BAIJIAN - Third party testing organization
This standard specifies the terms and definitions、 classification、 usage conditions、 technical requirements、 and test methods of air thermal aging test chambers. Inspection rules、 markings、 packaging、 transportation、 and storage. This standard is applicable to natural convection and forced convection air thermal aging test chambers (hereinafter referred to as aging chambers). The following normative references are essential for the application of this document. For dated references、 only the dated version applies to this document. For undated references、 the new version (including all modification orders) applies to this document. GB/T 191-2008 Packaging、 Storage、 and Transport Graphical Symbols GB4793.1-2007 Safety Requirements for Electrical Equipment for Measurement、 Control、 and Laboratory Use Part 1: General Requirements GB 4793.6-2008 Measurement、 Safety requirements for electrical equipment for control and laboratory use - Part 6: Special requirements for heating equipment for laboratory use GB/T5465.2-2008 Graphical symbols for electrical equipment - Part 2: Graphical symbols GB/T 1895.10-2010 Low voltage electrical installations - Part 444: Safety protection against voltage and electromagnetic disturbances - JB/T12571-2018 Emission noise from environmental testing equipment - Determination of emission sound pressure levels at working positions and other designated positions - SJT11364-2014 Requirements for Restriction and Identification of Hazardous Substances in Electronic and Electrical Products - Terminology and Definitions - The following terms and definitions apply to this document. 3.1 Hot air aging test chamber A sealed box or space with a specified high temperature and fresh air exchange rate. 3.2 Ventilation rate refers to the number of fresh air changes during a given high temperature and time period. 3.3 Temperature uniformity is the maximum value of the difference between the average temperature values of any two points in the working space within a specified time interval under a stable state. 3.4 Temperature Fluctuation Under stable state、 the working space is arbitrary within the specified time interval- The change in point temperature over time. 3.5 Temperature stability: The * large * * value of the difference between the average temperature (measured multiple times) at the center point of the workspace and the starting temperature r mean at a specified long time interval in a stable state
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Function of testing report:
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1. Telephone communication and confirmation of requirements
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