Is there a national standard for the determination of plant total nitrogen and phosphorus?

Is there a national standard for the determination of plant total nitrogen and phosphorus?, Total:23 items.

The international standard classification for "Is there a national standard for the determination of plant total nitrogen and phosphorus?" includes: Farming and forestry , Fertilizers , Edible oils and fats. Oilseeds .

The Chinese standard classification for "Is there a national standard for the determination of plant total nitrogen and phosphorus?" includes: Basic standards and general methods , Chemical fertilizer and chemical soil conditioner , Soil and fertilizer in general .

Professional Standard - Agriculture

NY/T 2017-2011 Determination of nitrogen,phosphorus and potassium in plants
NY/T 1977-2010 Water-soluble fertilizers--Determination of total nitrogen,phosphorus and potassium content

DB43/T 2139-2021 Determination of Nitrogen and Phosphorus in Plants by Continuous Flow Analysis

GB/T 9823-2008 Inspection of grain and oils - Determination of total nitrogen content in plant oilseeds residues
GB/T 10209.1-2001 Determination of total nitrogen content for monoammonium phosphate and diammonium phosphate(Titrimetric method after distillation)

LY/T 1271-1999 Determination of total nitrogen phosphorus potassium sodium calcium magnesium in forest soil

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

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...
DANSK DS/EN ISO 10695:2000 Water quality - Determination of selected organic nitrogen and phosphorus compounds - Gas chromatographic methods

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

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 10695:2015 Water quality -- Determination of selected organic nitrogen and phosphorus compounds -- Gas chromatographic methods
GSO ISO 10695:2015 Water quality -- Determination of selected organic nitrogen and phosphorus compounds -- Gas chromatographic methods
BH GSO ISO 10695:2016 Water quality -- Determination of selected organic nitrogen and phosphorus compounds -- Gas chromatographic methods

ASTM D8001-16 Standard Test Method for Determination of Total Nitrogen, Total Kjeldahl Nitrogen by Calculation, and Total Phosphorus in Water, Wastewater by Ion Chromatography
ASTM D8001-16e1 Standard Test Method for Determination of Total Nitrogen, Total Kjeldahl Nitrogen by Calculation, and Total Phosphorus in Water, Wastewater by Ion Chromatography

GOST 26715-1985 Organic fertilizers. Methods for determination of total nitrogen
GOST 26717-1985 Organic fertilizers. Methods for determination of total phosphorus

STAS 13136-1993 Edible vegetal oils and fats. Determination of organophosphoric pesticide residues

DIN EN ISO 10695:2000-11 Water quality - Determination of selected organic nitrogen and phosphorus compounds - Gas chromatographic methods (ISO 10695:2000); German version EN ISO 10695:2000

KS I ISO 10695-2006(2016) Water quality－Determination of selected organic nitrogen andphosphorus compounds－Gas chromatographic methods
KS I ISO 10695:2021 Water quality — Determination of selected organic nitrogen and phosphorus compounds — Gas chromatographic methods

KS I ISO 10695-2021 Water quality — Determination of selected organic nitrogen and phosphorus compounds — Gas chromatographic methods

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