Pigment ion

Pigment ion, Total:186 items.

The international standard classification for "Pigment ion" includes: Electronic components in general , Other standards related to optics and optical measurements , Testing of metals , Alcohols. Ethers , Surface active agents , Chemical reagents , Rubber , Geology. Meteorology. Hydrology , Chemical analysis , Fertilizers , Products of the chemical industry in general , Farming and forestry , Animal feeding stuffs , Lead, zinc, tin and their alloys , Tobacco, tobacco products and related equipment , Power stations in general , Water quality , Protection against crime , Implants for surgery, prosthetics and orthotics .

The Chinese standard classification for "Pigment ion" includes: Electronic element in general , chromatograph , Semimetal and semiconductor material analysis method , Analysis methods for toxic substances in water , Chemical additive , Meteorology , Hygiene, safety and labor protection , Basic standards and general methods on chemical fertilizers , Special electronic technology material , Basic standards and general methods for dye , Animal husbandry in general , Material Protection , Basic standards and general methods for water treatment agent , Livestock and poultry feed and additive , Industrial gas and chemical gas , Basic organic chemicals , Heavy metals and their alloys analysis method , Tobacco , Tobacco curing in general , Electric power testing technique , Hydrogeological survey , Crime judging technology , Orthopedic devices , Surface active agent , Petroleum products in general .

国家市场监督管理总局、中国国家标准化管理委员会

GB/T 36240-2018 Ion chromatographs
GB/T 40395-2021 Determination of ammonium in methanol for industrial use—Ion chromatography
GB/T 37861-2019 Determination of halogen in electrical and electronic products—Ion chromatography method
GB/T 37385-2019 Test method for chloride content of silicon—Ion chromatography method

Professional Standard - Environmental Protection

HJ 1005-2018 Ambient air - Determination of cations（Na+, NH4+, K+,Mg2+, Ca2+）in precipitation - Ion chromatography
HJ/T 84-2001 Water quality -- Determination of inorangic anions -- Ion chromatography method
HJ 669-2013 Water quality-Determination of phosphate-Ion chromatography
HJ 84-2016 Water Quality-Determination of Inorganic Anions（F-、Cl-、NO2-、Br-、NO3-、PO43-、SO32-、SO42-）-Ion Chromatography
HJ 778-2015 Water quality - Determination of iodide - Ion chromatiography
HJ/T 83-2001 Water quality -- Determination of adsorbable organic halogen -- Ion chromatography method
HJ 812-2016 Water Quality - Determination of Water Soluble Cations（Li+ 、Na+、NH4+、K+、Ca2+、Mg2+） - Ion Chromatography

中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会

GB/T 35925-2018 Determination of impurity fluorine ion in water soluble chemicals—Ion chromatography method
GB/T 35664-2017 Determination of ammonium in the wet precipitation--Ion chromatography
GB/T 35665-2017 Determination of formate and acetate in the wet precipitation―Ion chromatography
GB/T 34672-2017 Chemical reagent-General rules for the ion chromatography
GB/T 35928-2018 Poly anioniccellulose
GB/T 34692-2017 Thermoplastic elastomer-Determination of halogen-Oxygen bomb combustion-ion chromatography

