ASTM B373-00

    Standard Specification for Aluminum Foil for Capacitors

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    1. Scope

    1.1 This specification covers nine thicknesses (0.00017 to 0.00050 in. (0.0043 to 0.0127 mm)) of annealed aluminum foil used in the manufacture of capacitors.

    1.2 Foil to be used as anodes in electrolytic capacitors is beyond the scope of this specification.

    1.3 Alloy designations are in accordance with ANSI H35.1. The equivalent Unified Numbering System alloy designations are those of Table 1 preceded by A9, for example, A91145 for Aluminum 1145 in accordance with Practice E527.

    1.4 For acceptance criteria for inclusion of new aluminum and aluminum alloys in this specification, see Annex A1.

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


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    B193 Test Method for Resistivity of Electrical Conductor Materials

    E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

    E34 Test Methods for Chemical Analysis of Aluminum and Aluminum-Base Alloys

    E55 Practice for Sampling Wrought Nonferrous Metals and Alloys for Determination of Chemical Composition

    E227 Test Method for Optical Emission Spectrometric Analysis of Aluminum and Aluminum Alloys by the Point-to-Plane Technique

    E252 Test Method for Thickness of Foil, Thin Sheet, and Film by Mass Measurement

    E345 Test Methods of Tension Testing of Metallic Foil

    E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)

    E607 Test Method for Atomic Emission Spectrometric Analysis Aluminum Alloys by the Point to Plane Technique Nitrogen Atmosphere

    E716 Practices for Sampling and Sample Preparation of Aluminum and Aluminum Alloys for Determination of Chemical Composition by Spectrochemical Analysis

    E1251 Test Method for Analysis of Aluminum and Aluminum Alloys by Spark Atomic Emission Spectrometry

    ANSI Standard


    ICS Code

    ICS Number Code 29.050 (Superconductivity and conducting materials)

    UNSPSC Code

    UNSPSC Code 30102006(Aluminum foil); 32121500(Capacitors)


    DOI: 10.1520/B0373-00

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