HB/Z 192-2008 Heat treatment of soft magnetic alloys

GB 15735-1995 Requirements for the safety and health in production process of metal heat treatment GB 15735-2004 Requirements for the safety and health in production process of metal heat treatment GB 15735-2012 Requirements for the safety and health in production process of metal heat treatment GB 4962-1985 Technical safety regulation for gaseous hydrogen use GB 4962-2008 Technical safety regulation for gaseous hydrogen use GB/T 10624-1995 High purity argon GB/T 15001 GB/T 3657-1983 Measurement method of direct magnetic properties of soft magnetic alloys GB/T 3658-1990 Soft magnetic alloys—Measuring method for alternative magnetic properties GB/T 3658-2008 Methods of measurement of a.c.magnetic properties of magnetically soft materials GB/T 3658-2022 Methods of measurement of the magnetic properties of magnetically soft metallic and powder materials at frequencies in the range 20 Hz to 100 kHz by the use of ring specimens GB/T 4842-1995 Pure argon GB/T 4842-2006 Argon GB/T 4842-2017 Argon GB/T 7445-1995 Pure hydrogen and high pruity hydrogen and ultra pure hydrogen GB/T 8979-1996 Pure nitrogen GB/T 8979-2008 Pure nitrogen and high purity nitrogen and ultra pure nitrogen GB/T 8980-1996 High purity nitrogen GJB 509B-2008 YS/T 274-1998 Alumina GB/T 8979-2025 Pure nitrogen,high purity nitrogen and ultra pure nitrogen