GB/T 2423.3-2016 English PDF (GBT2423.3-2016)

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GB/T 2423.3-2016: Environmental testing - Part 2: Testing method - Test Cab: Damp heat, steady state
GB/T 2423.3-2016
Environmental testing - Part 2. Testing method - Test Cab. Damp heat, steady state
ICS 19.040
K04
National Standards of People's Republic of China
Replacing GB/T 2423.3-2006
Environmental testing - Part 2. Test Method
Test Cab. Damp heat test
(IEC 60068-2-78.2012, Environmentaltesting-Part 2-78. Tests-
TestCab. Dampheat, steadystate, IDT)
Published 2016-12-13
2017-07-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China issued
Table of Contents
Preface Ⅰ
Introduction Ⅱ
1 Scope 1
2 Normative References 1
Terms and definitions 1 3
4 1 Test Overview
5 detects 2
6 specifications related information should be given 3
7 the information to be given in 3 test report
Appendix NA (Information Appendix) GB/T 2423 standard part 5
Foreword
Part of GB/T 2423 standard, see informative annex NA.
This section GB/T 2423 Part 3.
This section drafted in accordance with the rules GB/T 1.1-2009 given.
This partial replacement GB/T 2423.3-2006 "Environmental testing electric and electronic products - Part 2. Test Method Test Cab. constant
Damp heat test ", compared to major technological changes and GB/T 2423.3-2006 as follows.
--- the structure of this part is to rearrange;
--- increased introduction and Chapter 7, "Information should be given in the test report";
4.1 --- seventh line, the original "water resistivity and humidity should be maintained not less than 500Ω · m" to "water conductance humidity
Rate should be kept not more than 20μS/cm ";
--- deleted GB/T 2423.3-2006 Chapter 9, "Recovery" for the specific requirements of the recovery conditions.
This part is identical translation method using IEC 60068-2-78.2012 "Environmental testing - Part 2-78. Test Test Cab. constant
Damp heat test. "
Consistency correspondence relationship with international documents in this section of our normative references the following documents.
--- GB/T 2421.1-2008 Environmental testing for electric and electronic products overview and guidance (IEC 60068-1. 1988, IDT);
--- GB/T 2424.6-2006 electric and electronic products environmental testing temperature/humidity chamber Confirmation of the performance (IEC 60068-3-6.
2001, IDT);
--- GB written application and basic safety publications and multi-disciplinary common security publications/T 16499-2008 security publications
Guide (IEC 104 Guide.1997, NEQ).
This part of IEC 60068-2-78. compared to 2012, mainly to do the following editorial changes.
--- changed name in this section. "Environmental testing - Part 2. Test Method Test Cab. Damp heat test";
--- increasing the informative appendix NA "GB/T 2423 standard part of."
This part of the proposed and managed by the National Electrical and Electronic Products Environmental conditions and environmental tests Standardization Committee (SAC/TC8).
This part of the drafting units. China Electric Apparatus Research Institute Co., Ltd., Jining semiconductor and display products for Quality Supervision and Inspection Center, Guangdong
Grid Electric Power Research Institute Co., Ltd., China National Aviation Holding Company Beijing Great Wall Institute of Measurement and Testing Technology, Wuxi Sunan test set
By the Limited.
The main drafters of this section. Xu Xuedong, Huang Kaiyun, Yan Kai, Lv Wangyan, Lv Guoyi, Ni Yiming, Fu Qiang.
This section replaces the following previously issued as follows.
--- GB/T 2423.3-1981, GB/T 2423.3-1993, GB/T 2423.3-2006;
--- GB/T 2423.9-1989, GB/T 2423.9-2001.
introduction
This part of GB/T 2423 provides a sample at a constant temperature, no condensation, high humidity test methods over a predetermined time environmental impact.
This test provides a sample to evaluate the effects of water vapor absorption and diffusion.
Environmental testing - Part 2. Test Method
Test Cab. Damp heat test
1 Scope
Adaptability of when GB/T 2423 specifies the present section determining element or device used under conditions of high humidity, storage and transport
method.
Purpose of this section is a predetermined constant for determining the temperature within the time, the influence of non-condensing humidity environment test sample.
This section applies to small devices or elements, are also suitable for larger devices, apply to both heat and non-heat test sample.
2 Normative references
The following documents for the application of this document is essential. For dated references, only applies to the version dated paper
Pieces. For undated references, the latest edition (including any amendments) applies to this document.
IEC 60068-1 Environmental testing - Part 1. Overview and guidance (Environmental testing-Part 1. General and guidance)
3 Terms and Definitions
4 Test Overview
4.1 chamber and measurement systems
Temperature/humidity chamber should be required to be installed to confirm IEC 60068-3-6.
Chamber and measurement systems shall be as follows.
--- sensors should be mounted in the working space of the chamber to monitor the temperature/humidity;
NOTE. For heat test sample, the test sample affects the cooling temperature and humidity near the test sample position.
--- chamber condensate discharge chamber should be continuous, if not discharged condensate purification can not be reused;
Condensate --- the inner wall of the chamber and the top should not drip on the test sample;
--- water conductivity humidity in the test chamber should be kept not more than 20μS/cm;
--- Test of the test sample should not be subject to direct heat radiation of the air conditioner;
--- The spray system of the test chamber, the test sample should be away from the injection port, and the moisture is not directly projected onto the sample;
--- volume of the chamber is at least five times the volume of the test sample;
Unless otherwise specified in the relevant specification --- When using mounting bracket, with minimal impact to deal with temperature and humidity exchange between the test sample and the surrounding environment.
4.2 severities
The severity of the test temperature, relative humidity, together determine the duration of the test. Unless the relevant specification, and the temperature of the test phase
Humidity should be selected in Table 1.
Table 1 Temperature and relative humidity
temperature
Relative humidity RH
30 ± 2 93 ± 3
30 ± 2 85 ± 3
40 ± 2 93 ± 3
40 ± 2 85 ± 3
Recommended duration. 12h, 16h, 24h and 2d, 4d, 10d, 21d or 56d.
The total temperature tolerance of ± 2K absolute error is taken into account, the temperature gradient and the temperature in the working space during testing. In order to maintain
The relative humidity of the test chamber within a predetermined tolerance range must be maintained between any two points in the test chamber to make the temperature difference at any time
As small as possible. If the temperature difference over 1K, then can not achieve the desired humidity. Short-term temperature fluctuations must be maintained in the range ± 0.5K
In order to maintain the desired humidity conditions.
4.3 Pretreatment
Related specifications may require pretreatment.
4.4 Test Conditions
Test samples should be placed in the relevant norms required chamber. Unless otherwise specified, it should be no packaging, no power, "ready to use" shape
State test sample was placed in a test chamber.
In particular, when the relevant specifications may allow test sample was placed in the test chamber reached test conditions, and should be av...