How about nitrite in sewage

How about nitrite in sewage, Total:178 items.

The international standard classification for "How about nitrite in sewage" includes: food products in general , Milk and processed milk products , Fruits. Vegetables , Animal feeding stuffs , Water quality , Cosmetics. Toiletries , General methods of tests and analysis for food products , Sugar. Sugar products. Starch .

The Chinese standard classification for "How about nitrite in sewage" includes: Food sanitation , Chemical reagent in general , Children foods , Basic standards and general methods , Livestock and poultry feed and additive , Boiler and its auxiliary equipment , Analysis methods for toxic substances in water , Cosmetics , Sugar refining and sugar products in general , Basic standards and general methods .

Yunnan Provincial Standard of the People's Republic of China

DB53/T 624-2014 Determination of Nitrate Nitrogen and Nitrite Nitrogen in Coking Wastewater by Dairyler's Alloy Reduction-Neutralization Titration

Group Standards of the People's Republic of China

T/LNIQA 019-2024 Determination of fluoride, chloride, nitrate, nitrite, sulfate, bromate and phosphate content in drinking natural mineral water - ion chromatography
T/XMTIC 0001-2024 Rapid method for the determination of nitrite in water
T/CPCIF 0168-2021 Rapid detection kits for nitrite，nitrate and ammonia nitrogen in water
T/SATA 053-2023 Determination of bromate, nitrite, chlorate, nitrate and thiocyanate in infant formula - Ion Chromatography

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

GB/T 5009.33-2008 Determination of nitrite and nitrate in foods
GB 6912.1-1986 Determination of nitrate and nitrite - Nitrate UV photometric method
GB/T 13085-1991 Method for determination of nitrite in feeds
GB/T 6912.1-2006 Methods for analysis of water for boiler and for cooling determination of nitrates and nitrites - Part 1: Ultraviolet spectrophotometry for nitrates
GB/T 7493-1987 quality - Determination of nitrogen (nitrite) - Spectrophotometric method
GB/T 6912.1-1986 Methods for analysis of water for boiler and for cooling; The determination of nitrates and nitrites; Ultraviolet spectrophotometry for nitrates
GB/T 5009.33-2003 Determination of nitrite and nitrate in foods
GB/T 5413.32-1997 Milk powder-Determination of nitrate and nitrite contents
GB 6912.3-1986 Determination of nitrate and nitrite a-naphthylamine hydrochloride spectrophotometric method
GB 6912.2-1986 Determination of nitrate and nitrite - Nitrite UV photometric method
GB/T 13580.5-1992 Determination of fluoride, chloride, ntrite, nitrate, salfate in the wet precipitation - Ion chromotography
GB/T 6912.3-1986 Methods for analysis of water for boiler and for cooling; The determination of nitrates and nitrites; Alpha-naphthylamine hydrochloride photometric method
GB/T 6912.2-1986 Methods for analysis of water for boiler and for cooling--The determination of nitrates and nitrites--Ultraviolet spectrophotometry for nitrites
GB/T 13085-2005 Determination of nitrite in feed--Method using colorimetric analysis
GB/T 24800.13-2009 Determination of nitrite in cosmetics by ion chromatography method
GB/T 15401-1994 Fruits, vegetables and derived products--Determination of nitrite and nitrate content
GB 15198-1994 Tolerance limit of nitrite in foods

中华人民共和国环境保护部

GB 7493-1987 Water quality-Determination of nitrogen (nitrite)-Spectrophotometric method
GB 13580.5-1992 Determination of fluoride,chloride,ntrite nitrate,salfate in the wet precipitation-Ion chromotography

Professional Standard - Agriculture

GB/T 5009.33-1996 Method for determination of nitrite and nitrate in foods
GB 13085-1991 Method for determination of nitrite in feeds
NY/T 1375-2007 Determination of Nitrite and Nitrate in Plant Products Ion Chromatography Method
KJ 201704 Rapid detection of nitrite in food by naphthalene ethylenediamine hydrochloride method

Professional Standard - Urban Construction

CJ 26.26-1991 Municipal sewage water quality inspection method standard Determination of nitrite nitrogen spectrophotometric method
CJ/T 76-1999 Municipal sewage.Determination of nitrogen(nitrite).Sepectrophotometric method

