of potassium content by flame photometry.
NF T20-356:1978 Potassium chloride for industrial or agricultural use. Determination of potassium content.potassium tetraphenylborate gravimetric method.
NF T20-366:1978 Potassium sulphate for industrial or agricultural use. Determination of potassium content.gravimetric method as potassium tetraphenylborate.
NF V04-209:1989 Milk. Determination of potassium dichromate content. Reference method.
NF T20-372:1969 Chemical analysis of potassium hydroxide. Determination of potassium (flame photometry method).
NF T20-367:1978 Potassium sulphate for industrial or agricultural use. Determination of potassium content.sodium tetraphenylborate volumetric method.
NF T20-359:1978 Potassium chloride for industrial or agricultural use. Determination of potassium content.sodium tetraphenylborate titrimetric method.
NF T90-019:1984 Testing water - Determination of sodium and potassium - Flame emission spectrometry method
NF T90-020:1984 Testing water - Determination of sodium and potassium - Atomic absorption spectrometry method.
NF T20-381:1977 Potassium hydroxide for industrial use. Determination of carbonates content. Gas-volumetric method.
NF T20-365:1978 Potassium sulphate for industrial use. Determination of chloride content.mercurimetric method.
NF T20-354:1978 Potassium chloride for industrial use. Determination of chloride content.mercurimetric method.
NF T20-352:1978 Potassium chloride for industrial or agricultural use. Determination of potassium content.flame emission spectrophotometric method.
NF V04-355:1986 Dried milk. Determination of sodium and potassium contents. Flame emission spectrometric method.
NF T20-378:1977 Potassium hydroxide for industrial use. Determination of carbon dioxide content. Titrimetric method.
NF T20-362:1978 Potassium sulphate for industrial or agricultural use. Determination of potassium content.flame emission spectrophotometric method.
NF EN ISO 16995:2015 Solid biofuels - Determination of water-soluble chlorine, sodium and potassium content
NF T20-528:1980 Sodium and potassium silicates industrial use. Determination of ion content-1,10.
NF T20-374:1977 Potassium hydroxide for industrial use. Determination of chlorides content. Mercurimetric method.
NF T20-382:1977 Potassium hydroxide for industrial use. Determination of sulphate content. Baryum sulphate gravimetric method.
NF T20-364:1978 Potassium sulphate for industrial use. Determination of sulphate content.baryum sulphate gravimetric method.
NF A20-603:1989 Iron ores. Determination of sodium and/or potassium content. Flame atomic absorption spectrometric method.
NF T20-524:1973 Sodium and potassium silicates for industrial use. Determination of carbon dioxide content expressed as sodium or potassium carbonate. Gas-volumetric method.
NF T20-387:1977 Potassium hydroxide for industrial use. Determination of sulphur compounds. Method by reduction and titrimetry.
NF V04-355*NF ISO 8070:2007 Milk and milk products - Determination of calcium, sodium, potassium and magnesium contents - Atomic absorption spectrometric method
NF T20-375:1977 Potassium hydroxide for industrial use. Determination of chlorides content. Photometric method.
NF T20-388:1977 Potassium hydroxide for industrial use. Determination of sodium. Gravimetric method using uranyl acetate and magnesium acetate.

Belgian Standards Institute

NBN T 03-222-1980 Potassium chloride for industrial use - Determination of potassium content - Potassium tetraphenylborate gravimetrie method
NBN T 03-211-1980 Potassium sulphate for ?ndustrial use - Determination of acidity to methyl orange
NBN T 03-223-1980 Potassium chloride for industrial use - Determination of potassium content - Sodium tetraphenylborate titrimetric method
NBN T 03-207-1980 Potassium sulphate for industrial use - Determination of potassium content - Gravimetrie method as potassium tetraphenylborate
NBN T 03-208-1980 Potassium sulphate for industrial use - Determination of potassium content - Sodium tetraphenylborate volumetric method
NBN T 03-224-1980 Potassium chloride for industrial use - Determination of moisture content - Gravimetric method
NBN T 03-240-1980 Sodium and potassium silicates for industrial use - Determination of silica content - Titrimetric method
NBN T 03-235-1980 Sodium and potassium silicates for industrial use - Determination of silica content - Gravimetrie method by insolubilization
NBN T 03-206-1980 Potassium sulphate for industrial use - Determination of potassium content - Flame emission spectrophotometric method
NBN T 03-221-1980 Potassium chloride for industrial use - Determination of potassium content - Flame emission spectrophotometric method
NBN T 03-197-1980 Potassium hydroxide for industrial use - Determination of chlorides content - Photometric method
NBN T 03-196-1980 Potassium hydroxide for industrial use - Determination of carbon dioxide content - Titrimetric method
NBN T 03-210-1980 Potassium sulphate for industrial use - Determination of chlorides content - Mercurimetric method
NBN T 03-209-1980 Potassium sulphate for industrial use - Determination of sulphate content - Barium sulphate gravimetrie method
NBN T 03-242-1980 Sodium and potassium silicates for industrial use - Determination of iron content - 1,10-Phenanthroline photometric method
NBN T 03-190-1980 Potassium hydroxide for industrial use - Determination of iron content - 1,10-Phenanthroline photometric method
NBN T 03-236-1980 Sodium and potassium silicates for industrial use - Determination of carbonates content - Gas-volumetric method
NBN-EN 31427-1994 Determination of silver in silver jewellery alloys - Volumetric (potentiometric) method using potassium bromide (ISO 11427:1993)

