Total nitrogen

Total nitrogen, Total:96 items.

The international standard classification for "Total nitrogen" includes: Other products of the chemical industry , Water quality , Fertilizers , Textiles in general .

The Chinese standard classification for "Total nitrogen" includes: Water treatment agent , Analysis methods for exhaust emission pollutants , Analysis methods for toxic substances in water , Soil and fertilizer in general , Basic standards and general methods .

Professional Standard - Chemical Industry

HGB 3096-1959 Sudan I (Benzophenol)
HG/T 3824-2014 Benzotriazole
HG/T 3925-2014 Tolyltriazole
HG/T 3824-2006 Benzotriazole
HGB 3085-1959 Dimethyl Yellow (Dimethylaminoazobenzene)
HG/T 3925-2007 Tolyltriazole
HGB 3470-1962 p-aminoazobenzene

Taiwan Provincial Standard of the People's Republic of China

CNS 7721-1981 Triphenyltetrazolium Chloride
CNS 1689-1965 p-Dimethylaminoazobenzene (Butter Yellow Methyl Yellow)
CNS 7807-1981 Chemical Reagent (Azobenzene)

Professional Standard - Environmental Protection

HJ 550-2009 Water quality - Determination of cobalt - 5-CI-PADAB spectrophotometry
HJ/T 64.3-2001 Stationary source emission -- Determination of cadmium p-Azobenzenediazoaminazobenzene sulfonic acid spectrophotometric method

Group Standards of the People's Republic of China

T/NAIA 044-2021 Urine Total Nitrogen Determination in Livestock Kjeldahl Method
T/QAS 071-2021 Determination of total nitrogen in brine Kjeldahl method

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

Professional Standard - Agriculture

758药典二部-2010 Chlorambucil Part I
SL/T 788.1-2019 Part 1: Determination of total nitrogen in water quality
984药典二部-2020 Chlorambucil Part I
NY/T 2542-2014 Fertilizers. Determination of total nitrogen nitrogen content
928药典二部-2015 Chlorambucil Part I

Jilin Provincial Standard of the People's Republic of China

DB22/T 1932-2013 Determination method of total nitrogen content in peat (Kjeldahl method)

Jiangsu Provincial Standard of the People's Republic of China

DB32/T 4541-2023 Sea water quality evaluation guide for total nitrogen and total phosphorus

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

GB/T 23344-2009(英文版) Textiles-Determination of 4 aminoazobenzene
GB/T 23344-2009 Textiles - Determination of 4-aminoazobenzene

Heilongjiang Provincial Standard of the People's Republic of China

DB23/T 3310-2022 Water quality total nitrogen monitoring technical specification

Japanese Industrial Standards Committee (JISC)

JIS K 8037:1961 Azobenzene
JIS K 9531:1976 Xylylazo violet II (2-(2-hydroxy-3-(2,4-xylylcarbamoyl)-1-naphthylazo)-phenol)

VDI - Verein Deutscher Ingenieure

VDI 2456 Blatt 1-1973 Gaseous emission measurement; determination of the total sum of nitrogen monoxide and nitrogen dioxide; phenoldisulfonic acid method
VDI 2456 Blatt 10-1990 Gaseous emission measurement; analytical determination of the sum of nitrogen monoxide and nitrogen dioxide; dimethylphenol method
VDI 2456 Blatt 10-1989 Gaseous emission measurement; analytical determination of the sum of nitrogen monoxide and nitrogen dioxide; dimethylphenol method

CZ-CSN

CSN 68 7137-1973 Cupferron (N-Nitroso-N-phenylhyclroxylamine ammotiium salt)
CSN 68 4124-1980 Determination of small mounts of total nitrogen

SCC

MIL MIL-D-82885-1993 DIAZODINITROPHENOL
NS-EN 15750:2009 Fertilizers — Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
SN-CEN/TS 15750:2008 Fertilizers — Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
DANSK DS/EN 15750:2009 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
AENOR UNE-EN 15750:2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
BS DD CEN/TS 15750:2008 Fertilizers. Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
DIN EN 15750 E:2009 Draft Document - Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods; German version prEN 15750:2009
NS 4745:1991 Water analysis - Determination of the sum of nitrite nitrogen and nitrate nitrogen
DANSK DS/EN 15478:2009 Fertilizers - Determination of total nitrogen in urea
SN-CEN/TS 15478:2006 Fertilizers — Determination of total nitrogen in urea
NS-EN 15478:2009 Fertilizers — Determination of total nitrogen in urea

HU-MSZT

MNOSZ 448-27.lap-1955 Determination of total nitrogen water
MSZ 318/18-1981 Determination of total nitrogen in sludge test

IN-BIS

IS 7661-1975 Specification for 4-aminoazobenzene

Association Francaise de Normalisation

NF V04-211:1971 MILK. DETERMINATION OF TOTAL NITROGEN CONTENT. (KJELDAHL METHOD).
NF U42-147*NF EN 15561:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrate
NF EN 15478:2009 Fertilizers - Determination of total nitrogen in urea

PL-PKN

PN C04576 ArkusZ14-1973 Water and w?sie water Tes?s for nitrogen Calcula?ion of to?al nitrogen
PN C04576 ArkusZ12-1973 Water and waste water Tests for nitrogenDetermination of total nitrogen of Kjeldahl
PN Z04092 Arkusz 01-1974 Air purity protectlon Tests tor nitric acid and nitrogen oxides Determination of nitric acid and total amount of nitric acid and nitrogen oxides in the work station by the colorimetric method with phenoldisulphonic acid