Professional Standard - Light Industry

QB/T 5013-2016 Determination of nitrite in sugars

Professional Standard - Commodity Inspection

SN/T 3151-2012 Determination of nitrate and nitrite in food for export-Ion chromatography

National Health Commission of the People's Republic of China

GB 5009.33-2016 National food safety standard-Determination of nitrite and nitrate in foods
GB 5009.33-2010 Determination of nitrite and nitrate in foods

Taiwan Provincial Standard of the People's Republic of China

CNS 4052-1976 Methods for Determination of Nitrite Nitrogen in Polluted and Waste Water
CNS 15091-15-2007 Method of test for deep sea water - Determination of nitrite
CNS 12980-1992 Method of Test for Milk and Milk Products - Determination of Nitrate and Nitrite Contents of Edible Cheese

国家市场监督管理总局、中国国家标准化管理委员会

GB/T 13085-2018 Determination of nitrite in feeds—Colorimetry method

Professional Standard - Chemical Industry

HG/T 3526-2003 Industrial circulating cooling water-Determination of nitrite-Molecular absorption spectrometric method

Hubei Provincial Standard of the People's Republic of China

DB42/T 2120-2023 Determination of ammonia nitrogen, nitrite nitrogen and nitrate nitrogen in soil by gas phase molecular absorption spectrometry

(U.S.) Ford Automotive Standards

FORD FLTM AK 103-2-2001 QUANTITATIVE ANALYSIS OF NITRITE (AS NO2) IN CLEANERS
FORD FLTM AK 103-02-2001 QUANTITATIVE ANALYSIS OF NITRITE (AS NO2) IN CLEANERS

American Society for Testing and Materials (ASTM)

ASTM D3867-99 Standard Test Methods for Nitrite-Nitrate in Water
ASTM D3867-09 Standard Test Methods for Nitrite-Nitrate in Water
ASTM D3867-04 Standard Test Methods for Nitrite-Nitrate in Water
ASTM D3867-16 Standard Test Methods for Nitrite-Nitrate in Water
ASTM D3867-16(2021)e1 Standard Test Methods for Nitrite-Nitrate in Water
ASTM D7781-14 Standard Test Method for Nitrite-Nitrate in Water by Nitrate Reductase
ASTM D7781-23 Standard Test Method for Nitrite-Nitrate in Water by Nitrate Reductase

