iron content

iron content, Total:250 items.

The international standard classification for "iron content" includes: food products in general , Acids , Paper and board , Organic chemicals , Meat and meat products , Chemical analysis , Chemical analysis of metals , Iron ores , Chromium ores , Farming and forestry , Rubber , Inorganic chemicals in general , Explosives. Pyrotechnics , Ferrous metals in general , Metalliferous minerals in general , Non-metalliferous minerals , Organic acids , Fertilizers , Surface active agents , Bases , Manganese ores , Ferroalloys , Copper and copper alloys , Organic nitrogen compounds , Salts , Magnesium and magnesium alloys , Rubber compounding ingredients , Coated fabrics , Steels , Metalliferous minerals , Other iron and steel products , Coals , Aluminium and aluminium alloys , Aluminium , Materials for aerospace construction .

The Chinese standard classification for "iron content" includes: Basic standards and general methods , Inorganic acid and alkali , Papermaking in general , General organic chemicals , Meat processing and products , Basic standards and general methods for water treatment agent , Steel and iron alloy analysis method , Iron ore , Chrome ore , Charcoal , Rubber products in general , Inorganic chemicals in general , Artistic handicrafts , Chemical raw material ore , Metallurgical auxiliary material ore , Organic chemicals in general , Chemical fertilizer and chemical soil conditioner , Basic standards and general methods for chemical additive , Manganese ore , Basic standards and general methods on chemical fertilizers , Heavy metals and their alloys analysis method , Inorganic salt , Light metals and their alloys analysis method , Carbon black , Oxide and elementary substance , Lubricating oil , Petroleum coke , Half finished chemical fibre products , Artificial rich ore , Light metal ore , Beneficiation reagent , Light metals and their alloys , Metal casting and forging materials used for aviation and aerospace , Electrician alloy parts , Metal physical property test method .

