total nitrogen chemistry

total nitrogen chemistry, Total:109 items.

The international standard classification for "total nitrogen chemistry" includes: Chemical reagents , Metalliferous minerals , Protection against dangerous goods , Abrasives , Refractories .

The Chinese standard classification for "total nitrogen chemistry" includes: General inorganic reagent , Chemical reagent in general , Iron ore , Heavy metal ore , Marking, packaging, transport and storage in general , Grinding material and apparatus , Chemical Measurement , Special refractory .

Professional Standard - Chemical Industry

HG/T 3438-2013 Chemical Reagent - Devarda’s Alloy
HG/T 3438-1999 Chemical reagent - Devardas Alloy

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

GB/T 6730.24-1986 Methods for chemical analysis of iron ores; The arsenazo 3 photometric method for the determination of rare earth elements content
GB/T 27854-2011 Chemicals—Soil microorganisms—Nitrogen transformation test
GB/T 609-2018 Chemical reagent—General method for the determination of total nitrogen
GB/T 609-2006 Chemical Reagent - General Method for the Determination of Total Nitrogen
GB/T 608-1988 Chemical reagent--General method for the determination of nitrogen
GB/T 3257.15-1999 Methods for chemical analysis of bauxite--Determination the total content of rare earth oxide--Tribromo-arsenazo photometric method
GB/T 609-1988 Chemical reagent-General method for the determination of total nitrogen

Professional Standard - Agriculture

GB 608-1988 General method for chemical reagent nitrogen determination
GB/T 609-2018(XG1-2024) Chemical Reagents General Method for Determination of Total Nitrogen
GB 609-1988 General method for the determination of total nitrogen content of chemical reagents

Taiwan Provincial Standard of the People's Republic of China

CNS 7721-1981 Triphenyltetrazolium Chloride
CNS 7807-1981 Chemical Reagent (Azobenzene)
CNS 8142-1981 Chemical Reagent (0 - Phenanthroling Hydrochloride)
CNS 8991-1982 Chemical Reagent(Ammonium Salt Nitrates and Total Nitrogen Determination)
CNS 10509-1983 Methods of Chemical Analysis for Nitrogen in Ferrochromium
CNS 12786-1990 Method of Chemical Analysis for Silicon Nitride Powders

Military Standard of the People's Republic of China-General Armament Department

GJB 507-1988 Boron nitride chemical analysis method

Chongqing Provincial Standard of the People's Republic of China

DB50/T 833-2017 Determination of nitrogen oxides in ambient air (nitrogen monoxide and nitrogen dioxide) by chemiluminescence

Professional Standard - Machinery

JB/T 7994-1999 Chemical analysis methods of cubic boron nitride

Hebei Provincial Standard of the People's Republic of China

DB13/T 1224-2010 Determination method of total nitrogen in organic chemical products

Professional Standard - Non-ferrous Metal

YS/T 575.14-2006 Methods for chemical analysis of bauxite -- Determination the total content of rare earth oxide -- Tribromo-arsenazo photometric method

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

JJG 801-2004 Verification Regulation of Chemiluminescent NO/NOx Analyzers

Professional Standard - Aviation

HB 5218.14-1995 Aluminum Alloy Chemical Analysis Method Tribromoarsine Spectrophotometric Determination of Total Rare Earth in Cerium Group

Professional Standard - Aerospace

QJ 2539.3-1993 Gas Nitriding of Chemical Heat Treatment Steel

Professional Standard - Ferrous Metallurgy

YB/T 174.1-2000 Chemical analysis for silicon nitride bonded silicon carbide product. Determination of silicon nitride content. High pressure dissolve specimen method

Group Standards of the People's Republic of China

T/QAS 071-2021 Determination of total nitrogen in brine Kjeldahl method

British Standards Institution (BSI)

BS 7755-3.7:1995 Soil quality. Chemical methods. Determination of total nitrogen. Modified Kjeldahl method
BS 5551-4.1.3:1986 Fertilizers. Chemical analysis. Determination of nitrogen. Method for determination of total nitrogen content (titrimetric method after distillation)
DD ENV 12260-1996 Water quality. Determination of nitrogen. Determination of bound nitrogen, after combustion and oxidation to nitrogen dioxide, using chemiluminescence detection
BS EN ISO 20236:2021 Water quality. Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TN _b ) and dissolved bound nitrogen (DN _b ) after high temperature catalytic oxidative combustion
BS EN ISO 20236:2021(2022) Water quality — Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion

AT-ON

ONORM L 1095-2002 Chemical analyses of soils - Determination of total nitrogen by dry combustion

American Society for Testing and Materials (ASTM)