International Organization for Standardization (ISO)

ISO 5310:1986 Fertilizers; Determination of potassium content; Titrimetric method
ISO 2051:1976 Potassium chloride for industrial use; Determination of potassium content; Potassium tetraphenylborate gravimetric method
ISO 2485:1973 Potassium sulphate for industrial use; Determination of potassium content; Gravimetric method as potassium tetraphenylborate
ISO 2486:1973 Potassium sulphate for industrial use — Determination of potassium content — Sodium tetraphenylborate volumetric method
ISO 2053:1976 Potassium chloride for industrial use; Determination of moisture content; Gravimetric method
ISO 5318:1983 Fertilizers; Determination of potassium content; Potassium tetraphenylborate gravimetric method (Reference method)
ISO 2052:1976 Potassium chloride for industrial use; Determination of potassium content; Sodium tetraphenylborate titrimetric method
ISO 7528:1989 Nickel alloys; determination of iron content; titrimetric method with potassium dichromate
ISO 2488:1973 Potassium sulphate for industrial use; Determination of chloride content; Mercurimetric method
ISO 2050:1976 Potassium chloride for industrial use; Determination of potassium content; Flame emission spectrophotometric method
ISO 2484:1973 Potassium sulphate for industrial use; Determination of potassium content; Flame emission spectrophotometric method
ISO 17319:2015 Fertilizers and soil conditioners - Determination of water-soluble potassium content - Potassium tetraphenylborate gravimetric method
ISO 8070:1987 Dried milk; Determination of sodium and potassium contents; Flame emission spectrometric method
ISO 992:1975 Potassium hydroxide for industrial use; Determination of chlorides content; Mercurimetric method
ISO 991:1976 Potassium hydroxide for industrial use — Determination of carbonates content — Gas-volumetric method
ISO 4365:2005 Liquid flow in open channels - Sediment in streams and canals - Determination of concentration, particle size distribution and relative density
ISO 2900:1973 Potassium hydroxide for industrial use; Determination of carbon dioxide content; Titrimetric method
ISO 7407:1983 Fertilizers; Determination of acid-soluble potassium content; Preparation of the test solution
ISO 5317:1983 Fertilizers; Determination of water-soluble potassium content; Preparation of the test solution
ISO 4365:1985 Liquid flow in open channels; Sediment in streams and canals; Determination of concentration, particle size distribution and relative density
ISO 13312:1997 Iron ores - Determination of potassium content - Flame atomic absorption spectrometric method
ISO 11427:1993 Determination of silver in silver jewellery alloys; volumetric (potentiometric) method using potassium bromide
ISO 993:1976 Potassium hydroxide for industrial use — Determination of sulphate content — Barium sulphate gravimetric method
ISO 2487:1973 Potassium sulphate for industrial use; Determination of sulphate content; Barium sulphate gravimetric method
ISO 7485 Animal feeding stuffs - Determination of potassium and sodium contents - Methods using flame-emission spectrometry
ISO 9389:1989 Nickel alloys; determination of cobalt content; potentiometric titration method with potassium hexacyanoferrate(III)
ISO 1655:1975 Raw rubber and rubber latex — Determination of manganese content — Potassium periodate photometric method
ISO 11427:2014 Jewellery - Determination of silver in silver jewellery alloys - Volumetric (potentiometric) method using potassium bromide
ISO 13756:1997 Determination of silver in silver jewellery alloys - Volumetric (potentiometric) method using sodium chloride or potassium chloride
ISO 6831:1986 Iron ores; Determination of sodium and/or potassium contents; Flame atomic absorption spectrometric method
ISO 994:1973 Potassium hydroxide for industrial use; Determination of iron content; 1,10- Phenanthroline photometric method
ISO 16995:2015 "Solid biofuels - Determination of the water soluble chloride, sodium and potassium content"
ISO 2124:1972 Sodium and potassium silicates for industrial use; Determination of silica content; Titrimetric method