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

GB/T 5059.7-2014 Ferromolybdenum―The determination of carbon content―Infrared absorption method
GB/T 2441.4-2010 Determination of urea—Part 4:Iron content—1,10-Phenanthroline spectrophotometric method
GB/T 21933.1-2008 Ferronickel - Determination of nickel content - The dimethylglyoxime gravimetric method
GB/T 8943.2-2008 Paper board and pulps—Determination of iron
GB/T 2463.2-1996 Pyrites and concentrate-Determination of total iron content-Part 2: Titanium trichloride-Potassium dichromate volumetric method
GB/T 22596-2008 Water treatment chemicals - General method for determination of iron content
GB/T 4348.3-2002 Sodium hydroxide for industrial use - Determination of iron content - 1,10 - Phenanthroline photometric method
GB/T 5195.10-2006 Fluorspar - Determination of iron content - 1, 10-phenanthroline spectrophotometric method
GB/T 8943.2-1988 Paper,board and pulp--Determination of iron content
GB/T 3049-2006 Chemical products for industrial use - General method for determination of iron content - 1 10-Phenanthroline spectrophotometric method
GB/T 8704.6-2007 Ferrovanadium—Determination of silicon content—The sulphuric acid dehydration gravimetric method
GB/T 4701.2-2009 Ferrotitanium—Determination of silicon content—The sulphuric acid dehydration gravimetric method
GB/T 9695.3-2009 Meat and meat products—Determination of iron content
GB/T 223.70-2008 Iron steel and alloy - Determination of iron contents - O-phenanthroline spectrophotometric method
GB/T 38812.4-2022 Direct reduced iron—Determination of metallic iron—Bromine-methanol titrimetric method
GB/T 12684.6-1990 Boric acid for industrial use--Determination of iron content
GB/T 2463.1-1996 Pyrites and concentrate--Determination of total iron content--Part 1: Cerium sulfate volumetric method
GB/T 1508-2002 Manganese ores - Determination of total iron content - Potassium dichromate titrimetric method and 1,10 - Phenanthroline spectrophotometric method
GB/T 223.7-2002 Iron powder--Determination of iron content--Potassium dichromate titration method
GB/T 9695.3-1988 Meat and meat products-Method for determination of iron
GB/T 21933.3-2008 Ferronickel - Determination of cobalt content - Flame atomic absorption spectrometric method
GB/T 23835.10-2009 Lithium perchlorate anhydrous - Part 10: Determination of iron content
GB/T 13255.7-1991 Caprolactam for industrial use-Determination of iron content
GB/T 11201-2002 - Determination of iron content by atomic absorption spectrometry
GB/T 15057.6-1994 Limestone for chemical industry - Determination of iron content- Phenanthroline spectrophotometric method
GB/T 14849.1-2020 Methods for chemical analysis of silicon metal—Part 1：Determination of iron content
GB/T 20617-2006 Fireworks and firecrackers - Determination of ferrum content in pyrotechnic composition
GB/T 5059.2-2014 Ferromolybdenum―Determination of antimony content―Malachite green spectrophotometric method
GB/T 4348.3-2012 Sodium hydroxide for industrial use - Determination of iron content－1，10－phenanthroline photometric method
GB/T 21933.2-2008 Ferronickel - Determination of silicon content - Gravimetric method
GB/T 4701.6-2008 Ferrotitanium - Determination of aluminum content - EDTA titrimetric method
GB/T 7717.16-2009 Acrylonitrile for industrial use—Part 16:Determination of content of iron—Graphite furnace atomic absorption spectrometer method
GB/T 24225-2009 Chromium ores—Determination of total iron content—Titrimetric method after reduction
GB/T 9984.6-2004 Sodium tripolyphosphate for industrial use--Determination of iron content--2, 2-bipyridyl spectrophotometric method
GB/T 6730.66-2009 Iron ores—Determination of total iron content—Automatic potentiometric titration method
GB/T 13748.9-2005 Chemical analysis methods of magnesium and magnesium alloys — Determination of iron content — Orthopenanthroline spectrophotometric method
GB/T 7717.11-1994 Acrylonitrile for industrial use-Determination of content of iron-Spectrophotometric method
GB/T 1628.7-2000 Fundamental terminology of fixed extinguishing systems
GB/T 2463-2008 Pyrites and concentrate - Determination of total iron content - Cerium sulfate volumetric and potassium dichromate volumetric methods
GB/T 13255.7-2009 Test methods of caprolactam for industrial use - Part 7: Determination of iron content
GB/T 6730.5-2007 Iron ores—Determination of total iron content—Titanium(Ⅲ) chloride reduction methodds
GB/T 5121.9-2008 Methods for chemical analysis of copper and copper alloys - Part 9: Determination of iron content
GB/T 12496.19-1999 Test methods of wooden activated carbon--Determination of iron content
GB/T 12496.19-2015 Test methods of wooden activated carbon―Determination of iron content
GB/T 6730.73-2016 Iron ores―Determination of total iron content―EDTA photometric titration method
GB/T 6730.70-2013 Iron ores - Determination of total iron content - Titrimetric method after tin(Ⅱ) chloride reduction
GB/T 6730.65-2009 Iron ores—Determination of total iron content—Titanium(Ⅲ) chloride reduction potassium dichromate titration methods(routine methods)
GB/T 2441.4-2001 Determination of urea-Determination of iron content-1,10-Phenanthroline spectrophotometric method
GB/T 6730.8-2016 Iron ores一Determination of iron (Ⅱ)content一 Potassium dichromate titrimetric method
GB/T 29651-2013 Manganese ores and concentrates—Determination of total iron content—Flame atomic absorption spectrometric method
GB/T 8704.7-2009 Ferrovanadium—Determination of phosphorus content—The molybdenum blue photometric method
GB/T 11202-2003 Rubber - Determination of iron content - 1,10 - Phenanthroline photometric metho
GB/T 8570.7-1988 Liquefied anhydrous ammonia--Determination of iron content--o-Phenanthroline spectrophotometric method
GB/T 19421.8-2003 Test methods of crystalline layered sodium disilicate--Phenanthroline photometric methods for determination of iron oxide content

Henan Provincial Standard of the People's Republic of China

DB41/T 993-2014 Titration method for determination of magnetic iron content in iron ore

