chemical total nitrogen
chemical total nitrogen, Total:7 items.
The international standard classification for "chemical total nitrogen" includes: Chemical reagents .
The Chinese standard classification for "chemical total nitrogen" includes: Chemical reagent in general .
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 609-2006 Chemical Reagent - General Method for the Determination of Total Nitrogen
- GB/T 609-1988 Chemical reagent-General method for the determination of total nitrogen
- GB/T 609-2018 Chemical reagent—General method for the determination of total nitrogen
Professional Standard - Agriculture
- GB 609-1988 General method for the determination of total nitrogen content of chemical reagents
- GB/T 609-2018(XG1-2024) Chemical Reagents General Method for Determination of Total Nitrogen
British Standards Institution (BSI)
- BS 7755-3.7:1995 Soil quality. Chemical methods. Determination of total nitrogen. Modified Kjeldahl method
Association Francaise de Normalisation
- NF T20-295:1968 CHEMICAL ANALYSIS OF SULPHURIC ACID AND OLEUM. DETERMINATION OF TOTAL NITROGEN.
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