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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 19789-2021 |
Packaging material—Test method for oxygen gas permeability characteristics of plastic film and sheeting—Coulometric sensor 包装材料 塑料薄膜和薄片氧气透过性试验 库仑计检测法 |
China National Standards material—Test |
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