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GB/T 8947-1998编织袋的拉伸性能

作者：來源：发布日期： 2020.10.20

信息摘要：

GB/T 8947-1998编织袋的拉伸性能

以聚丙烯、聚乙烯树脂为原料，经挤出、拉伸成扁丝，再经编织成的塑料编织布为基材，经过流延法复合后制成的用于包装粉状或颗粒状固体物料的复合塑料编织袋，国标GB/T 8947-1998规定了其相关要求。其中的抗拉伸负荷、抗剥离性能，需要用拉力试验机进行测试。

物理性能應符合下表要求：

拉伸強度試驗時，試驗機速度設定爲200mm/min，夾具間距200mm。

取樣方法：以編織布面的縫紉卷折面爲取樣面，按下圖部位在每個袋上順絲的走向取徑向、維向、縫邊向、縫底向試樣各兩塊，長300mm寬50mm，縫向試樣的兩邊縫線應適當留長。

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The Curate, of course, had heard nothing about the Clockwork man's other performances; he had scarcely heeded the hints thrown out about the possibility of movement in other dimensions. It seemed to him, in the uncertain light of their surroundings, that the Clockwork man's right arm gradually disappeared into space. There was no arm there at all. Afterwards, he remembered a brief moment when the arm had begun to grow vague and transparent; it was moving very rapidly, in some direction, neither up nor down, nor this way or that, but along some shadowy plane. Then it went into nothing, evaporated from view. And just as suddenly, it swung back into the plane of the curate's vision, and the hand at the end of it grasped a silk hat. Good fitting is often not so much a question of skill as of the standard which a workman has fixed in his mind, and to which all that he does will more or less conform. 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