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 Industry Association EIA-364-82A ANSI/EIA-364-82A-2005 (R2017) Approved: March 17, 2005 Reaffirmed: January 23, 2017 NOTICE E
2、IA 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 assisting the purchaser in selecting and obtaining with minimum delay the p
3、roper product for his particular need. Existence of such Standards and Publications shall not in any respect preclude any member or nonmember of ECIA from manufacturing or selling products not conforming to such Standards and Publications, nor shall the existence of such Standards and Publications p
4、reclude their voluntary use by those other than ECIA members, whether the Standard is to be used either domestically or internationally. Standards and Publications are adopted by ECIA in accordance with the American National Standards Institute (ANSI) patent policy. By such action, ECIA does not ass
5、ume 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 implications, but the International Electrotechnical Commission activity has not progressed to the
6、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 responsibility of the user of this Standard to establish appropriate sa
7、fety and health practices and to determine the applicability of regulatory limitations before its use. (From Standards Proposal No. 5373.06, formulated under the cognizance of the CE-2.0 Committee on EIA National Connector and Sockets Standards) Published by Electronic Components Industry Associatio
8、n 2017 EIA Standards & Technology Department 2214 Rock Hill Road, Suite 265 Herndon, VA 20170 PLEASE ! DONT VIOLATE THE LAW! This document is copyrighted by the ECIA and may not be reproduced without permission. Organizations may obtain permission to reproduce a limited number of copies through ente
9、ring into a license agreement. For information, contact: IHS 15 Inverness Way East Englewood, CO 80112-5704 or call USA and Canada (1-877-413-5186), International (303-397-7956) 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 Descri
10、ption 2 3.2 Preparation 2 4 Test procedure . 2 5 Details to be specified . 3 6 Test documentation . 3 iv (This page left blank) TEST PROCEDURE No. 82A CORROSIVITY OF PLASTICS TEST PROCEDURE FOR ELECTRICAL CONNECTOR AND SOCKET HOUSINGS (From EIA Standards Proposal No. 5063, formulated under the cogni
11、zance EIA CE-2.0 Committee on National Connector Standards, and previously published in EIA-364-82.) 1 Introduction 1.1 Scope 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
12、 parts or components. NOTE This procedure is not intended to be used for qualitative analysis of corrosion products. 1.1.2 This 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
13、 outgassing of the material. 2 Test resources 2.1 Material 2.1.1 Copper metal strips shall be used. The size of the metal strips 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 bo
14、ard clad with copper on one entire side may be substituted for copper strips. 2.1.2 Crocus cloth 2.1.3 Alcohol, isopropyl, AR 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 Preparat
15、ion 3.2.1 Surface oxides shall be removed from the copper substrate with a clean crocus cloth. 3.2.2 The substrate shall then 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
16、secured to the substrate with a waxed noncorrosive string or equivalent. 3.2.4 The specimen shall be attached to the metal strip 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,
17、 unless otherwise specified in the referencing document. 3.2.6 All preparation shall be preformed no more than 2. 0 hours prior 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 place
18、d in an individual polyethylene bag of a size equal to or slightly larger that the test specimen. One specimen shall be contained 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 di
19、lute or remove corrosion products or particulates from the specimens and/or substrates involved. 4.2 A metal substrate without 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 sp
20、ecimens shall be exposed to 10 days of cyclic humidity in accordance with EIA-364-31, method III, deleting steps 7a and 7b, and 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
21、of the test specimens from the metal substrate. 4.5 After removal of the test specimens from the metal substrate, the substrates 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
22、 specimen, shall be reported. 5 Details to be specified The following details shall be specified in the referencing document: 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 d
23、escription 6.3 Test equipment used, and date of last and next calibration 6.4 Room ambient temperature and humidity 6.5 Test procedure 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 cha
24、nge is made 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. Docum
25、ent 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: Electronic Components Industry Association 2214 Rock Hill Road, Suite 265 * Herndon, VA 20170 * tel 571-323-0294 * fax 571-323-0245 www.ecianow.org
