Bituminous materials; ASTM D5; AASHTO T49, IP49; ASA Std., A37.1; Fed Spec. SS.R. 406C, Meth. 214.01, Standard hardened stainless steel needle. H-1280 and H-1300 feature 40-45mm exposed needle lengths; H-1290 features 50-55mm exposed needle length. Wt. 2.5g.