Specifications for low temperature test chambers
1 Scope
This standard specifies the terms and definitions, service conditions, technical requirements, test methods, inspection rules as well as marking, packaging and storage for low temperature test chamber (hereinafter referred to as “test chamber”).
This standard is applicable to the test chambers for low temperature test of electrical, electronic and other products, parts and components and materials.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding any corrigendum), or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the latest editions of the standards indicated below. For undated references, the latest edition applies.
GB/T 191-2008 Packaging - Pictorial marking for handling of goods (ISO 780:1997, MOD)
GB 14048.1-2006 Low-voltage switchgear and controlgear - Part 1: General rules (IEC 60947-1:2001, MOD)
JB/T 9512-1999 Climate environmental testing equipment and cabinet-determination of sound power level of noise emitted
JJF 1059-1999 Evaluation and expression of uncertainty in measurement
3 Terms and definitions
For the purpose of this standard, the following terms and definitions apply.
3.1
test chamber
enclosed box and space where a certain part can meet the specified test conditions
3.2
temperature setpoint
desired temperature as set by the test chamber control device
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Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Service conditions
5 Technical requirements
6 Test methods
7 Inspection rules
8 Marking, packaging and storage
Annex A (Informative) Discrimination method for suspicious data
Annex B (Informative) Evaluation of uncertainty of temperature variation measurement
