ASTM C551/C551M-07 (R2019) PDF Download

The ASTM C551/C551M-07 (R2019) standard is a specification for asbestos-cement fiberboard insulating panels. These panels are composed of a core made of insulating fiberboard, which is sandwiched between and bonded to two sheets of asbestos-cement facing board. The purpose of these panels is to be used in various applications such as exterior and interior walls, partitions, curtain walls, roof decks, and for decorative purposes.

The standard outlines the requirements and test methods for these asbestos-cement insulating panels. Some of the tests to be performed include measuring the flexural strength, vapor permeability, thermal resistance, adhesive line bond, and dimensional measurements. These tests help determine the conformity of the panels with the specification.

The standard also includes a warning about the hazards of breathing asbestos dust. It advises users and those who come into contact with asbestos and asbestos products to take precautions to minimize dust exposure. It also refers to a manual on preventive and control measures for the safe use of chrysotile asbestos.