Plastics film and sheeting—Determination of impact resistance by the free-falling dart methord—Part 1:Staircase methord
IDT ISO 7765-1:1988
全国塑料制品标准化技术委员会
1.1 GB/T 9639的本部分规定了在给定高度的自由落镖冲击下，测定塑料薄膜和薄片试样破损数量达50%时的能量。以冲击破损质量表示。
本部分适用于塑料薄膜和厚度小于1 mm的薄片。
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