Group Standards of the People's Republic of China

T/CNIA 0105-2021 Determination of Oxalate Ion Content in Alumina Production Process by Ion Chromatography
T/CAIA YQ006-2018 Performance testing method of Ion chromatography
T/CNIA 0119-2021 Determination of trace anions in high-purity nitric acid for the electronics industry by ion chromatography
T/WSJD 18.3-2021 Ion Chromatography and Ion Selective Electrode Method for Determination of Hydrogen Bromide by Chemical Factors in Air of Workplace
T/CECS 10206-2022 Determination of Chloride Ion and Sulfate Ion in Concrete by Ion Chromatography
T/SCS 000013-2021 Determination of Inorganic Anions(F-、Cl-、Br-、I-) in boron carbide – silicon carbide pellets By Ion Chromatography
T/CAS 318-2018 Halogen content detection for polymers of wire and cable- Oxygen bomb-ion chromatography
T/WSJD 18.7-2021 Determination of Formic Acid, Acetic Acid, Acrylic Acid and Chloroacetic Acid by Ion Chromatography for Chemical Factors in Workplace Air
T/FSI 138-2024 Determination of chloride ions in siloxane oligomers—ion chromatography
T/NAIA 099-2021 Determination of Inorganic Anion and Cation Content in Facility Soil by Ion Chromatography
T/CIEP 0021-2020 Non-ionic cellulose ether by-product industrial sodium chloride
T/CNIA 0117-2021 Determination of trace anion content in high-purity hydrofluoric acid for electronics industry Ion chromatography
T/CEAC 034-2024 Determination of chemical factors in workplace air - Ion chromatography of sulfur dioxide
T/WSJD 18.4-2021 Ion Chromatography for Determination of Ammonium Sulfamate in Chemical Factors in Workplace Air
T/WSJD 18.1-2021 Ion Chromatography for the Determination of Sodium Hydroxide, Sodium Carbonate and Potassium Hydroxide in Chemical Factors in the Air of the Workplace
T/DLQYLHH 006-2019 Anion exchange column for liquid chromatography
T/ZLJYXH 4-2023 Determination of 8 inorganic anions in diesel vehicle exhaust treatment fluid by ion chromatography
T/CADBM 79-2024 Green and environmentally friendly negative ion interior wall paint
T/NAIA 0169-2022 Water Quality Determination of Ammonia Nitrogen by Ion Chromatography
T/SXQCA 001-2023 Water quality-Determination of water soluble cations（Sr2+、Ba2+） -Ion chromatography

Professional Standard - Commodity Inspection

SN/T 3019.2-2013 Determination of halogen in electrical and electronic products - Part 2: Oxygen bomb combustion-Ion chromatography
SN/T 3019.1-2011 Determination of Halogen in Electrical and Electronic Products. Part 1: Oxygen Bomb Combustion-Ion Chromatography
SN/T 4310-2015 Determination of chloride,nitrate and sulphate in phosphoric acid for import and export - Ion chromatography
SN/T 3911-2014 Determination of water soluble fluorine in building sands - Ion chromatography
SN/T 5032-2017 Determination of chloride ions in petroleum products. Ion chromatography
SN/T 3185-2012 Determination of halogen in crude oil-Oxygen bomb combustion-ion chromatography

Professional Standard - Agriculture

NY/T 1819-2009 Determination of choline in feeds Ion chromatography
JJG(教委) 020-1996 Verification Regulations for Ion Chromatography
83药典四部-2015 0513 Ion chromatography
SN/T 5051-2018 Determination of fluorinion, chloridion, sulfate ion and nitrate ion in water soluble phosphate - Ion chromatography
790兽药典一部-2015 Appendix Contents 0500 Chromatography 0513 Ion Chromatography
T/NAASS 042-2022 Determination of chloride ion content in raw milk by ion chromatography
SN/T 5056-2018 Determination of fluoride ion, nitrite ion, nitrate ion, phosphate ion and sulfate ion in sodium chloride by ion chromatography
783兽药典二部-2015 Appendix Contents 0500 Chromatography 0513 Ion Chromatography
1769药典一部-2010 Appendix VI G Ion Chromatography
SN/T 5052-2018 Determination of fluorinion, chloridion, sulfate ion and nitrate ion in water soluble carbonate - Ion chromatography
184药典三部-2015 Chromatography 0513 General Principles of Ion Chromatography 25
HJ 1288-2023 Water quality-Determination of acrylic acid-Ion chromatography
161药典三部-2010 Appendix III Chromatography IIIE Ion Chromatography
HJ 1288-2023 Water quality-Determination of acrylic acid-Ion chromatography
203药典三部-2020 Chromatography 0513 Ion Chromatography
64药典四部-2020 0513 Ion chromatography
2311药典二部-2010 Appendix V J Ion Chromatography
NY/T 2277-2012 Determination of Organic Acids and Anions in Fruits and Vegetables - Ion Chromatography

Professional Standard - Water Conservancy

SL 86-1994 Determination of inorganic anions in water (Ion chromatography method)

