Specifications Manufactured, tested and certified in accordance with ASME 3A-105N & ASTM A105N Normalized Canadian Registration Numbers (CRN) available Certifications NPT threads on forged steel fittings conform to ASME B1.20.1 Forged carbon steel socket weld inserts conform to MSS-SP-79 Forged carbon steel unions conform to MSS-SP-83 Manufacturing facility is ISO 9001:2008 Downloads Technical Information (PDF Download)