How much nitrogen is in the soil
How much nitrogen is in the soil, Total:36 items.
The international standard classification for "How much nitrogen is in the soil" includes: Soil quality and pedology in general .
The Chinese standard classification for "How much nitrogen is in the soil" includes: Soil and fertilizer in general .
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- 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
Tianjin Provincial Standard of the People's Republic of China
- DB12/T 1270-2023 Determination of cracked nitrogen in soil
Indonesia Standards
- SNI 13-4721-1998 Methods for determination of total nitrogen content in soils
Gosstandart of Russia
- GOST R 53219-2008 Soil quality. Determination of nitrogen in air-dry soils using calcium chloride solution
- GOST 26107-1984 Soils. Methods for determination of total nitrogen
COMMISSION FOR THE STANDARDS, METROLOGY AND QUALITY OF VIETNAM (STAMEQ)
- TCVN 7373-2004 Soils quality.Index values of total nitrogen content in the soils of Vietnam
- TCVN 6643-2000 Soil quality.Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant
National Standardisation Body (ASRO)
- STAS 7184/2-1985 SOILS Nitrogen content determination
- STAS 7184/21-1982 SOILS Humus content determination
Association Francaise de Normalisation
- NF X31-115:2001 Soil quality - Sampling and storage of soil samples in view of determination of mineral nitrogen on fresh soil.
- NF X31-111*NF ISO 11261:1995 Soil quality. Determination of total nitrogen. Modified kjeldahl method.
- NF X31-418*NF ISO 13878:1998 Soil quality. Determination of total nitrogen content by dry combustion ("elemental analysis").
German Institute for Standardization
- DIN ISO 14255:1998 Soil quality - Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant (ISO 14255:1998)
- DIN ISO 13878:1998 Soil quality - Determination of total nitrogen content by dry combustion ("elemental analysis") (ISO 13878:1998)
- DIN ISO 14255:1998-11 Soil quality - Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant (ISO 14255:1998)
GCC Standardization Organization
- GSO ISO 13878:2014 Soil quality -- Determination of total nitrogen content by dry combustion ("elemental analysis")
- GSO ISO 14255:2013 Soil quality - Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant
Korean Agency for Technology and Standards (KATS)
- KS I ISO 13878-2023 Soil quality－Determination of total nitrogen content by dry combustion(“elemental analysis”)
- KS I ISO 14255-2023 Soil quality－Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant
- KS I ISO 13878-2009(2023) Soil quality－Determination of total nitrogen content by dry combustion(“elemental analysis”)
- KS I ISO 14255:2009 Soil quality－Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant
- KS I ISO 13878:2009 Soil quality－Determination of total nitrogen content by dry combustion(“elemental analysis”)
- KS I ISO 14255-2009(2019) Soil quality－Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant
- KS I ISO 13878-2009(2019) Soil quality－Determination of total nitrogen content by dry combustion(“elemental analysis”)
Bureau of Indian Standards
- IS 14684-1999 Determination of Nitrogen and Nitrogenous Compounds in Soils
Kingdom of Bahrain Testing and Metrology Directorate
- BH GSO ISO 13878:2016 Soil quality -- Determination of total nitrogen content by dry combustion ("elemental analysis")
International Organization for Standardization (ISO)
- ISO 13878:1998 Soil quality - Determination of total nitrogen content by dry combustion ("elemental analysis")
- ISO 14255:1998 Soil quality - Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant
Swedish Institute for Standards
- SS-ISO 13878:1999 Soil quality - Determination of total nitrogen content by dry combustion ("elemental analysis")
- SS-ISO 14255:1999 Soil quality - Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant
The Directorate General of Specifications and Metrology (DGSM)
- OS GSO ISO 14255:2013 Soil quality - Determination of nitrate nitrogen, ammonium nitrogen and total soluble nitrogen in air-dry soils using calcium chloride solution as extractant
Spanish Association for Standardization (UNE)
- UNE 77306:1999 SOIL QUALITY. DETERMINATION OF NITRATE NITROGEN, AMMONIUM NITROGEN AND TOTAL SOLUBLE NITROGEN IN AIR-DRY SOIL USING CALCIUM CHLORIDE SOLUTION AS EXTRACTANT.
- UNE 103206:2019 Determination of gypsum content in soils
- UNE 103206:2006 Determination of gypsum content in soils
British Standards Institution (BSI)
- BS EN ISO 23753-2:2011 Soil quality. Determination of dehydrogenase activity in soils. Method using iodotetrazolium chloride (INT)
Netherlands Institute for Standardization
- NEN 5754-1992 Soil - Determination of organic matter content in soil as loss-on-ignition
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