Total nitrogen and total phosphorus spectrophotometry

Total nitrogen and total phosphorus spectrophotometry, Total:80 items.

The international standard classification for "Total nitrogen and total phosphorus spectrophotometry" includes: Animal feeding stuffs , Latex and raw rubber , Ferroalloys , Iron ores .

The Chinese standard classification for "Total nitrogen and total phosphorus spectrophotometry" includes: Livestock and poultry feed and additive , Forestry chemical raw material , Steel and iron alloy analysis method , Analysis methods for toxic substances in water , Iron ore , Soil and fertilizer in general .

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

JJG 1094-2013 Water Quality On-line Analyzers of Total Phosphorus and Total Nitrogen

国家市场监督管理总局、中国国家标准化管理委员会

GB/T 24583.5-2019 Vanadium-nitrogen—Determination of phosphorus content—Bismuth molybdenum blue spectrophotometric method
GB/T 39544-2020 Natural rubber latex concentrate—Determination of total phosphate content—Spectrophotometric method
GB/T 6437-2018 Determination of phosphorus in feeds—Spectrophotometry

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

GB/T 6437-2002 Determination of phosphorus in feed--Spectphotometry
GB/T 6730.24-2006 Iron ores - Determination of total rare earth contents - Chlorophosphonazo mA spectrophotometric method
GB/T 11893-1989 Water quality-Determination of total phosphorus-Ammonium molybdate spectrophotometric method
GB/T 24583.5-2019(英文版) Determination of phosphorus content in vanadium-nitrogen alloys - Bismuth phosphomolybdenum blue spectrophotometric method
GB/T 11894-1989 Water quality--Determination of total nitrogen--Alkaline potassium persulfate digestion-UV spectro photometric method
GB/T 24583.5-2009 Vanadium-Nitrogen alloy—Determination of phosphorus content—The bismuth molybdenum blue spectrophotometry method

Yunnan Provincial Standard of the People's Republic of China

DB53/T 625-2014 Determination of Total Phosphorus in Coking Sewage by Phosphomolybdenum Blue Spectrophotometry

Professional Standard - Urban Construction

CJ/T 78-1999 Municipal sewage.Determination of total phosphorus.Spectrophotometric method
CJ 26.28-1991 Municipal sewage water quality inspection method standard Determination of total phosphorus spectrophotometric method
CJ/T 3018.9-1993 Leachate - determination of total phosphorus - spectrophotometric molybdovanadophosphate method

Professional Standard - Agriculture

GB 6260-1986 Determination of rare earth oxide content in soil--Chlorophosphonazo-p-hippuric acid photometric method
NY/T 30-1986 Determination of rare earth oxide content in soil - Chlorophonazo - P - Hippuric acid photometric method

中华人民共和国环境保护部

GB 11893-1989 Water quality-Determination of total phosphorus-Ammonium molybdate spectrophotometric method

Professional Standard - Environmental Protection

HJ 712-2014 Solid waste - Determination of total phosphorus - Ammonium metamolybdate spectrophotomtric method
HJ 632-2011 Soil-Determination of Total Phosphorus by alkali fusion–Mo-Sb Anti spectrophotometric method
HJ 668-2013 Water quality-Determination of total nitrogen by flow injection analysis（FIA）and N-(1-naphthyl)ethylene diamine dihydrochloride spectrophotometry
HJ 636-2012 Water quality. Determination of total nitrogen. Alkaline potassium persulfate digestion UV spectrophotometric method
HJ 667-2013 Water quality-Determination of total nitrogen by continuous flow analysis(CFA) and N-(1-naphthyl)ethylene diamine dihydrochloride
HJ 671-2013 Water quality-Determination of total phosphorus-Flow injection Analysis (FIA) and Ammonium molybdate spectrophotometry
HJ 670-2013 Water quality-Determination of orthophosphate and total phosphorus-Continuous flow analysis(CFA) and Ammonium molybdate spectrophotometry

Group Standards of the People's Republic of China

T/ZJATA 0025-2024 Water quality Total nitrogen determination Prefabricated chromotropic acid reagent spectrophotometry
T/NAIA 080-2021 Ammonium molybdate spectrophotometric method for measuring total phosphorus in rivers with many sediments
T/ZJATA 0026-2024 Water quality Total phosphorus determination Prefabricated phosphorus molybdenum blue and vanadium molybdenum yellow reagent spectrophotometry

Taiwan Provincial Standard of the People's Republic of China

CNS 14573-2001 Starches and derived products－Determination of total phosphorus content－Spectrophotometric method

工业和信息化部

YB/T 4582.3-2017 Ferrosilicon nitride-Determination of phosphorus content-Bismuth phosphomolybdate blue spectrophotometric method
YB/T 4566.6-2016 Ferrovanadium nitride. Determination of phosphorus content. Molybdobismuthylphosphoric blue spectrophotometric method

Professional Standard - Commodity Inspection

SN/T 3808-2014 Determination of total phosphorus content in diammonium phosphate - Fluorescent spectrometry for X-ray

GSO

GSO ISO 6491:2005 ANIMAL FEEDING STUFFS – DETERMINATION OF TOTAL PHOSPHORUS CONTENT – SPECTROPHOTOMETRIC METHOD
OS GSO ISO 6491:2005 ANIMAL FEEDING STUFFS – DETERMINATION OF TOTAL PHOSPHORUS CONTENT – SPECTROPHOTOMETRIC METHOD
GSO ISO 13730:2014 Meat and meat products -- Determination of total phosphorus content -- Spectrometric method
NB/T 11531-2024 Determination of total phosphorus, ammonia nitrogen and permanganate index in coal mine water - Flow injection-spectrophotometry
OS GSO ISO 3946:2015 Starches and derived products -- Determination of total phosphorus content -- Spectrophotometric method
GSO ISO 3946:2015 Starches and derived products -- Determination of total phosphorus content -- Spectrophotometric method
OS GSO ISO 19043:2017 Natural rubber latex concentrate -- Determination of total phosphate content by spectrophotometric method
GSO ISO 19043:2017 Natural rubber latex concentrate -- Determination of total phosphate content by spectrophotometric method