ASTM RR-D19-1194 2016 D8083-Test Method for Total Nitrogen, and Total Kjeldahl Nitrogen (TKN) by Calculation, in Water by High Temperature Catalytic Combustion and Chemiluminescence Detection
ASTM D8083-16(2023) Standard Test Method for Total Nitrogen, and Total Kjeldahl Nitrogen (TKN) by Calculation, in Water by High Temperature Catalytic Combustion and Chemiluminescence Detection
ASTM D8083-16 Standard Test Method for Total Nitrogen, and Total Kjeldahl Nitrogen (TKN) by Calculation, in Water by High Temperature Catalytic Combustion and Chemiluminescence Detection
ASTM D5176-20 Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
ASTM D5176-91(2003) Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
ASTM D5176-91(1995) Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
ASTM D5176-08 Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection
ASTM D5176-08(2015) Standard Test Method for Total Chemically Bound Nitrogen in Water by Pyrolysis and Chemiluminescence Detection

Association Francaise de Normalisation

NF T20-295:1968 CHEMICAL ANALYSIS OF SULPHURIC ACID AND OLEUM. DETERMINATION OF TOTAL NITROGEN.
NF U42-147*NF EN 15561:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide containing nitrate
NF EN 15561:2009 Fertilizers - Determination of total nitrogen in nitrated calcium cyanamide
NF M07-058:1992 Produits pétroliers - Dosage de l'azote total dans les distillats pétroliers - Méthode par combustion et détection par chimioluminescence.
NF EN ISO 20236:2021 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (COD), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after catalytic oxidative combustion at high temperature
NF T90-236*NF EN ISO 20236:2021 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion

CZ-CSN

CSN 83 0540 Cast.13-1984 Chemical and physical analysis of waste water Determination of organic and total nitrogen
CSN 42 0550 Cast.9-1984 Chemical analysis of ferroalloys. Analysis of ferrochromium. Determination of nitrogen
CSN 65 4836-1983 Minerál fertilizers Methode for determination of total nitrogen content

SCC

DANSK DS/ISO 21793:2020 Water quality – Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb), dissolved bound nitrogen (DNb), total bound phosphorus (TPb) and dissolved bound phosphorus (DPb) after wet chemical catalysed ozon...
DIN 54387-3:2016 Testing of ceramic raw and basic materials - Chemical analysis of boron carbide, boron nitride, other metal borides and elemental boron - Part 3: Determination of the non-metallic major and minor constituents total carbon, total oxygen and total nitrog...
DIN EN ISO 21068-2 E:2023 Draft Document - Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 2: Determination of volatile components, total carbon, free carbon, silicon carbide, total and...
NS-EN ISO 21068-2:2024 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 2: Determination of volatile components, total carbon, free carbon, silicon carbide, total and free silicon, fr...
SN-CEN/TS 15560:2007 Fertilizers — Determination of total nitrogen in calcium cyanamide nitrate free
AENOR UNE-EN 15560:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
NS-EN 15560:2009 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
DANSK DS/EN 15560:2009 Fertilizers – Determination of total nitrogen in calcium cyanamide nitrate free
BS DD ENV 12260:1996 Water quality. Determination of nitrogen. Determination of bound nitrogen, after combustion and oxidation to nitrogen dioxide, using chemiluminescence detection
DANSK DS/ISO 20236:2018 Water quality – Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion
NS 4743:1993 Water analysis — Determination of total nitrogen after oxidation by peroxodisulphate

GSO

GSO ISO 21793:2024 Water quality — Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb), dissolved bound nitrogen (DNb), total bound phosphorus (TPb) and dissolved bound phosphorus (DPb) after wet chemical catalysed ozon...
GSO 198:1994 CHEMICAL ANALYSIS OF CARBON STEEL – DETERMINATION OF NITROGEN

VDI - Verein Deutscher Ingenieure

VDI 2456 Blatt 6-1978 Gaseous emission measurement; determination of the sum of nitrogen monoxide and nitrogen dioxide as nitrogen monoxide by use of a converter
VDI 2456-2003 Stationary source emissions - Determination of the total of nitrogen monoxide and nitrogen dioxide - Ion chromatography method
VDI 2456 Blatt 2-1973 Gaseous emission measurement; determination of the total sum of nitrogen monoxide and nitrogen dioxide; acidimetric titration method
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

Indonesia Standards

SNI 19-1501-1989 Test methods for total nitrogen oxide in air

International Organization for Standardization (ISO)

ISO/DIS 21068-2 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon — Part 2: Determination of volatile components, total carbon, free carbon, silicon carbide, total and free silicon, free
ISO 21793:2020 Water quality — Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb), dissolved bound nitrogen (DNb), total bound phosphorus (TPb) and dissolved boun
ISO/TR 11905-2:1997 Water quality - Determination of nitrogen - Part 2: Determination of bound nitrogen, after combustion and oxidation to nitrogen dioxide, using chemiluminescence detection
ISO 20236:2018 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion
ISO/FDIS 21068-3:2024 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon
ISO/FDIS 21068-1:2023 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon
ISO/FDIS 21068-2:2024 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon
ISO/FDIS 21068-4:2024 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon

Standard Association of Australia （SAA）

ISO 21068-2:2024 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 2: Determination of volatile components, total carbon, free carbon, silicon carbide, total and free silico...

