Total nitrogen of organic matter

Total nitrogen of organic matter, Total:60 items.

The international standard classification for "Total nitrogen of organic matter" includes: Fertilizers , Workplace atmospheres .

The Chinese standard classification for "Total nitrogen of organic matter" includes: Chemical fertilizer and chemical soil conditioner , Basic standards and general methods on chemical fertilizers , Soil and fertilizer in general , Labor sanitation .

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

GB/T 17419-2018 Foliar fertilizer with organic matter
GB/T 17767.1-2008 Determination of organic-inorganic compound fertilizers - Part 1: Total nitrogen content
GB/T 33891-2017 Organic media for greening
GB/T 17767.1-1999 Determination of total nitrogen content for organic-inorganic compound fertilizers

Hebei Provincial Standard of the People's Republic of China

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

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

Tianjin Provincial Standard of the People's Republic of China

DB12/T 1023-2020 Determination of total nitrogen content in organic fertilizers Dumas combustion method

Occupational Health Standard of the People's Republic of China

GBZ/T 160.78-2004 Methods for determination of organic nitrogen pesticides in the air of workplace

Guangxi Provincial Standard of the People's Republic of China

DB45/T 1846-2018 Technical regulations for organic fertilizer production from cassava processing waste

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

Heilongjiang Provincial Standard of the People's Republic of China

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

Professional Standard - Agriculture

SL/T 788.1-2019 Part 1: Determination of total nitrogen in water quality

Gosstandart of Russia

GOST 26715-1985 Organic fertilizers. Methods for determination of total nitrogen
GOST ISO 10695-2023 Water quality. Determination of individual nitrogen and phosphorus organic compounds. Gas chromatographic methods

Association Francaise de Normalisation

NF EN ISO 20236:2024 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
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

European Committee for Standardization (CEN)

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)
prEN ISO 20236 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/DIS 20236:2023)
prEN 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)
EN ISO 20236:2024 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 20236:2024)

International Organization for Standardization (ISO)

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/DIS 20236:2023 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
ISO 20236:2024 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 co
ISO/CD 20236 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
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

British Standards Institution (BSI)

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
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 20236:2024 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
23/30464382 DC BS EN ISO 20236. 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 ISO 20236:2018 Water quality. Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TN<sub>b</sub>) and dissolved bound nitrogen (DN<sub>b</sub>) after high temperature catalytic oxidative combustion

Ente Nazionale Italiano di Unificazione

UNI 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
UNI 9249:1988 Biomass. Determination of total nitrogen.

Spanish Association for Standardization (UNE)

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)
AENOR UNE-EN ISO 20236:2025 Water quality. Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb), and dissolved bound nitrogen (DNb) after catalytic oxidative combustion at high temperature. (ISO 20236:2024)

Danish Standards Foundation

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
DANSK DS/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)
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...
DS 223:1991 Water analysis. Determination of the sum of nitrite- and nitrate-nitrogen

German Institute for Standardization

DIN EN ISO 20236:2021-09 Draft Document - Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TN<(Index)b>) and dissolved bound nitrogen (DN<(Index)b>) after high temperature catalytic oxidative combustion (ISO 202...
DIN EN ISO 20236:2023 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TN) and dissolved bound nitrogen (DN) after high temperature catalytic oxidative combustion (ISO 20236:2018)
DIN EN ISO 20236 E:2023-10 Draft Document - Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TN<(Index)b>) and dissolved bound nitrogen (DN<(Index)b>) after high temperature catalytic oxidative combustion (ISO/DIS...
DIN EN ISO 20236:2025-05 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 20236:2024)
DIN EN ISO 20236:2023-10 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TN<(Index)b>) and dissolved bound nitrogen (DN<(Index)b>) after high temperature catalytic oxidative combustion (ISO/DIS 2023...
DIN EN ISO 20236 E:2023 Draft Document - Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TN<(Index)b>) and dissolved bound nitrogen (DN<(Index)b>) after high temperature catalytic oxidative combust...
DIN EN ISO 20236:2023-04 Water quality - Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TN<(Index)b>) and dissolved bound nitrogen (DN<(Index)b>) after high temperature catalytic oxidative combustion (ISO 20236:20...

Austrian Standards

OENORM 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)
ONORM M 6284-1988 Water quality; determination of total organic carbon (TOC)

Standards Norway

NS-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)
NS-ISO 8245:1987 Water quality — Guidelines for the determination of total organic carbon (TOC)

GCC Standardization Organization

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...
OS 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...

Kingdom of Bahrain Testing and Metrology Directorate

BH 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...

Japanese Industrial Standards Committee (JISC)

JIS K 0102-2:2022 Testing methods for industrial water and industrial wastewater -- Part 2: Inorganic anions, ammonium ion, organic nitrogen, total nitrogen and total phosphorus

COMMISSION FOR THE STANDARDS, METROLOGY AND QUALITY OF VIETNAM (STAMEQ)

TCVN 6498-1999 Soil quality.Determination of total nitrogen.Modifierd Kejldahl method
TCVN 4050-1985 Soil.Method for the determination of total organic matter

National Standardisation Body (ASRO)

STAS SR ISO 8245:1995 Water qualtty - Guidelines for the determination of total organic carbon (TOC)

Swedish Institute for Standards

SS-ISO 11261:1996 Soil quality - Determination of total nitrogen - Modified Kjeldahl method

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