ISO/TS 20917:2023
International Standard
Current Edition
·
Approved on
27 July 2023
Fertilizers, soil conditioners and beneficial substances — Determination of ammonium citrate, disodium-EDTA soluble phosphorus and potassium by ICP-OES in inorganic fertilizers
ISO/TS 20917:2023 Files
English
26 Pages
Current Edition
63.56 OMR
ISO/TS 20917:2023 Scope
This document specifies an inductively coupled plasma-optical emission spectrometer (ICP-OES) method for the determination of the ammonium citrate, disodium-etheylenediamine tetraacetic acid (EDTA) soluble phosphorus and potassium content in fertilizer extract solutions.
This document is applicable to all inorganic fertilizer products, whether compound or complex fertilizer products or blends thereof, and straight concentrated fertilizer products.
Best Sellers
GSO 150-2:2013
Gulf Standard
Expiration dates for food products - Part 2 :
Voluntary expiration dates

OS GSO 150-2:2013
GSO 150-2:2013
Omani Standard
Expiration dates for food products - Part 2 :
Voluntary expiration dates


OS GSO 2055-1:2015
GSO 2055-1:2015
Omani Standard
HALAL FOOD - Part 1 : General Requirements


GSO 2055-1:2015
Gulf Technical Regulation
HALAL FOOD - Part 1 : General Requirements

Recently Published
ISO/IEC TR 21221:2025
International Standard
Information technology — Artificial intelligence — Beneficial AI systems


ISO 7730:2025
International Standard
Ergonomics of the thermal environment — Analytical determination and interpretation of thermal comfort using calculation of the PMV and PPD indices and local thermal comfort criteria

ISO 8000-220:2025
International Standard
Data quality — Part 220: Sensor data: Quality measurement

ISO 22412:2025
International Standard
Particle size analysis — Dynamic light scattering (DLS)
