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ASTM International - ASTM D4733-13

Standard Test Methods for Solventless Electrical Insulating Varnishes

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Organization: ASTM International
Publication Date: 1 April 2013
Status: inactive
Page Count: 6
ICS Code (Varnished fabrics): 29.035.60
significance And Use:

4.1 The test methods referenced in these test methods are useful for control purposes during the manufacture and use of solventless varnishes.

scope:

1.1 These test methods cover solventless varnishes used primarily as electrical, mechanical, and environmental protection for electrical equipment.

1.2 These test methods are used on solventless varnishes that are applied by dipping (at atmospheric pressure conditions or under vacuum or other certain pressure), spraying, or brushing for the purpose of impregnating or sealing electrical equipment. The following test methods are included:

Property Tests (Uncured): Section
Density  7
Flash Point  8
Gel Time  9
Monomer Content 10
Rheological Properties (Non-Newtonian) 11
Brookfield Viscosity 12
Performance Property Tests (cured):  
Bond Strength 13
Coating Thickness 14
Dielectric Strength 15
Dielectric Strength-Using Metal Panels 16
Permittivity and Dissipation Factor 17
Build 18

1.3 The values stated in inch-pound units are to be regarded as the standard. The values in parentheses are for information only.

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. Specific hazard statements are given in 8.3, 15.5.1, and 15.5.2.

Note 1-This test method is related to IEC 60455. Since both methods contain multiple test procedures, many procedures are technically equivalent while others differ significantly.

Document History

November 1, 2017
Standard Test Methods for Solventless Electrical Insulating Varnishes
1.1 These test methods cover solventless varnishes used primarily as electrical, mechanical, and environmental protection for electrical equipment. 1.2 These test methods are used on solventless...
ASTM D4733-13
April 1, 2013
Standard Test Methods for Solventless Electrical Insulating Varnishes
1.1 These test methods cover solventless varnishes used primarily as electrical, mechanical, and environmental protection for electrical equipment. 1.2 These test methods are used on solventless...
October 1, 2009
Standard Test Methods for Solventless Electrical Insulating Varnishes
1.1 These test methods cover solventless varnishes used primarily as electrical, mechanical, and environmental protection for electrical equipment. 1.2 These test methods are used on solventless...
October 1, 2003
Standard Test Methods for Solventless Electrical Insulating Varnishes
1.1 These test methods cover solventless varnishes used primarily as electrical, mechanical, and environmental protection for electrical equipment. 1.2 These test methods are used on solventless...
November 10, 1998
Standard Test Methods for Solventless Electrical Insulating Varnishes
1.1 These test methods cover solventless varnishes used primarily as electrical, mechanical, and environmental protection for electrical equipment. 1.2 These test methods are used on solventless...
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