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National Ammonium Chloride Standard GBT2946-2018 will be implemented from December 1st

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Time: 2018-12-04 16:53 Source: Unknown Author: Unknown Read: 983 times

The National Standardization Management Committee announced: GB / T2946-2018, the national standard for ammonium chloride, which will be implemented from December 1, 2018.

The new standard has increased the limit requirements for arsenic, cadmium, lead, chromium, mercury, and their compounds, and increased the average crushing resistance requirements for granular agricultural ammonium chloride. In addition, the new standard also adjusts the requirements for nitrogen content, water content, particle size of granular products and sodium salts of agricultural ammonium chloride. The granular size index of granular products was adjusted from 2.00-4.00mm to 2.00-4.75mm, and the superior product of the granularity index was increased from 75% to 90%, and the first-class product was increased from 70% to 80%. In the quality index of nitrogen, the first-class product was adjusted from not less than 25.0% to no less than 24.5%, and the qualified product was adjusted from no less than 24.0% to no less than 23.5%. On the quality index of sodium salt, the first-class product was adjusted from not higher than 1.0% to not higher than 1.2%.

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