Professional Standard - Chemical Industry

HG/T 2958.7-1988 Celestite ores-Determination of iron content-Sulphosalicylic acid spectrophotometric method
HG/T 3070-2008 rubber compounding ingredients--silica, precipitated, hydrated--determination of total iron content
HG/T 4210-2011 Phosphorus trichloride for industrial use-determination of iron content-spectrophotometric method
HG/T 2956.5-2001 Ascharite ores - Determination of ferrous oxide content - Potassium dichromate volumetric method
HG/T 4327-2012 Reclaimed water—Determination of total iron content—Spectrophotometric method
HG/T 2879.5-1997 Rubber Compounding ingredients--kaolin clay--Determination of total iron content
HG/T 3070-1999 Rubber compounding ingredients. Silica, precipitated, hydrated. Determination of total iron content
HG/T 2956.4-2001 Ascharite ores - Determination of total iron content - Potassium dichromate volumetric method
HG/T 4213-2011 Phosphorus oxychloride for industrial use-Determination of iron content-spectrophotometric method
HG/T 4324-2012 Pickling solution—Determination of total iron content
HG/T 3539-2012 Industrial Circulating Cooling Water - Determination of Iron Content -Spectrometric Method Using 1,10-Phenathroline

Professional Standard - Petrochemical Industry

SH/T 0197-1992 Determination method for iron content in petroleum products
SH/T 1544-1993 Determination of iron content in dimethyl terephthalate
SH/T 0058-1991 Determination method for content of silicon, vanadium and iron in petroleum coke
SH/T 0077-1991 Determination of iron content in lubricating oil (atomic absorption spectrometry method)
SH/T 1499.5-1997 Pure Adipic Acid-Determination of Content of Iron-2, 2’-Bipyridyl Spectrophotometric Method

Professional Standard - Textile

FZ/T 50010.6-1998 Pulp board for viscose fiber—Determination of iron content

Professional Standard - Ferrous Metallurgy

YB/T 4188-2015 Test method for the content of magnetic metallic iron in steel slag
YB/T 4392.2-2014 Sulphat titanium slag. Determination of metallic iron content. Dichromate titrimetric method
YB/T 191.4-2001 Methods for chemical analysis of chromium ores--The potassium dichromate titrimetric method for the determination of total iron content
YB/T 159.2-1999 Methods for chemical analysis of titanium concentrate(rock minerals)—The titanium chloride-potassium dichromate volumetric method for the determination of total iron content
YB/T 159.3-1999 Methods for chemical analysis of titanium concentrate(rock minerals)—The potassium dichromate volumetric method for the determination of ferrous oxide content
YB/T 5330-2009 Vanadium pentoxid - Determination of iron content-The ortho-phenanthroline spectrophotome method
YB/T 148-1998 Standard test method for the content of metallic iron in steel slag used in cement
YB/T 148-2009 Methods for the determination of total iron content in steel slag
YB/T 4316-2012 Aluminum and Iron Content Determination Method of Aluminous Mixture of Iron
YB/T 4302-2012 Determination of Oil and Iron Remainders on Cold Rolled Plate and Strip Surface
YB/T 4199-2009 Vanadium pentoxide - Determination of iron content-The flame atomic absorption spectrometric method
YB/T 148-2015 Test method for the content of total iron in steel slag

Professional Standard - Commodity Inspection

SN/T 1797.2-2008 Technical regulation on safety and sanitation for inspection of iron ore. Part 2:Total iron for quality evaluation
SN/T 0564-1996 Determination of ferric oxide content in titanium dioxide for export - Flame atomic absorption spectrometric method
SN/T 0561-2013 Determination of acid-soluble iron content in import & export natural scale graphite. Atomic absorption spectrometric method
SN/T 0837.3-2011 Method for Chemical Analysis of Arsenic Trioxide for Import and Export - Part 3: Determination of Iron Content
SN/T 0563-1996 Determination of ferric oxide in bauxite for export - Flame atomic absorption spectrometric method
SN/T 0564.1-2013 Titanium dioxide. Part 1: Determination of ferric oxide content. Atomic absorption method
SN/T 2725-2010 Determination of sodium potassium and iron content in coal tar oil and anthracene oil—Atomic absorption spectrometric method
SN/T 0481.9-2010 Methods for inspection of bauxite for export—Part 9:Determination of free iron content—1 10-Phenanthroline spectrophotometric method
SN/T 3100.1-2012 Iron ores-Determination of total iron content-Automatic photometric titration method
SN/T 3113-2012 Ferromolybdenum - Determination of silicon contents -Silicomolybdic blue spectrophotometric method
SN/T 1031.6-2012 Chemical analysis of crude antimony trioxide for export-Part 6:Determination of lead and iron contents
SN/T 3604-2013 Determination of copper,silicon,manganese,zine,aluminum and iron in zinc concentrate ore―X-ray fluorescence spectrometry