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

GB/T 15827-1995 Ion plating － Colour of golden TiN
GB/T 31197-2014 Inorganic chemicals for industrial use-Determination of impurity anions - Ion chromatography method
GB/T 29400-2012 Determination of microamount of inorganic anions in fertilizers by ion chromatography
GB/T 24876-2010 Determination of seven anions in waste water from livestock and poultry farm—Ion chromatography
GB/T 15454-1995 Industrial circulating cooling water－Determination of sodium, ammonium, potassium, magnesium and calcium－Ions chromatography
GB/T 23978-2009 Liquid dyes—Determination of chloride ion—Ion chromatography
GB/T 2399-2014 Powder dyes―Determination of fineness by sieve analysis
GB/T 2399-2003 Cationic dyes - Determination of dyeing shade and relative strength
GB/T 11446.7-2013 Test Method for Trace Anion in Electronic Grade Water by Ion Chromatography
GB/T 14571.5-2016 Test method of monoethylene glycol for industrial use―Part 5:Determination of chloride ion―Ion chromatography
GB/T 28726-2012 Gas analysis—Gas chromatograph with helium ionization detector
GB/T 11446.7-1997 Test method for trace chloride, nitrate, phosphate, sulfate in electronic grade water by ion-chromatography
GB/T 15454-2009 Industrial circulating cooling water - Determination of sodium，potassium， magnesium and calcium - Ion chromatography
GB/T 42276-2022 Determination of fluorine ion and chloride ion in silicon nitride powder—Ion chromatography method
GB/T 23737-2009 Determination of free canavanine in feeds - Ion exchange chromatography

Professional Standard - Non-ferrous Metal

YS/T 928.6-2013 Methods for Chemical Analysis of Nickel Cobalt Manganese Composite Hydroxide Part 6: Determination of Sulfate Ion Contents Ion Chromatography

Henan Provincial Standard of the People's Republic of China

DB41/T 778-2013 Determination of Chloride Ion Content in Chemical Fertilizers by Ion Chromatography

Professional Standard - Tobacco

YC/T 248-2008 Tobacco and tobacco products—Determination of inorganic anion—Ion chromatographic method
YC/T 275-2008 Determination of citrate,phosphate and acetate in cigarette paper—Ion chromatography method

Guangdong Provincial Standard of the People's Republic of China

DB44/T 417-2007 Determination of bromate in drinking water using ion chromatography

Professional Standard - Electricity

DL/T 954-2005 Analysis of water and steam in fossil fuel power plant Determination of fluoride acetate formate chloride nitrite nitrate phosphate and sulfate by ion chromatography
DL/T 301-2011 Analytical method of steam and water in power plant. Determination of trace cations by ion chromatography

Professional Standard - Geology

DZ/T 0064.51-1993 Groundwater quality test methods - the determination of chloridion, fluorinion, bromide ion, nitrate radical and sulfate radical with ion chromatography method

National Metrological Verification Regulations of the People's Republic of China

JJG 823-1993 Verification Regulation of Ion Chromatograph
JJG 823-2014 Verification regulation for ion chromatograph
JJG(地质) 1008-1990 Verification Regulations for Ion Chromatography

国家质量监督检验检疫总局

SN/T 4815-2017 Determination of fluorinion in animals for import and export-IC method

Professional Standard - Education

JY/T 0575-2020 General rules of analytical methods for ion chromatography
JY/T 020-1996 General rules for ion chromatograpy

Professional Standard - Public Safety Standards

GA/T 1918-2021 Forensic Science Nitrite Ion Test Chemistry and Ion Chromatography
GA/T 1421-2017 Analysis of inorganic ions in explosive residues in Forensics―Ion chromatography

工业和信息化部

YS/T 1380-2020 Method for chemical analysis of rhodium compounds. Determination of the chloride ion and nitrate ion contents. Ion chromatography method
YS/T 1497-2021 Analysis method for platinum compounds Determination of impurity anion content Ion chromatography
YS/T 1496-2021 Analysis method for palladium compounds Determination of impurity anion content Ion chromatography

国家食品药品监督管理局

YY/T 1507.2-2016 Determination the content of impurity element in the implant for surgery ultra-high molecular weight polyethylene powder―Part 2:Determination of chlorine by ion chromatography

Professional Standard - Chemical Industry

HG/T 4492-2013 Natural Nonionic Surface Active Agent Tea Saponin

Taiwan Provincial Standard of the People's Republic of China

CNS 6228-1980 Method of Test for Bromide in Water(Colorimetric Method)
CNS 6230-1980 Method of Test for Iodide in Water(Colorimetric Method)

