Standard Test Methods for Mastics and Coatings Used With Thermal Insulation
NORMA vydána dne 1.9.2023
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Designation standards: ASTM C461-23
Publication date standards: 1.9.2023
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Kategorie: Technické normy ASTM
These test methods cover procedures for sampling and testing mastics and coatings for use as weather and vapour barrier finishes on thermal insulations and for other accessory use. Take the samples for laboratory examination from the original containers immediately after stirring to a uniform condition. Determine the number of containers sampled as required representing a shipment. Open the original containers and examine them for uniformity of contents. The procedures for determining the stability of coatings under freezing are presented in details. The paper covers the determination of the volume of volatile matter and the coverage per unit of dry film thickness of mastics and coatings. Application of the material to the test panels shall meet the requirements prescribed, or to the thickness and by the method to be followed in practice, such as spray, brush, or trowel. Test the coated panel prepared in accordance with the required method at 15-min intervals to determine the time required to set-to-touch, and at 30-min intervals to determine the time to reach practical hardness.
Keywords:
coatings, consistency, density, mastics, thermal insulation,, ICS Number Code 27.220 (Heat recovery. Thermal insulation)