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1、EIA STANDARD TP-31B Humidity Test Procedure for Electrical Connectors and Sockets EIA-364-31B (Revision of EIA-364-31A) MAY 2000 ELECTRONIC COMPONENTS, ASSEMBLIES e.g. in a chamber volume 2 cubic meters (71 cubic feet), air flow shall be 10 cubic meters per minute (353 cubic feet per minute). Howeve
2、r, provisions shall be made for controlling the flow of air throughout the internal test chamber area so that the velocity of air shall not exceed 46 meters per minute (150 feet per minute). Steam, or distilled, demineralized, or deionized water shall be used to obtain the specified humidity. No rus
3、t or corrosion contaminants shall be imposed on the test specimen by the test facility. Copyright Electronic Components, Assemblies see 4.3.3; using a simple harmonic motion of 0.15 millimeter (0.006 inch) maximum total excursion, the frequency being varied uniformly between the approximate limits o
4、f 10 and 55 Hz. The entire frequency range, from 10 to 55 Hz and return to 10 Hz, shall be traversed in approximately one minute. 4.4 Method IV, cycling temperature - humidity with optional cold shock 4.4.1 Conditioning The specimens shall be conditioned in a dry oven at a temperature of 50 C (122 F
5、) for 24 hours. At the end of this period, measurements shall be made as specified in the referencing document. 4.4.2 Mounting The connectors shall be mounted by their normal mounting means, in their normal mounting position, but shall be positioned so that they do not contact each other, and so tha
6、t each specimen receives essentially the same degree of humidity. Copyright Electronic Components, Assemblies see 4.1.3, 4.2.3, 4.3.3, 4.4.3 or 4.5.3. 5.3 Test conditions (length); see table 1 5.4 Polarizing voltage and load, the length of time, and points of application; see 4.1.5, 4.2.4, 4.3.4, 4.
7、4.4, or 4.5.4 5.5 Method III, IV or V; conducting subcycles step 7a or step 7b, or both, if desired 5.6 Final measurement; see 4.6 5.6.1 At high humidity; see 4.6.1 5.6.2 During recovery period; see 4.7 Copyright Electronic Components, Assemblies see 4.8 5.7 Number of specimens to be tested 5.8 Defi
8、ne test specimen, mated or unmated 5.9 Wire type, size, and sealing plugs, if applicable; see 3.2 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 including fixturing; if applicable 6.3 T
9、est equipment used, and date of last and next calibration 6.4 Test procedure and duration 6.5 Values and observations, initial and final ambient conditions 6.6 Name of operator and date of test Copyright Electronic Components, Assemblies & Materials Association Provided by IHS under license with ECA
10、 Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 23:22:02 MDTNo reproduction or networking permitted without license from IHS -,-,- EIA-364-31B Page 11 Copyright Electronic Components, Assemblies & Materials Association Provided by IHS under license with ECA Licensee=
11、IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 23:22:02 MDTNo reproduction or networking permitted without license from IHS -,-,- EIA-364-31B Page 12 Copyright Electronic Components, Assemblies & Materials Association Provided by IHS under license with ECA Licensee=IHS Employ
12、ees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 23:22:02 MDTNo reproduction or networking permitted without license from IHS -,-,- EIA-364-31B Page 13 NOTE For optional cold shock subcycle, see 4.5.6.1. For a graphical representation of the cold shock subcycle, see figure 2. Figure 3 -
13、Graphical representation of method V humidity cycling test Copyright Electronic Components, Assemblies & Materials Association Provided by IHS under license with ECA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 23:22:02 MDTNo reproduction or networking permitted wi
14、thout license from IHS -,-,- Copyright Electronic Components, Assemblies & Materials Association Provided by IHS under license with ECA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 23:22:02 MDTNo reproduction or networking permitted without license from IHS -,-,- E
15、IA 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 to: Electronic Industries Alliance Engineering Department Publications Office 2500 W
16、ilson Blvd. Arlington, VA 22201 FAX: (703) 907-7501 Document No.Document Title: 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: Addit
17、ional Remarks: Signature:Date: FOR EIA USE ONLY Responsible Committee: Chairman: Date comments forwarded to Committee Chairman: Copyright Electronic Components, Assemblies & Materials Association Provided by IHS under license with ECA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resa
18、le, 03/29/2007 23:22:02 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright Electronic Components, Assemblies & Materials Association Provided by IHS under license with ECA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 23:22:02 MDTNo
19、reproduction or networking permitted without license from IHS -,-,- Copyright Electronic Components, Assemblies & Materials Association Provided by IHS under license with ECA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 23:22:02 MDTNo reproduction or networking per
20、mitted without license from IHS -,-,- Copyright Electronic Components, Assemblies & Materials Association Provided by IHS under license with ECA Licensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/29/2007 23:22:02 MDTNo reproduction or networking permitted without license from IHS -,-,-