1、 EIA STANDARD TP-82A CORROSIVITY OF PLASTICS TEST PROCEDURE FOR ELECTRICAL CONNECTOR AND SOCKET HOUSINGS EIA-364-82A (Revision of EIA-364-82) MARCH 2005 ELECTRONIC COMPONENTS, ASSEMBLIES & MATERIALS ASSOCIATION THE ELECTRONIC COMPONENTS SECTOR OF THE ELECTRONIC INDUSTRIES ALLIANCE ANSI/EIA364-82A-20
2、05 Approved: March 17, 2005 Reaffirmed: October 19, 2010 EIA-364-82ANOTICE EIA Engineering Standards and Publications are designed to serve the public interest through eliminating misunderstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and
3、 assisting the purchaser in selecting and obtaining with minimum delay the proper product for his particular need. Existence of such Standards and Publications shall not in any respect preclude any member or nonmember of EIA from manufacturing or selling products not conforming to such Standards and
4、 Publications, nor shall the existence of such Standards and Publications preclude their voluntary use by those other than EIA members, whether the standard is to be used either domestically or internationally. Standards and Publications are adopted by EIA in accordance with the American National St
5、andards Institute (ANSI) patent policy. By such action, EIA does not assume any liability to any patent owner, nor does it assume any obligation whatever to parties adopting the Standard or Publication. This EIA Standard is considered to have International Standardization implication, but the Intern
6、ational Electrotechnical Commission activity has not progressed to the point where a valid comparison between the EIA Standard and the IEC document can be made. This Standard does not purport to address all safety problems associated with its use or all applicable regulatory requirements. It is the
7、responsibility of the user of this Standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations before its use. (From Standards Proposal No. 5063 formulated under the cognizance of the CE-2.0 National Connectors Standards Committee. Publi
8、shed by ELECTRONIC INDUSTRIES ALLIANCE 2005 Technology Strategy & Standards Department 2500 Wilson Boulevard Arlington, VA 22201 PRICE: Please refer to the current Catalog of EIA Electronic Industries Alliance Standards and Engineering Publications or call Global Engineering Documents, USA and Canad
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11、e evident for safety, health or technical reasons, please fill in the appropriate information below and mail or FAX to: Electronic Industries Alliance Technology Strategy & Standards Department Publications Office 2500 Wilson Blvd. Arlington, VA 22201 FAX: (703-875-8906) Document No. Document Title:
12、 Submitters Name: Telephone No.: FAX No.: e-mail: Address: Urgency of Change: Immediate: At next revision: Problem Area: a. Clause Number and/or Drawing: b. Recommended Changes: c. Reason/Rationale for Recommendation: Additional Remarks: Signature: Date: FOR EIA USE ONLY Responsible Committee: Chair
13、man: Date comments forwarded to Committee Chairman: iii CONTENTS Clause Page 1 Introduction . 1 1.1 Scope . 1 2 Test resources 1 2.1 Material . 1 3 Test specimen 2 3.1 Description 2 3.2 Preparation 2 4 Test procedure . 2 5 Details to be specified . 3 6 Test documentation . 3 iv (This page left blank
14、) TEST PROCEDURE No. 82A CORROSIVITY OF PLASTICS TEST PROCEDURE FOR ELECTRICAL CONNECTOR AND SOCKET HOUSINGS (From EIA Standards Proposal No. 5063, formulated under the cognizance EIA CE-2.0 Committee on National Connector Standards, and previously published in EIA-364-82.) 1 Introduction 1.1 Scope
15、1.1.1 This standard establishes a test method to determine whether a plastic electrical connector or socket housing generates corrosive elements when in contact with metallic parts or components. NOTE This procedure is not intended to be used for qualitative analysis of corrosion products. 1.1.2 Thi
16、s corrosiveness may be a result of: Additives and/or filler material contained within the plastic formulation, Inadequate cure or post-cure of the material that can result in outgassing of the material. 2 Test resources 2.1 Material 2.1.1 Copper metal strips shall be used. The size of the metal stri
17、ps shall be such to accommodate the length and width of the test specimen plus 12.7 millimeters (0.5 inch) to extend beyond the end and side of the specimen. A glass epoxy board clad with copper on one entire side may be substituted for copper strips. 2.1.2 Crocus cloth 2.1.3 Alcohol, isopropyl, AR
18、grade 2.1.4 Waxed noncorrosive string or equivalent 3 Test specimen 3.1 Description The test specimen shall consist of an electrical connector or socket housing. 3.2 Preparation 3.2.1 Surface oxides shall be removed from the copper substrate with a clean crocus cloth. 3.2.2 The substrate shall then
19、be cleaned by rinsing in AR grade isopropyl alcohol and blow drying with clean air or dry nitrogen. 3.2.3 Immediately upon completion of cleaning, the test specimen shall be secured to the substrate with a waxed noncorrosive string or equivalent. 3.2.4 The specimen shall be attached to the metal str
20、ip in a manner that allows the greatest surface area to be in direct contact with the substrate. 3.2.5 Five specimens of each configuration/material system shall be prepared, unless otherwise specified in the referencing document. 3.2.6 All preparation shall be preformed no more than 2. 0 hours prio
21、r to being exposed to the environment specified in 4.4, unless otherwise specified in the referencing document. 4 Test procedure 4.1 Each mounted test specimen shall be placed in an individual polyethylene bag of a size equal to or slightly larger that the test specimen. One specimen shall be contai
22、ned in each bag. The bag opening shall be folded under the bottom side but no be sealed. NOTE This step is required to eliminate or minimize moisture accumulation that may dilute or remove corrosion products or particulates from the specimens and/or substrates involved. 4.2 A metal substrate without
23、 any connector or socket housing mounted to it shall be packaged separately, as specified in 4.1, and shall be used be used as a control specimen. 4.3 The test and control specimens shall be exposed to 10 days of cyclic humidity in accordance with EIA-364-31, method III, deleting steps 7a and 7b, an
24、d preconditioning and polarization voltage are not required. 4.4 Upon completion of the exposure, the test specimens shall be removed and allowed to air dry prior to removal of the test specimens from the metal substrate. 4.5 After removal of the test specimens from the metal substrate, the substrat
25、es shall be visually examined and compared to the control specimen. Pitting or the presence of corrosion products on any portion of the substrate, not observed on the control specimen, shall be reported. 5 Details to be specified The following details shall be specified in the referencing document:
26、5.1 Pass/fail criteria 6 Documentation Documentation shall contain the details specified in clause 5, with any exceptions, and the following: 6.1 Title of test 6.2 Specimen description 6.3 Test equipment used, and date of last and next calibration 6.4 Room ambient temperature and humidity 6.5 Test p
27、rocedure 6.6 Visual observations and results 6.7 Name of operator and date of test EIA Document Improvement Proposal If in the review or use of this document, a potential change is made evident for safety, health or technical reasons, please fill in the appropriate information below and mail or FAX
28、to: Electronic Industries Alliance Technology Strategy & Standards Department Publications Office 2500 Wilson Blvd. Arlington, VA 22201 FAX: (703-875-8906) Document No. Document Title: Submitters Name: Telephone No.: FAX No.: e-mail: Address: Urgency of Change: Immediate: At next revision: Problem Area: d. Clause Number and/or Drawing: e. Recommended Changes: f. Reason/Rationale for Recommendation: Additional Remarks: Signature: Date: FOR EIA USE ONLY Responsible Committee: Chairman: Date comments forwarded to Committee Chairman:
