AWPA M1-20
Standard for the Purchase of Treated Wood Products
standard by American Wood Protection Association, 2020
Full Description
Wood products to be used in permanent locations where exposed to decay or attack by other wood-destroying organisms should be impregnated with a preservative chemical(s). Only those species and preservatives specified in AWPA Standard U1 have previously been found suitable for use in this particular application, or sufficient test information has been submitted to warrant their inclusion.