1.1 This specification covers acceptance testing of rubber insulating blankets for protection of workers from accidental contact with live electrical conductors, apparatus, or circuits.
1.2 Two types of blankets are provided and are designated as Type I, not resistant to ozone, and Type II, resistant to ozone.
1.3 Five classes of blankets, differing in electrical characteristics, are provided and are designated as Class 0, Class 1, Class 2, Class 3, and Class 4.
1.4 Two styles of blankets, differing in construction characteristics, are provided and are designated as Style A and Style B.
1.5 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.
1.6 The following safety hazards caveat pertains only to the test method portion, Sections 16 – 19, of this specification: 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.
1.7 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.
ASTM D1048-22 Referenced Document
ASTM D1388 Standard Test Method for Stiffness of Fabrics
ASTM D149 Standard Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials at Commercial Power Frequencies
ASTM D2865 Standard Practice for Calibration of Standards and Equipment for Electrical Insulating Materials Testing
ASTM D297 Standard Test Methods for Rubber Products-Chemical Analysis
ASTM D412 Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers8212;Tension
ASTM D518 Standard Test Method for Rubber Deterioration-Surface Cracking
ASTM D570 Standard Test Method for Water Absorption of Plastics
ASTM D573 Standard Test Method for Rubber-Deterioration in an Air Oven
ASTM D624 Standard Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers*, 2024-04-21 Update
ASTM F819 Standard Terminology Relating to Electrical Protective Equipment for Workers*, 2023-05-01 Update
ASTM D1048-22 history
2024ASTM D1048-24 Standard Specification for Rubber Insulating Blankets
2022ASTM D1048-22 Standard Specification for Rubber Insulating Blankets
2020ASTM D1048-20 Standard Specification for Rubber Insulating Blankets
2019ASTM D1048-14(2019) Standard Specification for Rubber Insulating Blankets
2014ASTM D1048-14 Standard Specification for Rubber Insulating Blankets
2012ASTM D1048-12 Standard Specification for Rubber Insulating Blankets
2011ASTM D1048-11 Standard Specification for Rubber Insulating Blankets
2005ASTM D1048-05 Standard Specification for Rubber Insulating Blankets
1999ASTM D1048-99 Standard Specification for Rubber Insulating Blankets
1993ASTM D1048-93 Standard Specification for Rubber Insulating Blankets
1988ASTM D1048-88ae1 Standard Specification for Rubber Insulating Blankets