... Certification Putting Your Trust in EFF1) Insert for fittings conform to F1807,2) Fittings with soldering or brazing end ... conform to ASME B16.22,3) NPT Male Thread ... , NPSM Female Thread,4) Thread conform to ANSI/ASME B1.20.1,5) Certification : CSA ... (C37700\C46400\C69300\C48600 Forged Brass),6) Conform to NSF61-4(ASTM F1807, CSA B137.5).Structure: ...