容许误差;允许误差
In line with the national standard, the potassium content in compound fertilizers is determined by gravimetry with tetraphenyl potassium borate, and the permissible error of two results of determination is 0.20%.
国标中采用四苯基合硼酸钾重量法测定复混肥料中的钾含量,2次测定结果允许相差0.20%。
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