1.1 These test methods cover procedures for testing polytetrafluoroethylene tubing for use as electrical insulation. The procedures appear in the following sections:     Procedure   Sections   ASTM   Methods Conditioning  7 ... Dielectric Breakdown Voltage 28 - 30 D149, D876 Inside Diameter  8 - 13 D876 Mandrel Bend Test 46 - 52 D149, D876 Melting Point 41 - 45 D3418, D4895 Penetration Test 26 and 27 D876 Specific Gravity 36 - 40 D792, D1505 Strain Relief 31 - 35 ... Volatile Loss 20 - 25 ... Wall Thickness 14 - 19 ... Note 1: These test methods are similar but not identical to those in IEC 60684-2. 1.2 The values stated in inch-pound units are the standard except for temperature, which is stated in degrees Celsius. Values in parentheses are for information only. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific warning statements, see Section 5. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.