ASTM C550刚性绝热块和板的平直度和精度的标准试验方法
日期:2012-02-13 18:20
nd squareness of blocks and boards.
1. Scope
1.1 This test method covers locations for measuring the trueness and squareness of rigid block/board thermal insulation. This test method does not purport to address the variability in board thickness. Thickness is addressed in other ASTM standards.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not conside
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