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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 13747.25-2017 |
Methods for chemical analysis of zirconium and zirconium alloys—Part 25：Determination of niobium content—2-(5-bromo-2-pyridylazo)-5-diethylam inophenol spectrophotometry and inductively coupled plasma atomic emission spectrometry 锆及锆合金化学分析方法 第25部分：铌量的测定 5-Br-PADAP分光光度法和电感耦合等离子体原子发射光谱法 |
China National Standards pyridylazo |
 English PDF |
| GB/T 6730.44-2017 |
Iron ores—Determination of zinc content—1-(2-pyridylazo)-2-naphthol spectrophotometric method 铁矿石 锌含量的测定 1-(2-吡啶偶氮)-2-萘酚分光光度法 |
China National Standards pyridylazo |
English PDF |
| GB/T 4698.22-1996 |
Sponge titanium，titanium and titanium alloys--Determination of niobium content-2-(5-Bromo-2-pyridylazo)-5-Diethylaminophenol spectrophotometric method 海绵钛、钛及钛合金化学分析方法 5-Br-PADAP分光光度法测定铌量 |
China National Standards pyridylazo |
English PDF |
| GB/T 11220.1-1989 |
Determination of uranium in soil--CL-5209 extractant-containing resin separation 2-(5-bromo-2-pyridylazo)-5-diethlaminophenol spectrophotometry 土壤中铀的测定 CL-5209 萃淋树脂分离2-(5-溴-2-吡啶偶氮)-5-二乙氨基苯酚分光光度法 |
China National Standards pyridylazo |
English PDF |
| GB/T 223.51-1987 |
Methods for chemical analysis of iron，steel and alloy--The 2-(5-Bromo-2-pyridylazo)-5-diethylaminophenol photometric method for the determination of zinc content 钢铁及合金化学分析方法 5-Br-PADAP 光度法测定锌量 |
China National Standards pyridylazo |
English PDF |
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