Polski Komitet Normalizacyjny (PKN)

PN C87006-12-1992 Calcium-magnesiiim fertilizers Determination of potassium
PN C84039-06-1987 Potassium hydroxide technical Determination of potassium hydroxide and potassium carbonate content
PN C84039-10-1988 Potassium hydroxide technical Determination of chlorides content
PN C84039-11-1988 Potassium hydroxide technical Determination of sulphates content
PN C84039-12-1988 Potassium hydroxide technical Determination of chlorates content
PN C84039-09-1988 Potassium hydroxide technical Determination of heavy metals content
PN H04093-1989 Chemical analysis of manganese ores Determination of sodium and potassium contents
PN C04591 ArkusZ01-1974 Water and waste water Tests for potassium Determination of potassium by flame photometric method
PN C84039-07-1987 Potassium hydroxide technical Determination of iron content Photocolorimetric method
PN C84039-08-1987 Potassium hydroxide technical Determination of calcium and magnesium content Complexometric methods

European Committee for Standardization (CEN)

EN 15477:2009 Fertilizers - Determination of the water-soluble potassium content
PREN 15477-2015 Fertilizers - Determination of the water-soluble potassium content
EN ISO 11427:2016 Jewellery - Determination of silver in silver jewellery alloys - Volumetric (potentiometric) method using potassium bromide (ISO 11427:2014)
EN 15105:2011 Solid biofuels - Determination of the water soluble chloride, sodium and potassium content

Magyar Szabványügyi Testület

MSZ 19816-1982 Determination of water content in fat
MSZ KGST 1941-1979 Determination method of potassium content of pesticides
MSZ 15475-1981 Testing for lead and potassium content in fat
MSZ 16050/6.lap-1969 Comprehensive inspection of metal equipment. Potassium content definition
MSZ 16050/9.lap-1969 Comprehensive inspection of metal equipment. Potassium content definition
MSZ 5200/10.lap-1957 Generator testing. Definition of double potassium oxidizable substance content
MSZ 16050/14.lap-1969 Definition of potassium and nickel content for comprehensive testing of metal equipment

Türk Standardları Enstitüsü

TS 2073-1975 POTASSIUM CHLORIDE FOR INDUSTRIAL USE DETERMINATION OF POTASSIUM CONTENT GRAV?METRIC METHOD AS POTASSIUM TETRAPHENYLBORATE
TS 2084-1975 DETERMINATION OF VANADIUM CONTENT ?N ?NAVY SPECIAL? FUEL OILS
TS 2113-1975 POTASSIUM HYDROXIDE FOR INDUSTRIAL USE DETERMINATION OF CHLORIDES CONTENT PHOTOMETRIC METHOD
TS 2188-1976 POTASSIUM HYDROXIDE FOR INDUSTRIAL USE DETERMINATION OF CHLORIDE CONTENT MERCURIMETRIC METHOD
TS 2072-1975 POTASSIUM HYDROXIDE FOR INDUSTRIAL USE DETERMINATION OF CARBON DIOXIDE CONTENT TITRIMETRIC METHOD

British Standards Institution (BSI)