National Metrological Technical Specifications of the People's Republic of China

JJF 1715-2018 Program of Pattern Evaluation of Ion Chromatographs

交通运输部

JT/T 1230-2018 Standard test method for determination of inorganic anions in motor vehicle engine coolant. Ion chromatography

Anhui Provincial Standard of the People's Republic of China

DB34/T 3370-2019 Determination of Free Chlorine and Bromine on the Surface of Printed Circuit Boards by Ion Chromatography
DB34/T 2374-2015 Determination of Sulfate, Nitrate, Nitrite, Phosphate, Fluoride and Chloride in Coal Mine Water by Ion Chromatography
DB34/T 2192-2014 Determination of Chloride and Sulfate Content in High Purity Sodium Hydroxide by Ion Chromatography

Guangxi Provincial Standard of the People's Republic of China

DB45/T 1152-2015 Ion Chromatography Method for Detection of Sulfite Ion and Phosphate Ion Content in Intermediate Products of Sugar Production Process

Professional Standard - Petroleum

SY/T 7001-2014 Determination of beat stable salts anion composition in alkanolamine desulfurization solution. Ion chromatography
SY 7001-2014 Ion Chromatography for Composition Analysis of Heat Stable Salt Anions in Alcoholic Ammonia Desulfurization Solution

Hebei Provincial Standard of the People's Republic of China

DB13/T 5797-2023 Determination of calcium sulfate in soil by ion chromatography

Shandong Provincial Standard of the People's Republic of China

DB37/T 4151-2020 Determination of Acrylic Acid in Water by Ion Chromatography
DB37/T 4152-2020 Determination of water quality glyphosate ion chromatography
DB37/T 1897-2011 Determination of Soil Nitrate Nitrogen by Ion Chromatography

Jiangxi Provincial Standard of the People's Republic of China

DB3607/T 003-2022 Specifications for the construction of ionic rare earth green mines

Korean Agency for Technology and Standards (KATS)

KS I ISO 14911:2009 Water quality-Determination of dissolved Li+, Na+,NH4+, K+, Mn2+, Ca2+, Mg2+, Sr2+ and Ba2+ using ion chromatography-Method for water and waste water
KS M 0180-2019 Standard test method for halogen(F, Cl, Br) and sulfur content by oxidative pyrohydrolytic combustion followed by ion chromatography detection (Combustion ion chromatography－CIC)
KS M 0180-2009(2019) Standard test method for halogen(F, Cl, Br) and sulfur content by oxidative pyrohydrolytic combustion followed by ion chromatography detection (Combustion ion chromatography－CIC)
KS M 0035-1993 General rules for ion chromatographic analysis
KS M 0180-2009 Standard test method for halogen(F, Cl, Br) and sulfur content by oxidative pyrohydrolytic combustion followed by ion chromatography detection (Combustion ion chromatography－CIC)
KS M 0035-2023 General rules for ion chromatographic analysis
KS M 5105-2022 Pigment, crome-green

International Organization for Standardization (ISO)

ISO 14911:1998 Water quality - Determination of dissolved Li<(hoch)+>, Na<(hoch)+>, NH<(Index)4><(hoch)+>, K<(hoch)+>, Mn<(hoch)2+>, Ca<(hoch)2+>, Mg<(hoch)2+>, Sr<(hoch)2+> and Ba<(hoch)2+> using ion chromatography - Method for water and waste water

US-ACEI

IPC TM-650 2.3.28-1995 Ionic Analysis of Circuit Boards Ion Chromatography Method

IPC - Association Connecting Electronics Industries

IPC TM-650 2.3.28B-2012 Ionic Analysis of Circuit Boards@ Ion Chromatography Method
IPC TM-650 2.3.28A-2004 Ionic Analysis of Circuit Boards@ Ion Chromatography Method
IPC WP-008 CD-2005 Setting Up Ion Chromatography Capability

German Institute for Standardization

DIN EN ISO 14911:1999 Water quality - Determination of dissolved Li<(hoch)+>, Na<(hoch)+>, NH<(Index)4><(hoch)+>, K<(hoch)+>, Mn<(hoch)2+>, Ca<(hoch)2+>, Mg<(hoch)2+>, Sr<(hoch)2+> and Ba<(hoch)2+> using ion chromatography - Method for water and waste water (ISO 14911:1998); G
DIN EN 17813:2024-03 Environmental solid matrices - Determination of halogens and sulfur by oxidative pyrohydrolytic combustion followed by ion chromatography; German version EN 17813:2023

