ASTM D229-09b

standard by ASTM International, 10/01/2009
Standard Test Methods for Rigid Sheet and Plate Materials Used for Electrical Insulation
Category: ASTM

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Description

Full Description

1.1 These test methods cover procedures for testing rigid electrical insulation normally manufactured in flat sheet or plate form. They are generally used as terminal boards, spacers, voltage barriers, and circuit boards.

Note 1 - For tests applying to vulcanized fibre reference needs to be made to Test Methods D619.

Note 2 - This standard resembles IEC 60893-2, Specification for Rigid Industrial Laminated Sheets Based On Thermosetting Resins for Electrical Purpose, Methods of Tests.

1.2 The test methods appear in the following sections:

Test	Sections	ASTM Test Method
Acetone extractable matter	83 to 84	D494
Arc resistance	47	D495
Ash	56 to 60	...
Bonding strength	49 to 54	...
Burning rate and flame resistance	61 to 75	...
Compressive strength	25	D695
Conditioning	4	D6054
Dissipation factor	34 to 40	D669
Dielectric strength	28 to 33	D149
Expansion (linear thermal)	76	D696
Flexural properties	12 to 24	D790
Hardness (Rockwell)	55	D785
Insulation resistance and resistivity	41 to 46	D257
Permittivity	34 to 40	D150
Resistance to impact	26	D256
Tensile properties	7 to 11	D638
Thickness	5 to 6	D374
Tracking resistance	48	D2132
Warp or twist	77 to 82	...
Water absorption	27	D570

1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.4 This is a fire-test-response standard. See Sections 61 through 75, which are the procedures for burning rate and flame resistance.

1.5 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 precautionary statements are given in 31.1 and 1.6.

1.6 This standard measures and describes the response of materials, products, or assemblies to heat and flame under controlled conditions, but does not by itself incorporate all factors required for fire hazard or fire risk assessment of the materials, products, or assemblies under actual