BS 5551-4.3.4:1988 Fertilizers. Chemical analysis. Determination of potassium-Method for determination of potassium content (titrimetric method)
BS EN 15477:2009 Fertilizers - Determination of the water-soluble potassium content
PD CEN/TS 15477:2006 Fertilizers - Determination of the water-soluble potassium content
BS 5551-4.3.3:1984 Fertilizers. Chemical analysis. Determination of potassium-Method for determination of water-soluble potassium content (potassium tetraphenylborate gravimetric method: reference method)
BS 5551-4.3.2:1983 Fertilizers. Chemical analysis. Determination of potassium. Preparation of the test solution for determination of acid-soluble potassium content
PD ISO/TS 19407:2015 BS EN 15477. Fertilizers. Determination of the water-soluble potassium content
15/30317857 DC BS EN 15477. Fertilizers. Determination of the water-soluble potassium content
08/30179307 DC BS EN 15477. Fertilizers. Determination of the water-soluble potassium content
BS 5551-4.3.1:1983 Fertilizers. Chemical analysis. Determination of potassium. Preparation of the test solution for determination of water-soluble potassium content
BS ISO 17319:2015 Fertilizers and soil conditioners. Determination of water-soluble potassium content. Potassium tetraphenylborate gravimetric method
BS DD CEN/TS 15477:2006 Fertilizers - Determination of the water-soluble potassium content
BS 5551 SubSec.4.3.4:1988 Fertilizers. Chemical analysis. Determination of potassium. Method for determination of potassium content (titrimetric method)
BS 5551 SubSec.4.3.3:1984 Fertilizers. Chemical analysis. Determination of potassium. Method for determination of water-soluble potassium content (potassium tetraphenylborate gravimetric method: reference method)
BS ISO 4365:2005 Liquid flow in open channels - Sediment in streams and canals - Determination of concentration, particle size distribution and relative density
BS ISO 13312:1997 Iron ores. Determination of potassium content. Flame atomic absorption spectrometric method
BS ISO 9682-2:2007 Iron ores - Determination of manganese content - Periodate spectrophotometric method
BS ISO 13312:2006 Iron ores - Determination of potassium - Flame atomic absorption spectrometric method
BS ISO 13312:2017 Iron ores. Determination of potassium. Flame atomic absorption spectrometric method
BS DD CEN/TS 15105:2006 Solid biofuels - Methods for determination of the water soluble content of chloride, sodium and potassium
BS DD CEN/TS 15105:2005 Solid biofuels — Methods for determination of the water soluble content of chloride, sodium and potassium
BS EN 31427:1994 Determination of silver in silver jewellery alloys - Volumetric (potentiometric) method using potassium bromide
BS 5551 SubSec.4.3.2:1983 Fertilizers. Chemical analysis. Determination of potassium. Preparation of the test solution for determination of acid-soluble potassium content
BS EN 15105:2011 Solid biofuels. Determination of the water soluble chloride, sodium and potassium content
BS EN ISO 16995:2015 Solid biofuels. Determination of the water soluble chloride, sodium and potassium content

German Institute for Standardization

DIN EN 15477:2009 Fertilizers - Determination of the water-soluble potassium content; English version of DIN EN 15477:2009-04
DIN EN 15477:2009-04 Fertilizers - Determination of the water-soluble potassium content; German version EN 15477:2009 / Note: To be replaced by DIN EN 15477 (2015-03).
DIN ISO 9964-3:1996 Water quality - Determination of sodium and potassium - Part 3: Determination of sodium and potassium by flame emission spectrometry (ISO 9964-3:1993)
DIN EN 15477 E:2015-03 Fertilizers - Determination of the water-soluble potassium content
DIN EN ISO 16995 E:2013-03 Determination of chloride, sodium and potassium water content in solid biofuels (draft)
DIN EN 15105:2011-04 Solid biofuels - Determination of the water soluble chloride, sodium and potassium content
DIN EN ISO 16995:2015-05 Solid biofuels - Determination of the water soluble chloride, sodium and potassium content (ISO 16995:2015); German version EN ISO 16995:2015

Gosstandart of Russia

GOST 26880.2-1986 Lead. Methods of sodium and potassium determination
GOST EN 15477-2013 Fertilizers. Determination of the water-soluble potassium content
GOST 20851.3-1993 Mineral fertilizers. Methods for determination of pottassium content
GOST R 50242-1992 Mineral fertilizers. Methods for determination of pottassium content
GOST 2082.9-1981 Molibdenum concentrates. Method for determination of sodium and potassium contents
GOST 20851.3-1975 Mineral fertilizers. Methods for determination of potassium content
GOST 8061-1972 Black powders. Methods for determination of potassium nitrate content determination methods
GOST 851.8-1993 Primary magnesium. Spectral method for determination of sodium and potassium
GOST 851.8-1987 Primary magnesium. Method for the determination of sodium and potassium
GOST R 55112-2012 Solid biofuels. Determination of the water soluble chloride, sodium and potassium content
GOST 26261-1984 Soils. Methods for determining total phosphorus and total potassium
GOST 14839.7-1969 Industrial explosives. Method for determination of sodium (potassium) nitrate content
GOST 22974.10-1985 Melted welding fluxes. Methods of sodium and potassium oxides determination
GOST 22974.10-1996 Melted welding fluxes. Methods of sodium and potassium oxides determination
GOST 11739.8-1990 Aluminium casting and wrought alloys. Method for determination of potassium
GOST 19609.5-1989 Concentrated kaolin. Method for determination of potassium and sodium oxides
GOST 23409.1-1978 Moulding sands, moulding and core sand mixtures. Method for determination of calcium and magnesium oxides content
GOST 27894.6-1988 Peat and products of its processing for agriculture. Method for determination of mobile forms of potassium