SCC

AS 2029:1977 Method for the determination of nitrate and nitrite content in waters
DANSK DS/EN 12014-3:2005 Foodstuffs - Determination of nitrate and/or nitrite content - Part 3: Spectrometric determination of nitrate and nitrite content of meat products after enzymatic reduction of nitrate to nitrite
NS-EN 12014-3:2005 Foodstuffs — Determination of nitrate and/or nitrite content — Part 3: Spectrometric determination of nitrate and nitrite content of meat products after enzymatic reduction of nitrate to nitrite
BS DD ENV 12014-3:1998 Foodstuffs. Determination of nitrate and/or nitrite content-Spectrometric determination of nitrate and nitrite content of meat products after enzymatic reduction of nitrate to nitrite
NS 4865:1983 Air quality — Determination of the sum of nitrite- and nitrate-nitrogen in precipitation
AWWA ACE70475 How Selectivity Affects Column Performance During Nitrate, Perchlorate, and Arsenate Ion Exchange
NS 4745:1991 Water analysis - Determination of the sum of nitrite nitrogen and nitrate nitrogen
BS DD ENV 12014-4:1998 Foodstuffs. Determination of nitrate and/or nitrite content-Ion-exchange chromatographic (IC) method for the determination of nitrate and nitrite content of meat products
AWWA ACE70967 Pilot Testing Biological Treatment of Nitrate-Contaminated Groundwater
AWWA WQTC71502 Pilot Testing Biological Treatment of Nitrate-Contaminated Groundwater
AWWA ACE70552 Pilot Testing Biological Treatment of Nitrate-Contaminated Groundwater
NS-EN 12014-4:2005 Foodstuffs — Determination of nitrate and/or nitrite content — Part 4: Ion-exchange chromatographic (IC) method for the determination of nitrate and nitrite content of meat products
DANSK DS/EN 12014-4:2005 Foodstuffs - Determination of nitrate and/or nitrite content - Part 4: Ion-exchange chromatographic (IC) method for the determination of nitrate and nitrite content of meat products
AWWA ACE93161 Chlorite and Chlorate in Drinking Water: DBPs or Environmental Pollutants?
AWWA ACE61613 Biological Treatment of ISEPtm Brine Contaminated with Perchlorate and Nitrate
BS 2690-7:1968 Methods of testing water used in industry-Nitrite, nitrate and ammonia (free, saline and albuminoid)
AWWA JAW49183 Journal AWWA — Nitrate Removal From Contaminated Groundwater
UNE 34113:1981 FRUIT, VEGETABLE PRODUCTS AND DERIVED PRODUCTS. DETERMINATION OF NITRITES AND NITRITES CONTENT. PHOTOMETRIC METHOD.
DANSK DS/CEN/TS 16177:2012 Sludge, treated biowaste and soil - Extraction for the determination of extractable ammonia, nitrate and nitrite
SN-CEN/TS 16177:2012 Sludge, treated biowaste and soil — Extraction for the determination of extractable ammonia, nitrate and nitrite
AWWA MTC93026 Nitrate Removal From Contaminated Groundwater Through Reverse Osmosis
AENOR UNE 34113:1981 Fruits, vegetables and derived products. Determination of nitrite and nitrate content. Photometric method.
AWWA ACE95065 Occurrence of Nitrates in Water Resources
UNE-EN ISO 10304-1:1995 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. (ISO 10304-1:1992)
NS-EN ISO 10304-1:1995 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 (ISO 10304-1:1992)
DANSK DS/EN 26777:2003 Water quality - Determination of nitrite - Molecular absorption spectrometric method
AWWA ACE92031 Nitrate Removal From Groundwater Sources
NS-EN 12014-5:1997 Foodstuffs — Determination of nitrate and/or nitrite content — Part 5: Enzymatic determination of nitrate content of vegetable-containing food for babies and infants
AWWA ACE54301 Nitrite Formation Potential During Medium Pressure UV Disinfection of Drinking Water
AWWA ACE68963 Development of Chlorite CT Equation for Nitrification Inhibition
AWWA WQTC55193 Diversity of Ammonia- and Nitrite-Oxidizing Bacteria in Chloraminated Distribution Systems

ZA-SANS

SANS 5210:2010 Water - Nitrate and nitrite content
SANS 5210:2006 Water - Nitrate and nitrite content
SANS 13395:1996 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection

PL-PKN

PN C04642-05-1991 Water and waste water. Tests of pollutants in atmospheric precipitation. Determination of nitrite and the sum of nitrate and nitrite by colorimetric method
PN A82114-1974 Mea? and meat produc?s Determinalion of nitrites and ni?ra?es
PN A75112-1992 Fruits, vegetables and derived products. Determination of nitrites and nitrates content

European Committee for Standardization (CEN)

DD ENV 12014-3-1998 Foodstuffs - Determination of Nitrate and/or Nitrite Content - Part 3: Spectrometric Determination of Nitrate and Nitrite Content of Meat Products After Enzymatic Reduction of Nitrate to Nitrite
EN 12014-3:2005 Foodstuffs - Determination of nitrate and/or nitrite content - Part 3: Spectrometric determination of nitrate and nitrite content of meat products after enzymatic reduction of nitrate to nitrite
EN 1592-4:1997 Aluminium and aluminium alloys - HF seam welded tubes - Part 4: Tolerances on dimensions and form for square, rectangular and shaped tubes
CEN/TS 16177:2012 Sludge, treated biowaste and soil - Extraction for the determination of extractable ammonia, nitrate and nitrite
EN 12014-4:2005 Foodstuffs - Determination of nitrate and/or nitrite content - Part 4: Ion-exchange chromatographic (IC) method for the determination of nitrate and nitrite content of meat products
EN 12014-5:1997 Foodstuffs - Determination of nitrate and/or nitrite content - Part 5: Enzymatic determination of nitrate content of vegetable-containing food for babies and infants
EN ISO 13395:1996 Water Quality - Determination of Nitrite Nitrogen and Nitrate Nitrogen and the Sum of Both by Flow Analysis (CFA and FIA) and Spectrometric Detection

