ASTM C550 – Standard Test Method for Measuring Trueness and Squareness of Rigid Block and Board Thermal Insulation
Description:
Significance and Use
4.1 It is possible that insulating blocks or boards that are not true or square will not fit properly. It is possible that extra labor will be required to obtain proper fit and that this could affect the product performance as well as the appearance of the finished installation.
4.2 This test method provides terminology and describes locations for obtaining consistent measurements of trueness and squareness of blocks and boards.
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 considered standard.
ASTM C535