Czech Standards Institute (UNMZ)

CSN 65 2101-1985 Potassium hydroxide technical. Determination of potassium hydroxide content. Total alkalinity and potassium carbonate content. Titrimetrical method
CSN 65 4816 Z1-1995 Minerál Fertilizers. Methods of Determination of Potassium Content
CSN 65 2471-1981 Sodium Chloride (Salt) Methods of Potasium Jodide Content Determination
CSN 68 4150-1987 Detennination of content of substances cducing potassium permenganate
CSN 65 4816-1982 Minoral Frrtih/ci^. Mothods o( IJotoriiiinutioii of Potassium Contont
CSN 46 7092-14-1998 Testing methods for feeding stuffs - Part 14: Determination of potassium content
CSN 65 2102-1985 Potassium hydroxide technical Photocolorimetric method for determination of iron content
CSN ISO 7528:1994 Nickel alloys. Determination of iron content. Titrimetric method with potassium dichromate
CSN 65 2467-1981 Sodíum Chloride (Salt) Method of Potassium Content Determination by Atomic
CSN 65 2481-1981 Sodium Chloride (Salt) Methods of Potassium Ferricyanide Content Determination
CSN 65 2104-1986 Potassium hydroxide for industrial use. Determination of chloride content. Nephelometric method
CSN 65 2105-1986 Potassium hydroxide for industrial use. Determination of sulphate content. Nephelometric method
CSN ISO 9389:1994 Nickel alloys. Determination of cobalt content. Potentiometric titration method with potassium hexacyanoferrate (III)
CSN 65 2103-1985 Potassium hydroxide technical Complexometric deterraination of the sum of calcium and magnesium contents
CSN 65 2106-1986 Potassium hydroxide for industrial use. Determination of heavy metals content. Hydrogen sulphide method

Ente Nazionale Italiano di Unificazione

UNI CEN/TS 15477:2006 Fertilizers - Determination of the water-soluble potassium content
UNI EN 15477:2009 Fertilizers - Determination of the water-soluble potassium content
UNI 6284:1968 Mineral fiber insulation. Determination of potassium. Gravimetric method
UNI ISO 8070:1991 Dried milk. Determination of sodium and potassium contents. Flame emission spectrometric method.
UNI EN ISO 16995:2015 Solid biofuels - Determination of the water soluble chloride, sodium and potassium content

Swedish Institute for Standards

SS-EN 15477:2009 Fertilizers - Determination of the water-soluble potassium content
SS-EN 15105:2011 Solid biofuels - Determination of the water soluble chloride, sodium and potassium content
SS-ISO 1691:1993 Sodium and potassium silicates for industrial use- Determination of carbonates content - Gas-volumetric method

Standards Norway

SN-CEN/TS 15477:2006 Fertilizers — Determination of the water-soluble potassium content
NS-EN 15477:2009 Fertilizers — Determination of the water-soluble potassium content
NS-EN 15105:2011 Solid biofuels — Determination of the water soluble chloride, sodium and potassium content

Spanish Association for Standardization (UNE)

UNE-CEN/TS 15477:2007 EX Fertilizers - Determination of the water-soluble potassium content
UNE-EN 15477:2009 Fertilizers - Determination of the water-soluble potassium content
UNE 34208:1981 SODIUM CHLORIDE. DETERMINATION OF POTASIUM CONTENT. TITRIMETRIC METHOD WITH SODIUM.
UNE 103204:1993 ORGANIC MATTER CONTENT OF A SOIL BY THE POTASSIUM PERMANGANATE METHOD.
UNE 103204:1993 ERRATUM ORGANIC MATTER CONTENT OF A SOIL BY THE POTASSIUM PERMANGANATE METHOD.
UNE 103204:2019 Organic matter content of a soil by the potassium permanganate method.

