ASTM C1021-08 (R2019) PDF Download

ASTM C1021-08 (R2019) is a standard practice that outlines the qualifications and requirements for laboratories engaged in the testing of building sealants used in construction. The standard emphasizes the importance of prequalifying testing laboratories to ensure accurate test results and reliable certification.

The standard also highlights the importance of considering the contractual relationships between the testing laboratory and other interested parties, such as the sealant manufacturer, contractor, owner, and architect. It states that while the testing laboratory may be qualified, the contracting authority should assess the potential conflicts of interest and consider if the testing should be conducted by an independent laboratory.

Furthermore, the standard addresses the cost implications of testing sealants for each project and suggests that the cost of testing may vary based on the size of the project. It also recommends specifying in the contract documents that proof of compliance with performance standards should be in the form of certification by a testing laboratory meeting the requirements of this practice.