Color developer for water nitrate nitrogen

Color developer for water nitrate nitrogen, Total:61 items.

The international standard classification for "Color developer for water nitrate nitrogen" includes: Water quality , Surface active agents .

The Chinese standard classification for "Color developer for water nitrate nitrogen" includes: Analysis methods for toxic substances in water , Tooth paste, soap and detergent , Environmental Quality Standard for atmosphere, water and soil .

Group Standards of the People's Republic of China

T/CPCIF 0168-2021 Rapid detection kits for nitrite，nitrate and ammonia nitrogen in water
T/CHES 14-2017 Water Quality Determination of Nitrite Nitrogen Gas Phase Molecular Absorption Spectrometry
T/NAIA 0247-2023 Determination of water quality nitrate nitrogen by continuous flow analysis method
T/CHES 13-2017 Water Quality Determination of Nitrate Nitrogen Gas Phase Molecular Absorption Spectrometry
T/NAIA 0248-2023 Determination of nitrite nitrogen in water quality by continuous flow analysis method

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

GB/T 44998-2024 Determination of nitrates and nitrites in surfactants—Ion chromatography method
GB/T 7493-1987 quality - Determination of nitrogen (nitrite) - Spectrophotometric method
GB/T 13580.5-1992 Determination of fluoride, chloride, ntrite, nitrate, salfate in the wet precipitation - Ion chromotography
GB/T 7480-1987 quality - Determination of nitrate - Spectrophotometric method with phenol disulfonic acid

Ministry of Ecology and Environment of the People's Replublic of China

GB 13580.5-1992 Determination of fluoride,chloride,ntrite nitrate,salfate in the wet precipitation-Ion chromotography
GB 7493-1987 Water quality-Determination of nitrogen (nitrite)-Spectrophotometric method
GB 7480-1987 Water quality-Determination of nitrate-Spectrophotometric method with phenol disulfonic acid

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

Professional Standard - Environmental Protection

HJ 634-2012 Soil-Determination of ammonium,nitrite and nitrate by extraction with potassium chloride solution -spectrophotometric methods
HJ/T 197-2005 Water quality -- Determination of nitrite-nitrogen Gas-phase molecular absorption spectrometry
HJ/T 346-2007 Water quality-Determination of nitrate-nitrogen-Ultraviolet spectrophotometry
HJ 197-2024 Water quality-Determination of nitrite nitrogen-Gas phase molecular absorption spectrometry
HJ 198-2024 Water quality-Determination of nitrate nitrogen-Gas phase molecular absorption spectrometry
HJ/T 198-2005 Water quality -- Determination of nitrate-nitrogen Gas-phase molecular absorption spectrometry

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

Danish Standards Foundation

DS 223:1991 Water analysis. Determination of the sum of nitrite- and nitrate-nitrogen
DS 230:1988 Water quality. Nitrate- + nitrite-nitrogen. Reduction by Devardas alloy
DANSK DS/ISO 23696-2:2023 Water quality – Determination of nitrate in water using small-scale sealed tubes – Part 2: Chromotropic acid colour reaction
DANSK DS/EN ISO 13395:1997 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
DS/EN ISO 13395:1997 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
DANSK DS/ISO 23696-1:2023 Water quality – Determination of nitrate in water using small-scale sealed tubes – Part 1: Dimethylphenol colour reaction

Standards Norway

NS 4745-1991 Water analysis - Determination of the sum of nitrite nitrogen and nitrate nitrogen
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
NS 4865-1983 Air quality - Determination of the sum of nitrite- and nitrate-nitrogen in precipitation
NS-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 (ISO 13395:1996)

British Standards Institution (BSI)

BS ISO 23696-2:2023 Water quality. Determination of nitrate in water using small-scale sealed tubes - Chromotropic acid colour reaction
BS ISO 23696-1:2023 Water quality. Determination of nitrate in water using small-scale sealed tubes - Dimethylphenol colour reaction
BS EN ISO 13395:1996(1998) Water quality — Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection

Swedish Institute for Standards

SS 28133:1991 Determination of the sum of the nitrite and nitrate nitrogen content of water
SIS SS 02 81 33-1991 Determination of the sum of the nitrite and nitrate nitrogen content of water

Ente Nazionale Italiano di Unificazione

UNI ISO 23696-2:2023 Water quality - Determination of nitrate in water using small-scale sealed tubes - Part 2: Chromotropic acid colour reaction
UNI 11700:2017 Water quality - Determination of Nitric Nitrogen (Nitrates) in waste, natural and drinking waters with small-scale sealed-tube method
UNI EN ISO 10304-1:1997 Water quality. Determination of dissolved fluoride, chloride, nitrite, orthophosphate, bromide, nitrate and sulfate ions, using liquid chromatography of ions.

International Organization for Standardization (ISO)

ISO 23696-2:2023 Water quality — Determination of nitrate in water using small-scale sealed tubes — Part 2: Chromotropic acid colour reaction
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

GCC Standardization Organization

GSO ISO 23696-2:2024 Water quality — Determination of nitrate in water using small-scale sealed tubes — Part 2: Chromotropic acid colour reaction
OS GSO ISO 23696-2:2024 Water quality — Determination of nitrate in water using small-scale sealed tubes — Part 2: Chromotropic acid colour reaction
GSO ISO 13395:2013 Water quality -- Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
BH GSO ISO 23696-2:2024 Water quality — Determination of nitrate in water using small-scale sealed tubes — Part 2: Chromotropic acid colour reaction

Yugoslav Association for Standardization

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

European Committee for Standardization (CEN)

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

South African Bureau of Standard

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

Korean Agency for Technology and Standards (KATS)

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 I ISO 13395-2008(2018) Water quality－Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
KS I 3220-2007(2017) Water quality－Determination of nitrate
KS I 3220-2017 Water quality－Determination of nitrate

The Directorate General of Specifications and Metrology (DGSM)

OS GSO ISO 13395:2013 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 19-6964.7-2003 Seawater quality - Part 7: Test methods of nitrates (NO3-N) with cadmium reduction by spectrophotometry

Spanish Association for Standardization (UNE)

AENOR UNE-EN ISO 13395:1997 WATER QUALITY. DETERMINATION OF NITRITE NITROGEN AND NITRATE NITROGEN AND THE SUM OF BOTH BY FLOW ANALYSIS (CFA AND FIA) AND SPECTROMETRIC DETECTION. (ISO 13395:1996).
UNE-EN ISO 13395:1997 WATER QUALITY. DETERMINATION OF NITRITE NITROGEN AND NITRATE NITROGEN AND THE SUM OF BOTH BY FLOW ANALYSIS (CFA AND FIA) AND SPECTROMETRIC DETECTION. (ISO 13395:1996).

German Institute for Standardization

DIN EN ISO 13395:1996-12 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection (ISO 13395:1996); German version EN ISO 13395:1996

Lithuanian Standards Office

LST EN ISO 13395:2000 Water quality - Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection (ISO 13395:1996)

Polski Komitet Normalizacyjny (PKN)

PN C04576 ArkusZ06-1973 Water and wastewater Tests for nitrogen compounds Determination of nitrite nitrogen by the colorimetric method with sulfanilic acid and 1-naphthylamine

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

Bureau of Indian Standards

IS 3025-34-1-2023 Methods of Sampling and Test (Physical and Chemical) for Water and Wastewater - Part 34 Nitrogen - Section 1 Determination of Various Types of Nitrogen like Ammoniacal, Nitrate, Nitrite and Organic Nitrogen

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