Lithuanian Standards Office

LST EN 15477-2009 Fertilizers - Determination of the water-soluble potassium content
LST ISO 7407:2005 Fertilizers. Determination of acid-soluble potassium content. Preparation of test solution (idt ISO 7407:1983)
LST ISO 5317:2005 Fertilizers. Determination of water-soluble potassium content. Preparation of test solution (idt ISO 5317:1983)
LST EN 15105-2011 Solid biofuels - Determination of the water soluble chloride, sodium and potassium content

Danish Standards Foundation

DANSK DS/EN 15477:2009 Fertilizers - Determination of the water-soluble potassium content
DS/EN 15477:2009 Fertilizers - Determination of the water-soluble potassium content
DS/ISO 7485:2001 Animal feeding stuffs - Determination of potassium and sodium contents - Methods using flame-emission spectrometry
DANSK DS/ISO 7485:2000 Animal feeding stuffs - Determination of potassium and sodium contents - Methods using flame-emission spectrometry
DANSK DS/EN ISO 16995:2015 Solid biofuels - Determination of the water soluble chloride, sodium and potassium content
DS/EN 15105:2011 Solid biofuels - Determination of the water soluble chloride, sodium and potassium content

Netherlands Institute for Standardization

NEN 6442-1979 Water - Flame photometric determination of sodium and potassium content
NEN 2741-1982 Fruit juices - Determination of potassium content - Flame photometric method
NEN 2841-1982 Fruit juices - Determination of potassium content - Flame photometric method
NEN 5920-1988 Aggregates for concrete - Determination of content of fulvo acid
NEN 6424-1988 Water - Determination of potassium content by atomic absorption spectrometry (flame technique)
NEN 3787-1988 Quarg (fresh cheese) Determination of sodium and potassium content
NEN 6399-1992 Fruit lemonades - Determination of potassium content - Flame photometric method

Japanese Industrial Standards Committee (JISC)

JIS K 0400-49-20:1998 Water quality -- Determination of sodium and potassium -- Part 2: Determination of potassium by atomic absorption spectrometry
JIS M 8208:1995 Iron ores -- Method for determination of potassium content
JIS K 0400-48-10:1998 Water quality -- Determination of sodium and potassium -- Part 3: Determination of sodium and potassium by flame emission spectrometry
JIS K 0400-48-20:1998 Water quality -- Determination of sodium and potassium -- Part 1: Determination of sodium by atomic absorption spectrometry