European Committee for Standardization (CEN)

EN ISO 14911:1999 Water Quality - Determination of Dissolved Li+, Na+, NH4+, K+, Mn2+, Ca2+, Mg2+, Sr2+ and Ba2+ Using Ion Chromatography - Method for Water and Waste Water ISO 14911:1998
EN 17813:2023 Environmental solid matrices - Determination of halogens and sulfur by oxidative pyrohydrolytic combustion followed by ion chromatography

Association Francaise de Normalisation

NF T90-048*NF EN ISO 14911:1999 Water quality - Determination of dissolved Li+, Na+, NH 4+, K+, Mn 2+, Ca 2+, Mg 2+, Sr 2+ and Ba 2+ using ion chromatography - Method for water and waste water.
NF M60-804-2:2004 Nuclear energy - Activity measurement of transuranium elements (Pu, Am, Cm) in water with alpha spectrometry - Part 2 : radionuclides separation with anionic and cationic resines and chromatographic extraction.
NF EN 13366:2001 Fertilizers - Treatment with cationic ion exchange resin for determination of chelated trace element content and chelated trace element fraction
NF EN ISO 10304-4:2022 Water quality - Determination of dissolved anions by liquid ion chromatography - Part 4: determination of chlorate, chloride and chlorite ions in lightly contaminated water
NF EN 17813:2023 Solid environmental matrices - Method for measuring halogens and sulfur by oxidative pyrohydrolytic combustion followed by ion chromatography analysis
FD CEN/TR 17345:2020 Waste - State of the art - Halogens and sulfur by oxidative pyrohydrolytic combustion followed by detection by ion chromatography

IN-BIS

IS 13974-1994 Polyanionic cellulose - specification
IS 11660-1986 Quantitative evaluation method of cationic fixatives

Institute of Interconnecting and Packaging Electronic Circuits (IPC)

IPC TM-650 2.3.28-2004 Ionic Analysis of Circuit Boards, Ion Chromatography Method Revision A
IPC WP-008-2005 Setting Up Ion Chromatography Capability

RU-GOST R

GOST 33914-2016 Juice products. Determination of anions by ion chromatography
GOST R 55339-2012 Juice products. Determination of anions by ion exchange chromatography method
GOST 33975-2016 Juice products. Determination of cations (potassium, sodium, calcium and magnesium) by ion chromatography method
GOST 33457-2015 Fruit and vegetable products. Method for qualitative detection of synthetic colours using ion-paired extraction
GOST R 54743-2011 Juice products. Determination of free amino acids by ion-exchange chromatography method

KR-KS

KS M 0035-2008(2023) General rules for ion chromatographic analysis

GOST

GOST 34801-2021 Drinking water. Determination of bromate ions content by ion chromatography

British Standards Institution (BSI)

BS EN 17813:2023 Environmental solid matrices. Determination of halogens and sulfur by oxidative pyrohydrolytic combustion followed by ion chromatography
BS EN ISO 14680-1:2006 Paints and varnishes. Determination of pigment content. Centrifuge method
BS EN ISO 2611-1:2024 Analysis of natural gas. Halogen content of biomethane - HCl and HF content by ion chromatography
BS ISO 19242:2021 Rubber. Determination of total sulfur content by ion chromatography
BS EN IEC 60754-3:2019 Test on gases evolved during combustion of materials from cables - Measurement of low level of halogen content by ion chromatography
BS ISO 20702:2017 Fertilizers and soil conditioners. Determination of microamounts of inorganic anions in fertilizers by ion chromatography

American Society for Testing and Materials (ASTM)

