Standard No.:	GB/T 2424.7-2006
Chinese Name:	电工电子产品环境试验 试验A和B(带负载)用温度试验箱的测量
English Name:	Environmental tests for electric and electronic products - Measurements in temperature chambers for tests A and tests B (with load)
Professional Classification:	K04 Basic standards and general methods
Professional Classification:	GB National Standard
ICS Classification:	19.040
Issued by:
Issued on:	2007-03-26
Implemented on:	2007-09-01
Status:	VALID
Language:	English
File Format:	PDF
Word Count:
Price(USD):	please email coc@codeofchina.com for quotation
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1 Scope

This part of GB/T 2424 provides a uniform and reproducible method of confirming that temperature test chambers conform to the requirements specified in climatic test procedures of GB/T 2423.1 and GB/T 2423.2, when loaded with either heat-dissipating or non heat-dissipating specimens under conditions which take into account air circulation inside the working space of the chamber. This standard is destined primarily for users when conducting regular chamber performance monitoring.

2 Normative references

The following normative documents contain provisions which, through reference in this part, constitute provisions of this part. For dated references, subsequent amendments (excluding corrections) to, or revisions, of any of these publications do not apply. However, parties to agreements based on this part are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest editions apply to this part.

GB/T 2423.1 Environmental testing for electric and electronic and electronic products - Part 2: Test methods - Tests A: Cold (GB/T 2423.1-2001, IEC 60068-2-1: 1990, IDT)
GB/T 2423.2-2001 Environmental testing for electric and electronic products - Part 2: Test methods - Test B: Dry heat (IEC 60068-2-2:1974, IDT)
GB/T 2424.1-2005 Environmental testing for electric and electronic products - Guidance for high temperature and low temperature tests (IEC 60068-3-1: 1974 and IEC 60068-3-1A: 1978, IDT)
GB/T 2424.5-2006 Environmental tests for electric and electronic products - Confirmation of the performance of temperature chambers (IEC 60068-3-5: 2001, IDT)
GB/T 2424.6-2006 Environmental testing for electric and electronic products - Confirmation of the performance of temperature/humidity chambers (IEC 60068-3-6: 2001, IDT)
GB/T 16839.1 Thermocouples - Part 1: Reference tables (GB/T 16839.1-1997, IEC 60584-1: 1995, IDT)
IEC 60751 Industrial platinum resistance thermometer sensors

3 Terms and definitions

For the purposes of this part, the following terms and definitions apply.

3.1
test specification
procedure applied to test chambers with or without forced air circulation; suitable for a wide range of chamber sizes

Note: a summary of test conditions in GB/T 2423.1 and GB/T 2423.2 is given in Table 1.