Yugoslav Association for Standardization

JUS H.G8.428-1990 Reagents. Potassium iodide. Determination of potassium iodide content. Volumetric method
JUS H.G8.098-1984 Reagents. Potassium chloride. Determination of potassium chloride content. Volumetric method
JUS H.G8.452-1991 Reagents. Potassium sulpbate. Determination of potassium sulphate content. Volumetric method
JUS H.G8.485-1991 Reagents. Potassium perraangar.ate. Determination of potassium permanganate content. Volumetric method
JUS H.P8.034-1992 Potassium metabisulphite,as pesticide - Determination of potassium sulphate content - Gravimetric method
JUS H.G8.439-1990 Pure chemicals Potassium iodide DETERMINATION OF BARIUM CONTENT Turbidimetric method
JUS H.G8.108-1984 Reagents. Potassium chloride. Determination of barium content. Turbidimetric rnethod
JUS H.G8.455-1991 Reagents. Potassium sulphate. Determination od chloride content. Turbidim&tric metbod
JUS H.G8.104-1984 Reagents. Potassium chloride. Determination of total nitrogen content. Colorimetric method
JUS H.G8.176-1983 Reagents. Potassium dicyanoaurate (I). Determination of gold content. Gravimetric method
JUS H.G8.515-1991 Reagents. Potassium hydroxide. Determination of aluminium content. Colorimetric method
JUS H.G8.509-1991 Reagents. Potassium hydroxide. Determination of potassium hydroxide and carbonate contents. Volumetric method
JUS H.G8.107-1984 Reagents. Potassium chloride. Determination of aluminium content. Colorimetric method
JUS H.G8.436-1990 Reagents. Potassium iodide. Determination of iron content. Colorimetric method
JUS H.G8.106-1984 Reagents. Potassium chloride. Determination of iron content. Colorimetric method
JUS H.G8.514-1991 Reagents. Potassium hydroxide. Determination of total nitrogen content. Colorimetric method
JUS H.G8.489-1991 Reagents. Potassium permanganate. Determination of total nitrogen content. Colorimetric method
JUS H.G8.435-1990 Reaqents. Potassium iodide. Determination of total nitroaen content. Colorimetric method
JUS H.G8.432-1990 Reaaents. Potassium iodide. Determination of sulphate content. Turbidinetric method
JUS H.G8.453-1991 Pure chemicals Potassium sulfate DETERMINATION OF THE CONTENT OF MATTER INSOLUBLE IN WATER Gravimetric method
JUS H.G8.510-1991 Reagents. Potassium hydroxide. Determination of chlorides content. Turbidimetric method
JUS H.G8.487-1991 Reagents. Potassium permanganate. Determination of chlorides content. Turbidimetric raethod
JUS H.G8.512-1991 Reagents. Potassium hydroxide. Determination of silicate content. Colorimetric method
JUS H.G8.457-1991 Pure chemicals Potassium sulfate DETERMINATION OF TOTAL NITROGEN CONTENT Colorimetric method
JUS H.G8.099-1984 Reagents. Potassium chloride. Determ inat ion ofsubstances insoluble in water. Gravimetric method
JUS H.P8.034-1984 Testing of pesticides. Potassium metabisulphite, technical. Determination of K2SO^ content
JUS H.G8.488-1991 Reagents. Potassium permanganate. Determination of sulphates content. Turbidimetric method
JUS H.G8.511-1991 Reagents. Potassium hydroxide. Determination of phosphates content. Colorimetric method
JUS H.G8.178-1983 Reagents. Potassium dicyanoaurate (I). Determination of lead content. Turbidimetric method
JUS H.G8.513-1991 Reagents. Potassium hydroxide. Determination of sulphates content. Turbidimetric method
JUS H.G8.179-1983 Reagents. Potassium dicyanoaurate (I). Determination of copper content. Potentiometric method
JUS H.G8.486-1991 Pure chemicals Potassium permanganate DETERMINATION OF THE CONTENT OF MATTER INSOLUBLE IN WATER Gravimetric method
JUS H.G8.429-1990 Reagents. Potassium iodide. Determination of substances insoluble in water. Gravimetric method
JUS H.P8.033-1984 Test of pesticides POTASSIUM-METABISULPHITE, TECHNICAL (GRAPE) Determination of SO2 content
JUS H.Z1.117-1987 Testing of industrial vvaters. Determination content vfsodium and potasium. Flame photometric me- thod
JUS H.Z1.171-1983 Testing of industrial vvaters. Determination of iron content. Spectrophotometric method with potassium rodanide
JUS H.G8.103-1984 Reagents. Potassium chloride. Determination of phosphate content. Spectrophotometric method
JUS H.G8.456-1991 Pure chemicals Potassium sulfate DETERMINATION OF PHOSPHATE CONTENT Spectrophotometric method
JUS H.G8.182-1983 Reagents. Potassium dicyanoaurate II). Determination of substances insoluble in water. Gravimetric me- thod
JUS H.G8.105-1984 Reagents. Potassium chloride. Determination of heavy metals content (asPb). Colorimetric method
JUS H.G8.434-1990 Reaqents. Potassiuia iodide. Detenaination of phospha.te content. Spectrophotometric method
JUS H.Z1.173-1985 Testing of industrial vvaters. Determination of molybdonum content. Spectrophotometric method with potassium thiocyanate
JUS H.G8.306-1987 Reagents. Potassium dicyanoargentate. Determination of substances insoluble in vvater. Gravimetric method
JUS H.G8.490-1991 Pure chemicals Potassium permanganate DETERMINATION OF LEAD, COPPER AND IRON CONTENT Atomic absorption method
JUS H.G8.458-1991 Reagents. Potassium sulphate. Determination of beavy metals content (as Ph). Colorimetric method
JUS H.G8.461-1991 Reagents. Potassium sulpbate. Determinatlon of sodium conteat. Fleaae emlssiem spectrophotometric metbod
JUS H.G8.352-1989 Reaaents. Acetone. De termina ti. on of permaneanate-reducing substances content. Volumetric inethod
JUS H.G8.438-1990 Reaqents. Potassium iodide. Determination of sodium content. Flame emission spectrophotometric methcd
JUS H.G8.110-1984 Reagents. Potassium chloride. Determination of sodium content. Flame emission spectrophotometric method
JUS H.G8.305-1987 Reagents. Silver cyanide. Determination of substances insoluble in potassium cyanide solution. Gravimetric method
JUS H.G8.460-1991 Pure chemicals Potassium sulfate DETERMINATION OF CALCIUM AND MAGNESIUM CONTENT Atomic absorption method
JUS H.G8.101-1984 Reagents. Potassium chloride. Determination of iodide and bromide contents. Colorimetric method
JUS H.G8.109-1984 Reagents. Potassium chhride. Determination of calcium and magnesium contents. Flame atomic absorption method
JUS H.G8.361-1988 Pure chemicals Zinc chloride DETERMINATION OF SODIUM AND POTASSIUM CONTENT Atomic absorption method

Portuguese Institute of Quality

NP 1376-1976 Potassium sulfate used in industry. Measurement of potassium content by volumetric method
NP 1238-1976 Potassium hydroxide used in industry. Measurement of carbonate content

