1.1 This test method covers the determination of the dc volume resistivity of a smooth, preferably polished, glass by measuring the resistance to passage of a small amount of direct current through the glass at a voltage high enough to assure adequate sensitivity. This current must be measured under steady-state conditions that is neither a charging current nor a space-charge, buildup polarization current.
1.2 This test method is intended for the determination of resistivities less than 1016 Ω·cm in the temperature range from 25°C to the annealing point of the glass.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 5.
ASTM C657-93(2013) Referenced Document
ASTM D1711 Standard Terminology Relating to Electrical Insulation
ASTM D1829 Standard Test Method for Electrical Resistance of Ceramic Materials at Elevated Temperatures
ASTM D257 Standard Test Methods for DC Resistance or Conductance of Insulating Materials
ASTM D374 Standard Test Methods for Thickness of Solid Electrical Insulation
ASTM C657-93(2013) history
2019ASTM C657-19 Standard Test Method for D-C Volume Resistivity of Glass
2013ASTM C657-93(2013) Standard Test Method for D-C Volume Resistivity of Glass
2008ASTM C657-93(2008) Standard Test Method for D-C Volume Resistively of Glass
1993ASTM C657-93(2003) Standard Test Method for D-C Volume Resistively of Glass
1998ASTM C657-93(1998) Standard Test Method for D-C Volume Resistivity of Glass