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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 23773-2009 |
Inorganic chemicals for industrial use - General method for determination of ammonium content - Nessler’s reagent colorimetric method 无机化工产品中铵含量测定的通用方法 纳氏试剂比色法 |
China National Standards Nessler’s |
 English PDF |
| GB/T 23772-2009 |
Inorganic chemicals for industrial use - General method for the determination of total nitrogen content - Nessler’s reagent colorimetric method 无机化工产品中总氮含量测定的通用方法 蒸馏-纳氏试剂比色法 |
China National Standards Nessler’s |
English PDF |
| GB/T 16031-1995 |
Workplace air--Determination ofammonia--Nessler’s reagent spectrophotometric method 车间空气中氨的纳氏试剂分光光度测定方法 |
China National Standards Nessler’s |
English PDF |
| GB/T 14668-1993 |
Air quality--Determination of ammonia--Nessler’s reagent colorimetric method 空气质量 氨的测定 纳氏试剂比色法 |
China National Standards Nessler’s |
English PDF |
| GB/T 7479-1987 |
Water quality--Determination of ammonium--Nessler’s reagent colorimetric method 水质 铵的测定 纳氏试剂比色法 |
China National Standards Nessler’s |
English PDF |
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