Indonesia Standards

SNI 06-2484-2002 Test methods for nitrite content in water by colorymetry
SNI 19-1662-1989 Water and waste water, Test method for nitrite content

SE-SIS

SIS SS 02 81 33-1991 Determination of the sum of the nitrite and nitrate nitrogen content of water

British Standards Institution (BSI)

BS EN 12014-3:2005 Foodstuffs - Determination of nitrate and/or nitrite content - Spectrometric determination of nitrate and nitrite content of meat products after enzymatic reduction of nitrate to nitrite
BS EN 12014-4:2005 Foodstuffs - Determination of nitrate and/or nitrite content - Ion-exchange chromatographic (IC) method for the determination of nitrate and nitrite content of meat products
BS EN 12014-5:1997 Foodstuffs - Determination of nitrate and/or nitrite content - Enzymatic determination of nitrate content of vegetable-containing food for babies and infants
DD ENV 12014-4-1998 Foodstuffs. Determination of nitrate and/or nitrite content. Ion-exchange chromatographic (IC) method for the determination of nitrate and nitrite content of meat products
BS EN 12014-2:1997 Foodstuffs - Determination of nitrate and/or nitrite content - HPLC/IC method for the determination of nitrate content of vegetables and vegetable products
BS EN ISO 10304-2:1997(1998)*BS 6068-2.53:1997 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
BS 6248-11:1987 Caseins and caseinates. Method for determination of nitrate and nitrite contents

NO-SN

NS 4865-1983 Air quality - Determination of the sum of nitrite- and nitrate-nitrogen in precipitation
NS 4745-1991 Water analysis - Determination of the sum of nitrite nitrogen and nitrate nitrogen

YU-JUS

JUS H.Z1.137-1985 Testing of industrial vvaters. Determination of nitrite-nitrate and the combined nitrite-nitrate nitrogen, Spectrophotometric method

Association Francaise de Normalisation

NF EN 12014-3:2005 Food products - Determination of the nitrate and/or nitrite content - Part 3: spectrometric determination of the nitrate and nitrite content of meat products after enzymatic reduction of nitrates to nitrites
NF V03-010-3*NF EN 12014-3:2005 Foodstuffs - Determination of nitrate and/or nitrite content - Part 3 : spectrometric determination of nitrate and nitrite content of meat products after enzymatic reduction of nitrate to nitrite
NF V05-121:1979 Fruits, légumes et produits dérivés - Détermination des teneurs en nitrites et en nitrates
NF EN 12014-4:2005 Food products - Determination of the nitrate and/or nitrite content - Part 4: determination by ion chromatography (IC) of the nitrate and nitrite content in meat products
NF V03-010-4*NF EN 12014-4:2005 Foodstuffs - Determination of nitrate and/or nitrite content - Part 4 : ion-exchange chromatographic (IC) method for the determination of nitrate and nitrite content of meat products
NF V03-010-3:1998 Foodstuffs. Determination of nitrate and/or nitrite content. Part 3 : spectrometric determination of nitrate and nitrite content of meat products after enzymatic reduction of nitrate to nitrite.
NF V03-010-4:1998 Foodstuffs. Determination of nitrate and/or nitrite content. Part 4 : ion-exchange chromatographic (IC) method for the determination of nitrate and nitrite content of meat products.
NF T30-047:1971 DETERMINATION OF WATER-SOLUBLE SALTS (SULPHATES,CHLORIDES,NITRATES) IN PIGMENTS.
XP X31-080*XP CEN/TS 16177:2012 Sludge, treated biowaste and soil - Extraction for the determination of extractable ammonia, nitrate and nitrite
NF T90-046:1996 Water quality - Determination of dissolved anions by liquid chromatography of ions - Part 2 : determination of bromide, chloride, nitrate, nitite, orthophosphate and sulfate in waste water.
NF V03-010-2*NF EN 12014-2:2017 Foodstuffs - Determination of nitrate and/or nitrite content - Part 2 : HPLC/IC method for the determination of nitrate content of vegetables and vegetable products
NF V04-292:1986 Dried whey. Determination of nitrate and nitrite contents. Method by cadmium reduction and spectrometry.
NF V03-010-2:1997 Foodstuffs. Determination of nitrate and/or nitrite content. Part 2 : HPLC/IC method for the determination of nitrate content of vegetables and vegetable products.
NF EN 12014-2:2017 Food products - Determination of the nitrate and/or nitrite content - Part 2: method for determining the nitrate content of vegetables and vegetable products by HPLC/IC
NF V03-010-5*NF EN 12014-5:1997 Foodstuffs. Determination of nitrate and/or nitrite content. Part 5 : enzymatic determination of nitrate content of vegetable containing food for babies and infants.

