GB/T 22923-2008 (English Version) PDF

Standard No.: GB/T 22923-2008
Language: Chinese, Available in English version
Release Date: 2008
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 22923-2008

Scope: This standard specifies the method for determining the content of nitrogen, phosphorus and potassium in fertilizers using an automatic analyzer. This standard applies to the determination of nitrogen, phosphorus and potassium content in fertilizers. The flow analyzer method is not suitable for fertilizers containing organic matter, and the determination of nitrogen content is not suitable for fertilizers with nitrogen content greater than 40%.

GB/T 22923-2008 Referenced Document

HG/T 2843 Chemical fertilezer products-standard volumetrie,standard,reagent and indicator solutions for chemical analysis

2008 GB/T 22923-2008 Determination of nitrogen,phosphorus and potassium for fertilizers by auto analyzer