Professional Standard - Coal

MT/T 1068-2008 Activated carbon acid digestion methods for determination of iron content standards

Jilin Provincial Standard of the People's Republic of China

DB22/T 2136-2014 Rapid Determination of Total Iron Content in Iron Ore Powder-X-ray Fluorescence Spectrometry

国家市场监督管理总局、中国国家标准化管理委员会

GB/T 38812.1-2020 Direct reduced iron—Determination of iron(Ⅱ) content—The potassium dichromate titrimetric method after decomposition of sample by ferric chloride
GB/T 5687.13-2021 Ferrochromium—Determination of chromium, silicon, manganese, titanium, vanadium, iron contents—Wavelength dispersive X-ray fluorescence spectrometry (fused cast bead method)
GB/T 4333.8-2022 Ferrosilicon—Determination of calcium content—Flame atomic absorption spectrometry
GB/T 8454-2020 Reduced ilmenite powder for welding rob-Determination of ferrous iron content- Potassi um dichromate titrimetric method
GB/T 6730.5-2022 Iron ores—Determination of total iron content—Titrimetric methods after titanium(III) chloride reduction
GB/T 41497-2022 Ferrovanadium—Determination of vanadium,silicon,phosphorus,manganese,aluminum,iron content—Wavelength dispersive X-ray fluorescence spectrometry
GB/T 38812.2-2020 Direct reduced iron—Determination of metallic iron content—The potassium dichromate titrimetric method after decomposition of sample by ferric chloride
GB/T 20975.4-2020 Methods for chemical analysis of aluminium and aluminium alloys—Part 4:Determination of iron content

Professional Standard - Electricity

DL 422.3-1991 Determination for iron content in industrial hydrochloric acid - Phenanthroline spectrophotometric method

Group Standards of the People's Republic of China

T/CSTM 00058-2018 Nickel alloy—Determination of iron content—Flame atomic absorption spectrometric method
T/SDAQI 035-2021 Determination of iron oxide content in bauxite Sulfosalicylic acid spectrophotometric method

Professional Standard - Aviation

HB 5220.30-2008 Methods for Chemical Analysis of Superalloys - Part 30: etermination of Iron Content by Phenanthroline Photometric Method
HB 7266.4-1996 Aluminum-lithium Alloy Chemical Composition Analysis Method - Determination of Iron Content Through Atomic Absorption Spectrometry Method
HB 6731.6-1993 Determination of Iron Content in Aluminum Alloys by Atomic Absorption Spectrometry
HB 5422.9-1989 Chemical Analysis Method for Copper Alloy - 1 and 10 - Phenanthroline Absorption Photometry for the Determination of Iron Content
HB 5220.29-1995 Superalloy Chemical Analysis Method Potassium Dichromate Volumetric Method for Determination of Iron Content
HB 5220.29-2008 Methods for Chemical Analysis of Superalloys - Part 29: Determination of Iron Content by Potassium Dichromate Volumetric Method
HB 5422.8-1989 Chemical Analysis Method for Copper Alloy - Potassium Dichromate Volumetric Method for the Determination of Iron Content
HB 5218.3-1995 Aluminum alloy chemical analysis method, o-phenanthroline photometric method for determination of iron content

Professional Standard - Electron

SJ/T 10171.11-1991 Measurement methods for performances of separator of alkaline batteries-Determination of copper and iron content in separator by atomic absorption sepectrophotomtry

Professional Standard - Aerospace

QJ 1591.2-1989 Composite solid propellant (butylated hydroxyl system) tert-butyl ferrocene content analysis method
QJ 913.6-1985 Composite solid propellant (polyether system) analysis method for ferric oxide content
QJ 1591.1-1989 Composite solid propellant (butylated hydroxyl system) Iron oxide content analysis method

Professional Standard - Agriculture

GB 8570.7-1988 Determination of the content of liquid anhydrous ammonium ferric o-phenanthroline spectrophotometric method

Professional Standard - Machinery

JB/T 4107.6-2014 Chemical Analyse Method for Electrical Contact Materials - Part 6: Determine Iron Content in the Silver-iron
JB/T 4107.6-1999 Chemical analyse method for electrical contact materials Determiation of iron content in the silver-iron

