Isotopic nitrogen

Isotopic nitrogen, Total:47 items.

The international standard classification for "Isotopic nitrogen" includes: Soil quality and pedology in general , Fissile materials , Other products of the chemical industry , Measurement of volume, mass, density, viscosity .

The Chinese standard classification for "Isotopic nitrogen" includes: Soil and fertilizer in general , Nuclear material, nuclear fuel and their analytical test method , Industrial gas and chemical gas , Basic standard and general method , Chemical Measurement .

海关总署

SN/T 4675.32-2021 Method for the determination of nitrogen stable isotope ratio in wine for export

Group Standards of the People's Republic of China

T/NAIA 0208-2023 Determination of Stable Isotope Ratio of Carbon and Nitrogen in Lycium Barbarum by Stable Isotope Analyzer Method

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

GB/T 13701-1992 analysis of uranium by single - Standard gas mass - Spectrometer method
GB/T 42490-2023 Soil quality—Determination of total content and isotope ratio of organic carbon and nitrogen of soil and biological samples—Stable isotope ratio mass spectrometry

Professional Standard - Chemical Industry

HG/T 3789-2005 Stable isotope gaseous neon

Fujian Provincial Standard of the People's Republic of China

DB35/T 2006-2021 Chemical conversion method for determination of nitrate nitrogen isotope in water

Inner Mongolia Provincial Standard of the People's Republic of China

DB15/T 975-2016 Detection method of carbon and nitrogen isotope abundance ratio in beef and mutton of livestock products

Professional Standard - Geology

DZ/T 0184.8-1997 Determination of 40Ar -39 Ar isotope geological age and argon isotope ratio
DZ/T 0184.6-1997 Determination of samarium-neodymium isotope geological age and neodymium isotope ratio
DZ/T 0184.4-1997 Determination of rubidium-strontium isotope geological age and strontium isotope ratio in rock and mineral

国家能源局

SY/T 7359-2017 The method for isotopic ratio determination of noble gases by mass spectrometry

工业和信息化部

HG/T 5170-2017 Determination of abundance for stable isotope deuterium labeling compound. Gas chromatography-mass spectrometry

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

JJF 1158-2006 Calibration Specification for Stable Isotope Gas Mass Spectrometer

能源部

SY 5238-1991 Methods for sample preparation of hydrogen, carbon and oxygen isotopes in natural gas

Professional Standard - Petroleum

SY/T 5238-1991 Hydrogen, carbon and oxygen isotope sample preparation method in natural gas

国家文物局

WW/T 0045-2012 Carbon and nitrogen isotope vegetarian analysis of bone sample collection and laboratory operation specifications

RU-GOST R

GOST 23644-1979 Gaseous nitrogen concentrated by stable isotope Nitrogen-15. Specifications

KR-KS

KS K ISO 20921-2023 Textiles — Determination of stable nitrogen isotope ratio in cotton fibres

SCC

DANSK DS/ISO 20921:2019 Textiles – Determination of stable nitrogen isotope ratio in cotton fibres
SN-CEN/TS 15604:2007 Fertilizers — Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
DANSK DS/ISO 15604:2020 Fertilizers – Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
DANSK DS/EN 15604:2009 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
NS-EN 15604:2009 Fertilizers — Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
08/30179332 DC BS EN 15604. Fertilizers. Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
BS DD CEN/TS 15750:2006 Fertilizers. Determination of different forms of nitrogen in fertilizers containing nitrogen only as nitric, ammoniacal and urea nitrogen by two different methods
DIN EN ISO 15604 E:2019 Draft Document - Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen (ISO 15604:2016); German and English version prEN ISO 15604:2019
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
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
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

British Standards Institution (BSI)

BS ISO 20921:2019 Textiles. Determination of stable nitrogen isotope ratio in cotton fibres
14/30313910 DC BS ISO 15604. Fertilizers. Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen

GOSTR

GOST R ISO 15604-2019 Fertilizers. Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen

Spanish Association for Standardization (UNE)

UNE-EN 15604:2009 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen
UNE-CEN/TS 15604:2008 EX Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen

Lithuanian Standards Office

LST EN 15604-2009 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen

European Committee for Standardization (CEN)

EN 15604:2009 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen

Danish Standards Foundation

DS/EN 15604:2009 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen

American Society for Testing and Materials (ASTM)

ASTM D7219-08 Standard Specification for Isotropic and Near-isotropic Nuclear Graphites
ASTM D7219-05 Standard Specification for Isotropic and Near-isotropic Nuclear Graphites

German Institute for Standardization

DIN EN 15604:2009-06 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen; German version EN 15604:2009 / Note: To be replaced by DIN EN ISO 15604 (2019-06).
DIN EN 15604:2009 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen; English version of DIN EN 15604:2009-06

API - American Petroleum Institute

API 4169-1972 THE ISOTOPIC COMPOSITION OF ATMOSPHERIC CARBON MONOXIDE

CEN - European Committee for Standardization

PD CEN/TS 15604:2007 Fertilizers - Determination of different forms of nitrogen in the same sample@ containing nitrogen as nitric@ ammoniacal@ urea and cyanamide nitrogen

International Organization for Standardization (ISO)

ISO 15604:2016 Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen

US-FCR

FCR FED H-08-4 VOL 3 SEC II 673.5-1988 RADIOISOTOPE HOOD, H3, CONSTANT VOLUME EXHAUST CONTROLS

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