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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 4702.7-2016 |
Chromium metal─Determination of nitrogen content─Distillation-nessler reagent spectrophotometric method 金属铬 氮含量的测定 蒸馏分离-奈斯勒试剂分光光度法 |
China National Standards nessler |
 English PDF |
| GB/T 4324.26-2012 |
Methods for chemical analysis of tungsten - Part 26: Determination of nitrogen content - Pulse heating inert gas fusion-thermal conductive method and the nessler reagent spectrophotometry 钨化学分析方法 第26部分：氮量的测定 脉冲加热惰气熔融-热导法和奈氏试剂分光光度法 |
China National Standards nessler |
English PDF |
| 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 |
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 |
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 |
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 |
English PDF |
| GB/T 13747.23-1992 |
Zirconium and zirconium alloys--Determination of nitrogen content--Distillation-nessler reagent spectrophotometric method 锆及锆合金化学分析方法 蒸馏分离-奈斯勒试剂分光光度法测定氮量 |
China National Standards nessler |
English PDF |
| GB/T 10267.5-1988 |
Method for analysis of calcium metal--The determination of nitrogen by distillation--nessler reagent photometric method 金属钙分析方法 蒸馏-奈斯勒试剂光度法测定氮 |
China National Standards nessler |
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 |
English PDF |
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