Scope
1.1 These test methods cover procedures for testing pressure-sensitive adhesive-coated tapes to be used as electrical insulation. These tapes are classified as follows:
1.1.1 Class 1—Non-elastomeric backings made from materials such as:
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| Paper, flat or creped, |
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| Fabric, uncoated or coated, |
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| Cellulose ester films, |
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| Polyethylene terephthalate (polyester) films, |
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| Fluorocarbon polymer films, |
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| Composite filament films, |
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| Polyamide films, |
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| Polyimide films, and |
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| Combinations thereof. |
1.1.2 Class 2—Elastomeric backings that are characterized by both high stretch and substantial recovery. These backings are made from materials such as:
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| Vinyl chloride and co-polymers, |
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| Vinylidene chloride and co-polymers, and |
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| Polyethylene and co-polymers. |
1.2 Test laminates of Class 1 and Class 2 backings according to Class 1 test methods.
1.3 The procedures appear in the sections indicated below and in alphabetical order:
| Adhesion Strength to Steel and Backing at Room Temperature | 46 – 53 |
| Adhesion Strength to Steel and Backing at Low Temperatures | 46 – 53 |
| Bond Strength After Solvent Immersion | 110 – 115 |
| Breaking Strength and Elongation at Room Temperature | 37 – 45 |
| Breaking Strength and Elongation at Low Temperatures | 37 – 45 |
| Conditioning | 6 – 8 |
| Curling and Twisting | 140 – 146 |
| Dielectric Breakdown Voltage | 83 – 90 |
| Effect of Accelerated Aging on High-Temperature Tapes | 97 – 103 |
| Flagging | 66 – 76 |
| Flammability | 104 – 109 |
| Hazards/Precautions | 3 |
| Insulation Resistance at High Humidity | 91 – 96 |
| Length of Tape in a Roll | 28 – 36 |
| Oil Resistance | 116 – 122 |
| Puncture Resistance | 123 – 128 |
| Resistance to Accelerated Aging (Heat and Moisture) | 129 – 139 |
| Sampling | 4 |
| Specimen Preparation | 5 |
| Thermosetting Properties | 77 – 82 |
| Thickness | 21 – 27 |
| Unwind Force at Room Temperature | 54 – 65 |
| Unwind Force at Low Temperatures | 54 – 65 |
| Width | 11 – 20 |
Note 1: These procedures apply to both Class 1 and Class 2 tapes except as noted above.
1.4 These test methods are used to measure and describe the response of materials, products, or assemblies to heat and flame under controlled conditions, but do not by themselves incorporate all factors required for fire hazard or fire risk assessment of the materials, products or assemblies under actual fire conditions.
1.5 The values stated in SI units are the standard, unless otherwise noted. If a value for measurement is followed by a value in inch-pound or English units in parentheses, it is likely that the second value will only be approximate and it is for information only. The first stated value is the preferred unit.
Note 2: These test methods and IEC 60454–3-All Sheets address the same subject matter, but differ in technical content.
1.6 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 hazards see Section 3.
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.
