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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 3780.26-2018 |
Carbon black—Part 26：Determination of carbon content in carbon black feedstock oils 炭黑 第26部分：炭黑原料油中碳含量的测定 |
China National Standards 26：Determination |
 English PDF |
| GB/T 20975.26-2013 |
Methods for chemical analysis of aluminium and aluminium alloys - Part 26：Determination of carbon content infrared absorption method 铝及铝合金化学分析方法 第26部分：碳含量的测定 红外吸收法 |
China National Standards 26：Determination |
English PDF |
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