ASTM D3639Full Name ASTM D3639 – Standard Test Method for Classification of Asbestos by Quebec Standard TestScope This test method covers a procedure for dry classification of chrysotile asbestos fiber by length distribution.Keywords amphibole; asbestos; Canadian; chrysotile; classification; dry test; evaluation; fiber; Q.S.; Quebec standard screening testResourcesASTM International Website: ASTM D3639 Need more info?