Standard Code | Standard Title | Standard Class | Order |
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GB/T 20975.25-2020 |
Methods for chemical analysis of aluminium and aluminium alloys—Part 25:Determination of elements content—Inductively coupled plasma atomic emission spectrometric method 铝及铝合金化学分析方法 第25部分:元素含量的测定 电感耦合等离子体原子发射光谱法 |
China National Standards 25:Determination |
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GB/T 3780.25-2018 |
Carbon black—Part 25:Determination of carbon content 炭黑 第25部分:碳含量的测定 |
China National Standards 25:Determination |
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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 25:Determination |
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GB/T 4698.25-2017 |
Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 25:Determination of chlorine content—Silver chlorin spectrophotometry 海绵钛、钛及钛合金化学分析方法 第25部分:氯量的测定 氯化银分光光度法 |
China National Standards 25:Determination |
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