TR-TSE

TS 974-1971 DETERMINATION OF NITROGEN, TOTAL SULPHUR CHLORINE AND PHOSPHORUS ?N COKE

Korean Agency for Technology and Standards (KATS)

KS L 9310-2017(2022) Methods for chemical analysis of aluminum nitride powders
KS L 9310-2017 Methods for chemical analysis of aluminum nitride powders
KS L 9310-2022 Methods for chemical analysis of aluminum nitride powders
KS I ISO 11905-2-2008(2013) Water quality－Determination of nitrogen－Part 2：Determination of bound nitrogen, after combustion and oxidation to nitrogen dioxide, using chemiluminescence detection
KS I ISO 11905-2:2008 Water quality-Determination of nitrogen-Part 2:Determination of bound nitrogen, after combustion and oxidation to nitrogen dioxide, using chemiluminescence detection

German Institute for Standardization

DIN EN ISO 21068-2:2023-07 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 2: Determination of volatile components, total carbon, free carbon, silicon carbide, total and free silicon, fr...
DIN EN 15560:2021 Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free; German and English version prEN 15560:2021

BSI

BS EN ISO 21068-2:2024 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon-Determination of volatile components, total carbon, free carbon, silicon carbide, total and free silicon, free and sur...
DANSK DS/ISO 21068-2:2024 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon – Part 2: Determination of volatile components, total carbon, free carbon, silicon carbide, total and free silicon, ...

PL-PKN

PN H04222-1974 Chemical analysis of ferroalloys Ferrochromium nitriding
PN H04221-1968 Chemical analysis of ?erro-alloys Ferro-manganese nitriding
PN Z04092-05-1990 Air purity protection Tests for nitric acid and nitrogen oxides Determination of nitrogen oxide, dioxide and total nitrogen oxides in waste gases (emission)

HU-MSZT

MNOSZ 448-27.lap-1955 Determination of total nitrogen water

European Committee for Standardization (CEN)

FprEN ISO 21068-2 Chemical analysis of raw materials and refractory products containing silicon-carbide, silicon-nitride, silicon-oxynitride and sialon - Part 2: Determination of volatile components, total carbon, free carbon, silicon carbide, total and free silicon, free
DD ENV 12 260-1996 Water Quality - Determination of Nitrogen - Determination of Bound Nitrogen, After Combustion and Oxidation to Nitrogen Dioxide, Using Chemiluminescence Detection
EN ISO 20236:2021 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion (ISO 20236:2018)

YU-JUS

JUS H.G8.083-1983 Reagents. Sodium chloride. Determination of total nitrogen content. Colorimetric method
JUS H.G8.435-1990 Reaqents. Potassium iodide. Determination of total nitroaen content. Colorimetric method
JUS H.G8.055-1983 Reagents. Hydrogen peroxide. Determination of total nitrogen content. Colorimetric method
JUS H.G8.104-1984 Reagents. Potassium chloride. Determination of total nitrogen content. Colorimetric method
JUS H.G8.415-1991 Reagents. So?ium hydroxide. Determination of total nitrogen content. Colorimetric method
JUS H.G8.290-1987 Reagents. Copper(ll) oxide. Determination of total nitrogen content. Colorimetric method

VN-TCVN

TCVN 6624-2-2000 Water quality.Determination of nitrogen.Part 1: Determination of bound nitrogen, after combustion and oxidation to nitrogen dioxide, using chemiluminescence detection

Spanish Association for Standardization (UNE)

UNE-CEN/TS 15560:2007 EX Fertilizers - Determination of total nitrogen in calcium cyanamide nitrate free
UNE-EN ISO 20236:2022 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb) and dissolved bound nitrogen (DNb) after high temperature catalytic oxidative combustion (ISO 20236:2018)

RO-ASRO

SR ISO 5315:1984 Fertilizers. Determination of totai nitrogen content.Titrimetric method after distilation

CU-NC

NC 24-66-1986 Inorganic Chemical Products Nitrogen. Quality Specifications

CEN - European Committee for Standardization

PREN 12698-2005 Chemical analysis of nitride bonded silicon carbide refractories

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