This standard specifies the determination methods for total nitrogen, ammonia nitrogen and nitrate nitrogen of imported and exported chemical fertilizers. This standard applies to various imports and exports of nitrogen-containing chemical fertilizers.
SN/T 0736.5-1999 history
2010SN/T 0736.5-2010 Test method of import and export fertilizers.Part 5: Determination of nitrogen content
1999SN/T 0736.5-1999 Chemical analysis of fertilizers for import and export.Determination of nitrogen content