U.S. Military Regulations and Norms

ARMY MIL-D-51411 (1)-1989 DYE, YELLOW, THIODIPHENYL-4,4'-DIAZO-BIS-SALICYLIC ACID
ARMY MIL-D-51411 VALID NOTICE 2-2004 DYE, YELLOW, THIODIPHENYL-4,4'-DIAZO-BIS-SALICYLIC ACID
ARMY MIL-D-51411-1974 DYE, YELLOW, THIODIPHENYL-4,4'-DIAZO-BIS-SALICYLIC ACID
ARMY MIL-D-51411 NOTICE 1-1996 DYE, YELLOW, THIODIPHENYL-4,4'-DIAZO-BIS-SALICYLIC ACID
ARMY MIL-D-51412 (1)-1989 DYE, RED, 2, 5, 2', 5' TETRAMETHYLTRIPHENYLMETHANE-4, 4'-DIAZO-BIS- BETAHYDROXYNAPHTHOIC ANILIDE
ARMY MIL-D-51412-1974 DYE, RED, 2, 5, 2', 5' TETRAMETHYLTRIPHENYLMETHANE-4, 4'-DIAZO-BIS- BETAHYDROXYNAPHTHOIC ANILIDE

NL-NEN

NEN 6642-1992 Water-Calculation of total nitrogen content

VN-TCVN

TCVN 6498-1999 Soil quality.Determination of total nitrogen.Modifierd Kejldahl method

American Society for Testing and Materials (ASTM)

ASTM D3590-02 Standard Test Methods for Total Kjeldahl Nitrogen in Water
ASTM D3590-17 Standard Test Methods for Total Kjeldahl Nitrogen in Water
ASTM D3590-11 Standard Test Methods for Total Kjeldahl Nitrogen in Water

Association of Official Analytical Chemists (AOAC)

AOAC Official Method 2001.14 Determination of total nitrogen in cheese
AOAC 991.20 AOAC Official Method 991.20 Nitrogen (Total) in Milk Kjeldahl Methods

German Institute for Standardization

DIN EN 15750:2010-02 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods; German version EN 15750:2009
DIN EN 15478:2009 Fertilizers - Determination of total nitrogen in urea; English version of DIN EN 15478:2009-04
DIN EN 15478:2009-04 Fertilizers - Determination of total nitrogen in urea; German version EN 15478:2009
DIN CEN/TS 15750:2008 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods; German version CEN/TS 15750:2008

Danish Standards Foundation

DS 223:1991 Water analysis. Determination of the sum of nitrite- and nitrate-nitrogen
DS/EN 15750:2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
DS/EN 15478:2009 Fertilizers - Determination of total nitrogen in urea

British Standards Institution (BSI)

BS ISO 23697-1:2023 Water quality. Determination of total bound nitrogen (ST-TNb) in water using small-scale sealed tubes - Dimethylphenol colour reaction
BS EN 15478:2009 Fertilizers - Determination of total nitrogen in urea
BS EN 15750:2010 Fertilizers. Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
BS EN 15750:2009 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods

PT-IPQ

NP 3646-1987 fertilizer. Measurement of total nitrogen content

Korean Agency for Technology and Standards (KATS)

KS I ISO 11261-2008(2021) Soil quality－Determination of total nitrogen－Modified Kjeldahl method
KS I ISO 11261-2008(2018) Soil quality－Determination of total nitrogen－Modified Kjeldahl method
KS I ISO 11261:2008 Soil quality-Determination of total nitrogen-Modified Kjeldahl method

Spanish Association for Standardization (UNE)

UNE-EN 15750:2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
UNE 77318:2001 Soil quality. Determination of total nitrogen. Modified Kjeldahl method.
UNE-EN 15478:2009 Fertilizers - Determination of total nitrogen in urea
UNE-CEN/TS 15478:2007 EX Fertilizers - Determination of total nitrogen in urea

GOSTR

GOST R 58596-2019 Soils. Methods for determination of total nitrogen

South African Bureau of Standard

SANS 5922:1978 Total moisture content of coal (nitrogen-oven method)

RU-GOST R

GOST 26715-1985 Organic fertilizers. Methods for determination of total nitrogen

Lithuanian Standards Office

LST EN 15750-2010 Fertilizers - Determination of total nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
LST EN 15478-2009 Fertilizers - Determination of total nitrogen in urea

International Organization for Standardization (ISO)

ISO 11261:1995 Soil quality - Determination of total nitrogen - Modified Kjeldahl method

Indonesia Standards

SNI 13-4721-1998 Methods for determination of total nitrogen content in soils
SNI 06-6323-2000 Determination of total nitrogen content in peat
SNI 4146-2013 Method for determination of total nitrogen content in sediment by Kjeldahl titration method

CEN - European Committee for Standardization

PD CEN/TS 15478:2006 Fertilizers - Determination of total nitrogen in urea

Standard Association of Australia （SAA）

AS 1871.11:1976 List of methods for examination of waters Nitrogen (total Kjeldahl incl. ammoniacal)

European Committee for Standardization (CEN)

EN 15478:2009 Fertilizers - Determination of total nitrogen in urea