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JB/T 6237.10-2008 Test methods for chemical analysis of silver powder for electric contact material—Part 10:Determinatiln of silver nitrate content 60.0 via email in 1~3 business day valid
JB/T 6454-2008 Technical specification for heating resistance alloys 210.0 via email in 1~3 business day valid
GB/T 13140.5-2008 Connecting devices for low-voltage circuits for household and similar purposes - Part 2: Particular requirements for twist-on connecting devices 255.0 via email in 1~3 business day superseded
GB/T 18290.5-2000 Souderless connections—Part 5:Solderless press-in connections—General requirements,test methods and practical guidance 360.0 via email in 1~3 business day superseded
JB/T 7774.1-2008 Test methods for chemical analysis of silver-zinc oxide electric contact material -Part 1:Determination of zinc content 60.0 via email in 1~3 business day valid
JB/T 7780.3-2008 Methods for measuring mechanical and physical properties of wires for rivet contacts-Part 3:Determination of resistivity 60.0 via email in 1~3 business day valid
GB/T 5587-2016 Basic shapes,dimensions,symbols and notations of silver based electrical contacts 255.0 via email in 1~3 business day valid
GB/T 5586-1998 Test methods for essential porperty of electric contact material 150.0 via email in 1~3 business day abolished
JB/T 7777.4-2008 Test methods for chemical analysis of silver-tin oxide-indium oxide electric contact material-Part 4:Determination of zinc content 60.0 via email in 1~3 business day valid
GB 13140.5-2008 Connecting devices for low-voltage circuits for household and similar purposes - Part 2: Particular requirements for twist-on connecting devices 240.0 via email in 1~3 business day valid
JB/T 7780.1-2008 Methods for measuring mechanical and physical properties of wires for rivet contacts-Part 1:Determination of density 60.0 via email in 1~3 business day valid
GB/T 14048.10-2008 Low-voltage switchgear and controlgear - Part 5-2: Control circuit devices and switching element - Proximtiy switches 960.0 via email in 1~3 business day superseded
JB/T 7777.2-2008 Test methods for chemical analysis of silver-tin oxide-indium oxide electric contact material-Part 2:Determination of indium 60.0 via email in 1~3 business day valid
QJ 1721.17-1989 45.0 via email in 1~3 business day valid
JB/T 7774.2-2008 Test methods for chemical analysis of silver-zinc oxide electric contact material -Part 2:Determination of aluminium content 60.0 via email in 1~3 business day valid
JB/T 7776.1-2008 Test methods for chemical analysis silver-cadmium oxide electric contact material—Part 1:Determination of cadmium content 60.0 via email in 1~3 business day valid
GB/T 18290.4-2000 Solderless connections - Part 4: Solderless non-accessible insulation displacement connections - General requirements, test methods and practical guidance 360.0 via email in 1~3 business day superseded
JB/T 7776.2-2008 Test methods for chemical analysis silver-cadmium oxide electric contact material—Part 2:Determination of zinc content 90.0 via email in 1~3 business day valid
GB/T 5587-1985 Basic shapes dimensions symbols and notations of silver based electrical contacts 270.0 via email in 1~3 business day superseded
JB/T 7131-2002 Standard test method for cross curvature of thermostat metals 90.0 via email in 1~3 business day valid
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