Hebei Provincial Standard of the People's Republic of China

DB13/T 1232-2010 Determination method of iron content in chemical products by flame atomic absorption spectrometry

海关总署

HS/T 51-2016 Determination of aluminum, silicon, calcium, chromium, manganese, iron and copper content in ferrosilicon

Anhui Provincial Standard of the People's Republic of China

DB34/T 2878-2017 Methods for chemical analysis of copper slag tailings Determination of iron content Potassium dichromate titration method

工业和信息化部

YS/T 1341.3-2019 Methods for chemical analysis of crude zinc - Part 3: Determination of iron content - Flame atomic absorption spectrometry
HG/T 5811-2020 Determination of iron content in iron-containing chemical sludge

Professional Standard - Non-ferrous Metal

YS/T 535.4-2009 Chemical analysis methods of sodium fluoride—Part 4:Determination of iron content—1,10-phenanthroline spectrophotometric method
YS/T 807.1-2012 Chemical Analysis Methods of Aluminum Hardeners - Part 1: Determination of Iron Content - Potassium Bichromate Titrimetric Method

South African Bureau of Standard

SANS 5207:2010 Water - Iron content
SANS 5207:2004 Water - Iron content
SANS 382:2007 Standard test methods for iron in water

CZ-CSN

CSN 65 1072-1981 Determination of iron content
CSN 44 1724-1989 Molybdenum concentrates. Determination of iron
CSN 50 0254-1970 Determination of Fe-content in pulp and pápe
CSN 42 0566 Cast.4-1987 Chemical analysis of manganese. Determination of iron content

RO-ASRO

STAS 1706/3-1970 COPPER Determination of iron content
STAS 1776/8-1978 LEAD Determination of iron content
STAS 8791/3-1978 CADMIUM Determination of iron content
STAS 8162/2-1988 ALUMINIUM Iron e ontent determiration
STAS 1818/4-1984 ZINC Iron content dctcrmination
STAS 7843-1967 Zinc. Determination of iron content
STAS 3238/5-1970 ANTIMONIC LKAD Dctcrmination of iron content
STAS 2960/6-1967 brass. Determination of iron content
STAS 9144/4-1986 ZING POWDER Determination of iron content
STAS 6182/10-1989 WINE Iron determination
STAS 7716-1967 Manganese ore. Determination of iron content
STAS 7745-1967 Zinc alloy. Determination of iron content
STAS 12459/5-1986 NICKEL BASE ALLOYS Iron content determination
STAS 3086-1968 drinking water. Determination of iron content
STAS 7742/5-1975 ZINC ALLOYS Determination of iron content
STAS 2825/4-1967 Aluminum copper alloy. Determination of iron content
STAS 2979/6-1967 Tin copper alloy. Determination of iron content
STAS 9218/5-1973 ZLRCONIUM SILICATE Determination of ferric oxide content
STAS SR 13303-5-1996 Chlorous sludge. Determination of iron content

HU-MSZT

MSZ KGST 964-1978 Steel content definition
MSZ KGST 936-1978 Determination of iron content in zinc
MSZ KGST 1519-1979 Determination of iron content in brass
MSZ KGST 942-1978 Concept of Determining Iron Content Aluminum
MSZ 11461-1962 Chemical analysis of iron ore. iron content
MSZ 3612/6.lap-1961 Canned food iron content testing
MSZ KGST 930-1978 Concept of Determining Iron Content Copper
MSZ KGST 917-1978 Concept of Determination of Iron Content Cadmium
MSZ KGST 913-1978 The concept of determining iron content and lead
MSZ 8651/11.lap-1968 Lead chemical testing. Iron content detection
MSZ 8653/3.lap-1968 Nickel chemical testing. Iron content detection
MSZ 8655/2.lap-1968 Zinc chemical testing. Iron content detection
MSZ 12599/5-1971 Comprehensive copper testing. Iron content determination
MSZ 12600/3.lap-1968 Comprehensive testing of aluminum. Iron content determination
MSZ 8652/3-1970 Tin chemical testing. Iron content detection
MSZ 12596/6-1971 Comprehensive testing of brass, determination of iron content
MSZ 260/13-1980 Definition of detecting total iron content in sewage

