首頁 > 標準下載>GB/T 19789-2021 包裝材料 塑料薄膜和薄片氧氣透過性試驗 庫侖計檢測法 Packaging material—Test method for oxygen gas permeability characteristics of plastic film and sheeting—Coulometric sensor免費下載
GB/T 19789-2021 包裝材料 塑料薄膜和薄片氧氣透過性試驗 庫侖計檢測法 Packaging material—Test method for oxygen gas permeability characteristics of plastic film and sheeting—Coulometric sensor