RO-ASRO

STAS 8900/2-1971 SURFACE AND WASTE WATERS Nitrite determination
STAS 12754-1989 SEA WATER Nitrites content determination
STAS 11581-1983 VEGETABLE AND FRUIT PRODUCTSAND VEGETABLE WITH MEAT PRODUCTS Determination of nitrate and nitrite contents
STAS SR ISO 6777:1996 Water quality - Determination of nitrite - Molecular absorption spectrometric method

German Institute for Standardization

DIN EN 12014-3:2005-08 Foodstuffs - Determination of nitrate and/or nitrite content - Part 3: Spectrometric determination of nitrate and nitrite content of meat products after enzymatic reduction of nitrate to nitrite; German version EN 12014-3:2005
DIN EN 12014-3:2005 Foodstuffs - Determination of nitrate and/or nitrite content - Part 3: Spectrometric determination of nitrate and nitrite content of meat products after enzymatic reduction of nitrate to nitrite; German version EN 12014-3:2005
DIN EN 12014-4:2005 Foodstuffs - Determination of nitrate and/or nitrite content - Part 4: Ion-exchange chromatographic (IC) method for the determination of nitrate and nitrite content of meat products; German version EN 12014-4:2005
DIN EN 12014-4:2005-08 Foodstuffs - Determination of nitrate and/or nitrite content - Part 4: Ion-exchange chromatographic (IC) method for the determination of nitrate and nitrite content of meat products; German version EN 12014-4:2005
DIN CEN/TS 16177:2012-05*DIN SPEC 91260:2012-05 Sludge, treated biowaste and soil - Extraction for the determination of extractable ammonia, nitrate and nitrite; German version CEN/TS 16177:2012
DIN 10476:2001 Determination of nitrite and nitrate content of milk products - Enzymatic method (color test)
DIN EN 26777:1993 Water quality; determination of nitrite; molecular absorption spectrometric method (ISO 6777:1984); german version EN 26777:1993

CZ-CSN

CSN 83 0540 Cast.11-1984 Chemical and physical analysis of waste water Determination of nitrites
CSN 68 4132-1985 Determination of small mouts of nitrites

Danish Standards Foundation

DS 223:1991 Water analysis. Determination of the sum of nitrite- and nitrate-nitrogen
DS/EN 12014-3:2005 Foodstuffs – Determination of nitrate and/or nitrite content – Part 3: Spectrometric determination of nitrate and nitrite content of meat products after enzymatic reduction of nitrate to nitrite
DS 230:1988 Water quality. Nitrate- + nitrite-nitrogen. Reduction by Devardas alloy
DS/EN 12014-4:2005 Foodstuffs – Determination of nitrate and/or nitrite content – Part 4: Ion-exchange chromatographic (IC) method for the determination of nitrate and nitrite content of meat products
DS/CEN/TS 16177:2012 Sludge, treated biowaste and soil - Extraction for the determination of extractable ammonia, nitrate and nitrite
DS/EN 26777:2003 Water quality - Determination of nitrite - Molecular absorption spectrometric method

HU-MSZT

MSZ 448/12.lap-1964 Drinking water nitrate and nitrite ions definition
MSZ 260/11-1971 Test for determination of nitrate wastewater

Lithuanian Standards Office

LST EN 12014-3-2005 Foodstuffs - Determination of nitrate and/or nitrite content - Part 3: Spectrometric determination of nitrate and nitrite content of meat products after enzymatic reduction of nitrate to nitrite
LST EN 12014-4-2005 Foodstuffs - Determination of nitrate and/or nitrite content - Part 4: Ion-exchange chromatographic (IC) method for the determination of nitrate and nitrite content of meat products

AENOR

UNE-EN 12014-3:2006 Foodstuffs - Determination of nitrate and/or nitrite content - Part 3: Spectrometric determination of nitrate and nitrite content of meat products after enzymatic reduction of nitrate to nitrite
UNE-EN 12014-4:2006 Foodstuffs - Determination of nitrate and/or nitrite content - Part 4: Ion-exchange chromatographic (IC) method for the determination of nitrate and nitrite content of meat products
UNE-EN 12014-5:1997 FOODSTUFFS. DETERMINATION OF NITRATE AND/OR NITRITE CONTENT. PART 5: ENZYMATIC DETERMINATION OF NITRATE CONTENT OF VEGETABLE-CONTAINING FOOD FOR BABIES AND INFANTS.