RU-GOST R

GOST 19251.1-1979 Zinc. Method of iron determination
GOST 20580.8-1980 Lead. Method for the determination of iron
GOST 12072.2-1979 Cadmium. Methods of iron determination
GOST 1367.2-1983 Antimony. Methods for the determination of iron
GOST 22519.1-1977 Thallium. Method for the determination of iron
GOST 13637.4-1993 Gallium. Method for the determination of iron
GOST 13637.4-1977 Gallium. Method for the determination of iron
GOST 16274.6-1977 Bismuth. Method for determination of iron content
GOST 13047.17-2002 Nickel. Cobalt. Methods for determination of iron
GOST 13047.17-1981 Nickel. Method for the determination of magnesium
GOST 25284.6-1982 Zinc alloys. Methods for the determination of iron
GOST 7619.6-1981 Fluorite. Method for the determination of iron content
GOST 19863.5-1991 Titanium alloys. Methods for the determination of iron
GOST 25284.6-1995 Zinc alloys. Methods for determination of iron
GOST 19014.2-1973 Crystal silicon. Methods of iron determination
GOST 1652.3-1977 Copper-zinc alloys. Methods for the determination of iron
GOST 21138.8-1978 Chalk. Method for determination of iron oxide mass fraction
GOST 15027.3-1977 Non-tin bronze. Methods for the determination of iron
GOST 23859.5-1979 Bronze fire-resistance. Methods for the determination of iron
GOST 14657.4-1996 Bauxite. Methods for determination of iron oxide content
GOST 27998-1988 Vegetable feeds. Methods for determination of iron
GOST 25542.2-1993 Alumina. Methods for the determination of iron oxide
GOST 14657.4-1978 Bauxite. Methods for the determination of iron oxide (III)

Korean Agency for Technology and Standards (KATS)

KS D 1749-1988 magnesium - Determination of iron content
KS D 1743-1987 Zinc - Determination of iron content
KS D 1988-1988 SOLDERING - Determination of iron content
KS D 1715-1989 Silver bullion - Determination of iron content
KS D 2501-1987 BERYLLIUM COPPER - Determination of iron content
KS D 2064-1986 Manganin - Determination of iron content
KS D 1733-1987 nickel ingots - Determination of iron content
KS D 1726-1989 tin metal - Determination of iron content
KS D 2527-2003 Method for determination of iron in titanium
KS D 1767-1986 MANGANESE METAL - Determination of iron content
KS D 2553-2010 Tantalum-Method for atomic absorption spectrometric analysis
KS D ISO 714-2002(2022) Zinc－Determination of iron content－Photometric method
KS D 2512-1987 Type metal - Determination of iron content
KS D ISO 714:2002 Zinc－Determination of iron content－Photometric method
KS E 3073-2011(2016) Chromium ores－Method for determination of iron content
KS M 7093-2001 Testing method iron in pulp
KS D ISO 714-2022 Zinc－Determination of iron content－Photometric method
KS D 2016-1987 White metal - Determination of iron content
KS E 3073-2021 Chromium ores－Method for determination of iron content
KS E ISO 621-2012(2017) Manganese ores－Determination of metallic iron content (metallic iron content not exceeding 2 %)－Sulphosalicylic acid photometric method
KS E ISO 621-2022 Manganese ores－Determination of metallic iron content (metallic iron content not exceeding 2 %)－Sulphosalicylic acid photometric method
KS E ISO 621-2012(2022) Manganese ores－Determination of metallic iron content (metallic iron content not exceeding 2 %)－Sulphosalicylic acid photometric method
KS E 3013-2011 METHODS FOR DETERMINATION OF TOTAL IRON CONTENT IN IRON ORES
KS M 1925-2009 Urea for industrial use－Determination of iron content－2,2′-bipyridyl photometric method
KS E 3073-2011(2021) Chromium ores－Method for determination of iron content
KS D 2029-2012 Methods for determination of iron in magnesium and magnesium alloys
KS M 1981-2009 Acetaldehyde for industrial usedetermination of iron content－2,2′-bipyridyl photometric method
KS D 2029-1981 Methods for determination of iron in magnesium and magnesium alloys

PL-PKN

PN P04698-1989 Silk Determination of iron content
PN P22116-1974 Leather Determination of iron con?ent
PN A04015-1959 food. Determination of iron content
PN H04805-06-1991 Zinc powder Determination of iron content
PN H04725-09-1991 Chemical analysis of foundry copper-base alloys Determination of iron content