Danish Standards Foundation

DS 292:1985 Water analysis. Total phosphor. Photometric method
DS 291:1985 Water analysis. Phosphate. Photometric method
DS/EN ISO 3946:1995 Starches and derived products - Determination of total phosphorus content - Spectrophometric method
DS 285:1990 Water qulity. Total arsenic content. Spectrophotometric method

RU-GOST R

GOST 31980-2012 Milk. Spectrometric method for determination of total phosphorus content
GOST 31584-2012 Milk. Spectrophotometric method for determination of total phosphorus content
GOST 28902-1991 Animal feeding stuffs. Determination of total phosphorus content. Spectrophotometric method
GOST R 51482-1999 Meat and meat products. Spectrophotometric method for determination of total phosphorus content
GOST 32009-2013 Meat and meat products. Spectrophotometric method for determination of total phosphorous content

Association Francaise de Normalisation

NF V18-106:1980 Animal feeding stuffs. Determination of total phosphorus content. Spectrophotometric method.
NF A06-555:2010 Steel - Determination of nitrogen content - Spectrophotometric method.
NF V18-106*NF ISO 6491:2011 Animal feeding stuffs - Determination of phosphorus content - Spectrophotometric method
NF V03-613*NF EN ISO 3946:1994 Starches and derived products. Determination of total phosphorus content. Spectrophotometric method.
NF EN ISO 3946:1994 Starches and derived products - Determination of total phosphorus content - Spectrophotometric method

International Organization for Standardization (ISO)

ISO 6491:1980 Animal feeding stuffs; Determination of total phosphorus content; Spectrophotometric method
ISO 3946:1982 Starches and derived products; Determination of total phosphorus content; Spectrophotometric method
ISO 19043:2023 Natural rubber latex concentrate — Determination of total phosphate content by spectrophotometric method
ISO 6676:1981 Acid-grade fluorspar — Determination of total phosphorus content — Molybdophosphate photometric method
ISO 19043:2015 Natural rubber latex concentrate - Determination of total phosphate content by spectrophotometric method

British Standards Institution (BSI)

BS EN ISO 3946:1994 Starches and derived products - Determination of total phosphorus content - Spectrometric method
22/30446379 DC BS ISO 19043 Natural rubber latex concentrate. Determination of total phosphate content by spectrophotometric method
BS ISO 19043:2015 Natural rubber latex concentrate. Determination of total phosphate content by spectrophotometric method

CZ-CSN

CSN ISO 9438:1992 Metallurgical-grade fluorspar - Determination of total phosphorus content - Reduced molybdophosphate spectrometric method
CSN 65 1025 Cast.10-1989 Sulphuric acid for industrial use. pectrophotometric method for the etermination of total nitrogen xides
CSN ISO 6676:1992 Acid-grade fluorspar - Determination of total phosphorus content - Molybdophosphate photometric method

Korean Agency for Technology and Standards (KATS)

KS H ISO 3946-2008(2018) Starches and derived products－Determination of total phosphorus content－Spectrophotometric method
KS H ISO 3946-2023 Starches and derived products－Determination of total phosphorus content－Spectrophotometric method
KS H ISO 3946:2008 Starches and derived products－Determination of total phosphorus content－Spectrophotometric method

SCC

BS 5766-3:1981 Methods for analysis of animal feeding stuffs-Determination of total phosphorus content (spectrophotometric method)
DANSK DS/EN ISO 3946:1994 Starches and derived products - Determination of total phosphorus content - Spectrophometric method
SPC GB/T 24583.5-2019 Vanadium-nitrogen -- Determination of phosphorus content -- Bismuth molybdenum blue spectrophotometric method (TEXT OF DOCUMENT IS IN CHINESE)
NS-EN ISO 3946:1994 Starches and derived products — Determination of total phosphorus content — Spectrophotometric (ISO 3946:1982)

KR-KS

KS H ISO 3946-2008(2023) Starches and derived products－Determination of total phosphorus content－Spectrophotometric method

SE-SIS

SIS SS 02 81 02-1992 Total phosphorous in sewage water — Spectrometric method

GOST

GOST 31110-2002 Meat and meat products. Spectrophotometric method for determining the mass fraction of total phosphorus

AT-ON

ONORM DIN 10324-1993 Determination of the total phosphorus content of cheese and processed cheese - Spectrometric method

German Institute for Standardization

DIN ISO 3946:1986 Starches and derived products; determination of the total phosphorus content; spectrophotometric method; identical with ISO 3946, edition 1982

BE-NBN

NBN-EN ISO 3946:1994 Starches and derived products - Determination of total phosphorus content - Spectrophotometric method (ISO 3946:1982)

American National Standards Institute （ANSI)

BS ISO 19043:2023 Natural rubber latex concentrate. Determination of total phosphate content by spectrophotometric method (British Standard)

AENOR

UNE-EN ISO 3946:1995 STARCHES AND DERIVED PRODUCTS. DETERMINATION OF TOTAL PHOSPHORUS CONTENT. SPECTROPHOTOMETRIC METHOD. (ISO 3946:1982).

Lithuanian Standards Office

LST EN ISO 3946:2000 Starches and derived products - Determination of total phosphorus content - Spectrophotometric method (ISO 3946:1982)

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