AT-ON

ONORM DIN 10338-1992 Determination of nitrate and nitrite contents of cheese - Method by cadmium reduction

International Organization for Standardization (ISO)

ISO 10304-2:1995 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
ISO 10304-1:1992 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
ISO 13395:1996 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
ISO 6736:1982 Dried milk; Determination of nitrate and nitrite contents; Method by cadmium reduction and photometry
ISO 6777:1984 Water quality; Determination of nitrite; Molecular absorption spectrometric method
ISO 6635:1984 Fruits, vegetables and derived products; Determination of nitrite and nitrate content; Molecular absorption spectrometric method

NL-NEN

NEN 6474-1981 Water ■ Photometric determination of nitrite content
NEN 6652-1992 Water- Photometric determination of the sum of the contents of dissolved nitrate and nitrite by continuous flow analysis

RU-GOST R

GOST EN 12014-3-2015 Foodstuffs. Determination of nitrate and/or nitrite content. Part 3. Spectrophotometric determination of nitrate and nitrite content of meat products after enzymatic reduction of nitrate to nitrite
GOST EN 12014-4-2015 Foodstuffs. Determination of nitrate and/or nitrite content. Part 4. Determination of nitrate and nitrite content in meat products by ion-exchange chromatographic method
GOST R 51460-1999 Cheese. Method for determination of nitrate and nitrite contents
GOST 32257-2013 Milk and milk products. Method for determination of nitrate and nitrite contents

Korean Agency for Technology and Standards (KATS)

KS M 9108-1996 Water quality-Determination of dissolved fluoride,chloride,nitrite,orthophosphate,bromide,nitrate and sulfate ions,using liquid chromatography of ions(Method for water with low contamination)
KS M ISO 10304-2-2008 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
KS I ISO 13395:2008 Water quality-Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
KS H ISO 4099:2001 Cheese－Determination of nitrate and nitrite contents－Method by cadmium reduction and photometry
KS H ISO 6736:2001 Dried milk－Determination of nitrate and nitrite contents－Method by cadmium reduction and photometry
KS H ISO 6736:2006 Dried milk－Determination of nitrate and nitrite contents－Method by cadmium reduction and photometry
KS I ISO 6777:2007 Water quality－Determination of nitrite－Molecular absorption spectrometric method
KS H ISO 4099:2006 Cheese－Determination of nitrate and nitrite contents－Method by cadmium reduction and photometry

Japanese Industrial Standards Committee (JISC)

JIS K 0400-35-40:2000 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

GM Europe

GME B 040 1288-2003 Spray Degreasing Agent (Neutral) Nitrite-Free (English/German)

IN-BIS

IS 9967-1981 Cadmium reduction photometry method for determination of nitrate and nitrite content in cheese

BE-NBN

NBN V 21-027-1982 Cheese - Determination of nitrate and nitrite contents - Reference method

VN-TCVN

TCVN 7257-2003 Tobacco and tobacco products.Determination of total nitrate and nitrite contents
TCVN 6178-1996 Water quality.Determination of nitrite.Molecular absorption spectrometric method
TCVN 7814-2007 Foodstuffs.Determination of nitrate and/or nitrite content.Part 2: HPLC/LC method for the determination of nitrade content of vegetables and vegetable products

KR-KS

KS H ISO 4099-2001 Cheese－Determination of nitrate and nitrite contents－Method by cadmium reduction and photometry
KS H ISO 6736-2001 Dried milk－Determination of nitrate and nitrite contents－Method by cadmium reduction and photometry
KS I ISO 6777-2023 Water quality — Determination of nitrite — Molecular absorption spectrometric method

Others: How to measure the content of nitrite in water,How to detect nitrite detection in water,How about nitrite in sewage