1.1 These test methods cover the testing of general-purpose (Grade A), low-temperature (Grade B), and high-temperature (Grade C) nonrigid vinyl chloride polymer tubing, or its copolymers with other materials, for use as electrical insulation. For the purpose of these test methods nonrigid tubing shall be tubing having an initial elongation in excess of 100% at break.

1.2 The values stated in inch-pound units are to be regarded as the standard, except temperature, which shall be stated in degrees Celsius. Values in parentheses are for information only.

1.3 The procedures appear in the following sections:

ASTM Reference Procedure Section Standard Brittleness Temperature 43 to 45 D 746 Corrosion Tests 74 to 85 D 1000 Dielectric Breakdown Voltage at High Humidity 65 to 73 E 104 Dielectric Breakdown Voltage 58 to 64 D 149 Dimensional Tests 8 to 14 D 374 Effect of Elevated Temperatures 25 to 36 D 412 Flammability Test 15 to 21 Oil Resistance Test 35 to 42 D 471 Penetration Test 46 to 51 Sampling 6 Strain Relief Test 68 to 73 Tension Test 22 to 24 D 412 Test Conditions 7 Volume Resistivity 52 to 57 D 257

1.4 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 3.