COMMISSION FOR THE STANDARDS, METROLOGY AND QUALITY OF VIETNAM (STAMEQ)

TCVN 7255-2003 Tobacco and tobacco products.Determination of total potassium content
TCVN 5384-1991 Crude oil.Determination of sodium and potassium content by atomic absorption spectrophotometry
TCVN 6269-2008 Milk and milk products.Determination of calcium, sodium, potassium and magnesium contents.Atomic absorption spectrometric method

Kingdom of Bahrain Testing and Metrology Directorate

BH GSO ISO 7528:2016 Nickel alloys -- Determination of iron content -- Titrimetric method with potassium dichromate
BH GSO ISO 7485:2016 Animal feeding stuffs -- Determination of potassium and sodium contents -- Methods using flame-emission spectrometry
BH GSO ISO 1691:2017 Sodium and potassium silicates for industrial use -- Determination of carbonates content -- Gas-volumetric method

GCC Standardization Organization

GSO ISO 7528:2013 Nickel alloys -- Determination of iron content -- Titrimetric method with potassium dichromate
GSO ISO 17319:2017 Fertilizers and soil conditioners -- Determination of water-soluble potassium content -- Potassium tetraphenylborate gravimetric method
BH GSO ISO 7407:2024 Fertilizers - Determination of acid-soluble potassium content - Preparation of the test solution
GSO ISO 7407:2009 Fertilizers - Determination of acid-soluble potassium content - Preparation of the test solution
GSO ISO 5317:2009 Fertilizers - Determination of water-soluble potassium content - Preparation of the test solution
BH GSO ISO 5317:2024 Fertilizers - Determination of water-soluble potassium content - Preparation of the test solution
GSO ISO 7485:2015 Animal feeding stuffs -- Determination of potassium and sodium contents -- Methods using flame-emission spectrometry
GSO 786:1997 METHODS OF TEST FOR INFANT FOODS BASED ON MILK - DETERMINATION OF POTASSIUM, PHOSPHORUS AND MANGANESE
GSO ISO 16995:2016 Solid biofuels -- Determination of the water soluble chloride, sodium and potassium content

The Directorate General of Specifications and Metrology (DGSM)

OS GSO ISO 17319:2017 Fertilizers and soil conditioners -- Determination of water-soluble potassium content -- Potassium tetraphenylborate gravimetric method
OS GSO ISO 7407:2009 Fertilizers - Determination of acid-soluble potassium content - Preparation of the test solution
OS GSO ISO 5317:2009 Fertilizers - Determination of water-soluble potassium content - Preparation of the test solution
OS GSO ISO 16995:2016 Solid biofuels -- Determination of the water soluble chloride, sodium and potassium content
OS GSO ISO 1691:2016 Sodium and potassium silicates for industrial use -- Determination of carbonates content -- Gas-volumetric method

Standards Institution of Israel

S.I.249 Pt.216-1964 TESTING OF WATER :DETERMINATION OF SODIUM AND OR PO-TASSIUM CONTENT

Bureau of Indian Standards

IS 12760-1989 Determination of sodium and potassium content in milk powder by flame emission spectrometry
IS 18521-2023 Animal Feeding Stuffs - Determination of Potassium and Sodium Contents - Methods Using Flame-Emission Spectrometry
IS 17834-2022 Solid biofuels Determination of the water soluble chloride sodium and potassium content

Indonesia Standards

SNI 03-4152-1996 Test methods for potassium in light sediment by hydrogen chloride using atomic absorption spectrophotometer apparatus

Canadian Standards Association (CSA)

CSA ISO 16995-2015(R2020) Solid biofuels — Determination of the water soluble chloride, sodium and potassium content

American Society for Testing and Materials (ASTM)

ASTM B712-93(1999) Standard Guide for Determination of Sodium and Potassium Content For Silver-Cadmium Oxide Contact Materials

Thai Industrial Standards Institute (TISI)

TIS 1925-1999 Sodium and potassium silicates for industrial use.determination of silica content.gravimetric method by insolubujzation

Others: Determination of Manganese Content Potassium Periodate,Potassium sulphate for industrial use, determination of potassium content - flame emission spectrophotometric method,Determination method of potassium content,Method for Determination of Potassium Content,Determination of Potassium and Sodium Content by Atomic Absorption Spectrometry,Determination method of nitrogen content in potassium nitrate,Determination of Potassium and Sodium in Water by Flame Atomic Absorption Spectrometry,Determination of potassium and sodium content in water,Determination of Potassium and Sodium in Water by Flame Atomic Absorption,Determination of Potassium Content in River