ASTM C1845-16 Standard Practice for The Separation of Lanthanide Elements from Uranium Matrices Using High Pressure Ion Chromatography (HPIC) for Isotopic Analyses by Inductively Coupled Plasma Mass Spectrometry (ICP-MS)
ASTM RR-D15-1025 2009 D5827-Test Method for Analysis of Engine Coolant for Chloride and Other Anions by Ion Chromatography
ASTM D5794-95 Standard Guide for Determination of Anions in Cathodic Electrocoat Permeates by Ion Chromatography
ASTM D5794-95(2008) Standard Guide for Determination of Anions in Cathodic Electrocoat Permeates by Ion Chromatography
ASTM D5794-95(2014) Standard Guide for Determination of Anions in Cathodic Electrocoat Permeates by Ion Chromatography
ASTM D5794-95(2002) Standard Guide for Determination of Anions in Cathodic Electrocoat Permeates by Ion Chromatography
ASTM D4327-97 Standard Test Method for Anions in Water by Chemically Suppressed Ion Chromatography
ASTM D4327-03 Standard Test Method for Anions in Water by Chemically Suppressed Ion Chromatography
ASTM D5542-04 Standard Test Methods for Trace Anions in High Purity Water by Ion Chromatography
ASTM D4327-11 Standard Test Method for Anions in Water by Suppressed Ion Chromatography
ASTM D5542-04(2009) Standard Test Methods for Trace Anions in High Purity Water by Ion Chromatography
ASTM D4327-17 Standard Test Method for Anions in Water by Chemically Suppressed Ion Chromatography
ASTM UOP959-98 Ammonium Determination in Aqueous Solutions by Ion Chromatography
ASTM D5794-95(2021) Standard Guide for Determination of Anions in Cathodic Electrocoat Permeates by Ion Chromatography
ASTM C1411-14 Standard Practice for The Ion Exchange Separation of Uranium and Plutonium Prior to Isotopic Analysis
ASTM C1411-99 Standard Practice for the Ion Exchange Separation of Uranium and Plutonium Prior to Isotopic Analysis
ASTM D8234-19 Standard Test Method for Anions in High Ionic Water by Ion Chromatography using Tandem Suppressed Conductivity and UV Detection
ASTM C1411-08 Standard Practice for The Ion Exchange Separation of Uranium and Plutonium Prior to Isotopic Analysis
ASTM C1411-01 Standard Practice for the Ion Exchange Separation of Uranium and Plutonium Prior to Isotopic Analysis

Japanese Industrial Standards Committee (JISC)

JIS K 0127:1992 General rules for ion chromatographic analysis
JIS K 0127:2013 General rules for ion chromatography
JIS K 0127:2001 General rules for ion chromatographic analysis
JIS K 6233:2016 Rubber -- Determination of total sulfur content by ion chromatography

SCC

NS-EN 17813:2023 Environmental solid matrices - Determination of halogens and sulfur by oxidative pyrohydrolytic combustion followed by ion chromatography
AWWA WQTC50392 A New Approach to the Determination of Inorganic Anions in Environmental Waters by Ion Chromatography
DANSK DS/EN 17813:2023 Environmental solid matrices – Determination of halogens and sulfur by oxidative pyrohydrolytic combustion followed by ion chromatography
AWWA WQTC50450 Interlaboratory Validation of an Ion Chromatographic Method for the Analysis of DBP Anions in Drinking Water
BS EN ISO 10304-2:1997 Water quality. Determination of dissolved anions by liquid chromatography of ions-Determination of bromide, chloride, nitrate, nitrite, orthophosphate and sulfate in waste water
BS PD ISO/TS 19046-2:2017 Cheese. Determination of propionic acid level by chromatography-Method by ion exchange chromatography
BS EN ISO 10304-1:1995 Water quality. Determination of dissolved anions by liquid chromatography of ions-Determination of fluoride, chloride, nitrite, orthophosphate, bromide, nitrate and sulfate ions. Method for water with low contamination

DIN

DIN EN 17813:2024 Environmental solid matrices - Determination of halogens and sulfur by oxidative pyrohydrolytic combustion followed by ion chromatography

GSO

NB/T 11533-2024 Determination of chloride, fluoride, bromide, sulfate, nitrate, nitrite and phosphate content in coal mine water - Ion chromatography

South African Bureau of Standard

SANS 163-2:1995 Water quality - Determination of dissolved anions by liquid chromatography of ions Part 2: Determination of bromide, chloride, nitrate, nitrite, orthophosphate and sulfate in waste water
SANS 163-1:1992 Water quality - Determination of dissolved fluoride, chloride, nitrite, orthophosphate, bromide, nitrate and sulfate ions, using liquid chromatography of ions Part 1: Method for water with low contamination

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