ASTM D4321塑料薄膜的包裝屈服點的標準試驗方法—標準名稱

ASTM D4321 Standard Test Method for Package Yield of Plastic Film

ASTM D4321 塑料薄膜的包裝屈服點的標準試驗方法

ASTM D4321塑料薄膜的包裝屈服點的標準試驗方法—適用范圍

Scope：

This test method covers the determination of yield (area per unit mass) of plastic film. Also described in this test method is the means for calculating nominal yield, given values for nominal density, and nominal thickness. This is needed since, in material specifications, limits for yield are normally stated in terms of the percent deviation of actual yield from nominal yield.

ASTM D4321塑料薄膜的包裝屈服點的標準試驗方法—引用文件

ASTM D792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement

ASTM D883 Terminology Relating to Plastics

ASTM D1505 Test Method for Density of Plastics by the Density Gradient Technique

ASTM D4883 Test Method for Density of Polyethylene by the Ultrasound Technique

ASTM D6988 Guide for Determination of Thickness of Plastic Film Test Specimens

ASTM E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method