GB/T 20643.1-2025 English PDFUS$439.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 20643.1-2025: Special environmental condition - Environmental test method - Part 1: General Status: Valid GB/T 20643.1: Historical versions
Basic dataStandard ID: GB/T 20643.1-2025 (GB/T20643.1-2025)Description (Translated English): Special environmental condition - Environmental test method - Part 1: General Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: K04 Classification of International Standard: 19.040 Word Count Estimation: 22,234 Date of Issue: 2025-08-01 Date of Implementation: 2026-02-01 Older Standard (superseded by this standard): GB/T 20643.1-2006 Issuing agency(ies): State Administration for Market Regulation, Standardization Administration of China GB/T 20643.1-2025: Special environmental condition - Environmental test method - Part 1: General---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT20643.1-2025National Standard of the People's Republic of China ICS 19.040CCS K 04 Environmental test methods for special environmental conditions Part 1.General Special environmental condition-Environmental test method- Part 1.General Released on August 1, 2025 2026-02-01 Implementation State Administration for Market Regulation The National Standardization Administration issued Replaces GB/T 20643.1-2006 Table of ContentsPreface Ⅲ Introduction Ⅳ 1 Scope...1 2 Normative references 1 3 Terms and Definitions 1 4 Special environmental conditions...1 4.1 Overview 1 4.2 Dry heat and dry hot desert environmental conditions 1 4.3 Plateau Environmental Conditions 1 4.4 Humid and hot ocean environmental conditions 1 4.5 Cold Environmental Conditions 3 5 Test methods 4 5.1 Overview 4 5.2 Natural atmosphere exposure test 4 5.3 Artificial simulation test 5 5.4 Test data processing and result evaluation 6 Appendix A (Informative) General Guidelines for Environmental Testing 7 References 15 Table 1 Parameters of hot and humid climate environment conditions...2 Table 2 Parameters of humid and hot marine climate environmental conditions...2 Table 3 Cold climate environmental condition parameters...3 Table 4 Recommended test methods under special environmental conditions 5 Preface This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting is required. This document is Part 1 of GB/T 20643 “Environmental test methods for special environmental conditions”. GB/T 20643 has been published in Lower part. --Part 1.General provisions; -- Part 2.Artificial simulation test methods and guidelines for electrical and electronic products (including communication products); -- Part 3.Artificial simulation test methods and guidelines for polymer materials. This document replaces GB/T 20643.1-2006 "Environmental test methods for special environmental conditions Part 1.General principles" and Compared with GB/T 20643.1-2006, in addition to structural adjustments and editorial changes, the main technical changes are as follows. a) The content of “Environmental conditions” has been modified to include special environmental conditions such as humid heat (including humid heat ocean) and cold weather (see Chapter 4,.2006). 3 of the.2011 edition); b) “Sample delivery time” was deleted (see 4.2.4 of the.2006 edition); c) The content of “Test time” has been changed (see 5.2.4, 4.2.5 of the.2006 edition); d) The content of “standard atmospheric conditions” has been modified (see 5.3.1, 4.3.1 of the.2006 edition); e) The content of “Selection of artificial simulation test methods” has been changed to add hot and humid environment, hot and humid ocean, cold special environment, and recommended test Method, added heat and humidity, salt spray, mold, lightning strike, earthquake test, deleted corrosive atmosphere (salt spray resistance), comprehensive test, coating Anti-peeling test, vibration (sinusoidal), antistatic test (see 5.3.4, 4.3.4 of the.2006 edition); f) “Climatic test sequence selection” has been deleted (see 4.3.5 of the.2006 edition). Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document is proposed and coordinated by the China Electrical Equipment Industry Association. This document was drafted by. China Electric Power Research Institute Co., Ltd., Jiangsu Tomilo High-end Equipment Co., Ltd., Southern Electric Grid Integrated Energy Co., Ltd., Shenzhen Inspection Group (Dongguan) Quality Technology Service Co., Ltd., Guangdong Power Grid Co., Ltd. Electric Power Science Research Institute, Tsinghua University Shenzhen International Graduate School, Shenzhen INVT Electric Vehicle Drive Technology Co., Ltd., Mingyang Smart Energy Group Co., Ltd. China Mobile (Hangzhou) Information Technology Co., Ltd., Chongqing Artec Technology Co., Ltd., Shenzhen Polytechnic, Chinese Academy of Sciences Institute of Space Application Engineering and Technology, University of Science and Technology Beijing, China Special Aircraft Research Institute, General Machinery Key Core Basic Parts Innovation Center Center (Anhui) Co., Ltd., Hainan Power Grid Co., Ltd., and State Grid Fujian Electric Power Co., Ltd. Electric Power Research Institute. The main drafters of this document are. Jie Ganxin, Xu Xuedong, Zhao Ruijie, Xia Yunfeng, Zhu Jianhua, Liang Yongchun, Wang Xilin, Gao Jun, Cao Qi, Shen Yuanhai, Zhang Jie, Chen Shuling, Li Peng, Xia Xiaojian, Cheng Xuequn, Liu Yuanhai, Fang Lianhang, Huang Qian, Wang Linli, Jia Zhidong, Li Qiang, and Yan Kanghua. The previous versions of this document and the documents it replaces are as follows. --First published in.2006 as GB/T 20643.1-2006; --This is the first revision.introductionGB/T 20643 "Environmental test methods for special environmental conditions" covers the test methods for products and components in my country's dry heat, dry hot desert, plateau, Artificial simulation test methods and guidelines for special climate types such as humid heat, humid heat ocean, and cold. Currently, GB/T 20643 consists of three parts. constitute. -- Part 1.General. The purpose is to provide general rules for natural atmosphere exposure tests and artificial simulation tests under special environmental conditions. and gives general guidelines for environmental testing. -- Part 2.Artificial simulation test methods and guidelines for electrical and electronic products (including communication equipment). Artificial simulation test methods and guidelines for products (including communication equipment) under special environmental conditions. -- Part 3.Artificial simulation test methods and guidelines for polymer materials. The purpose is to propose the test methods and guidelines for polymer materials under special environmental conditions. Artificial simulation test methods and guidelines. "Special environmental conditions test" is to expose the sample to natural or artificial simulated conditions such as dry heat, dry hot desert, plateau, humid heat, The special climate characteristics of hot and humid oceans, cold regions, etc., thus affecting the storage, transportation and If required by the relevant standards, these test methods can also be used for type testing, batch sampling testing, Quality inspection test and other types of tests. Environmental test methods for special environmental conditions Part 1.General1 ScopeThis document specifies natural atmospheric exposure tests under special environmental conditions such as dry heat, dry hot desert, plateau, humid heat, humid hot ocean, and cold and general requirements for artificial simulation tests, test data processing and result evaluation. This document applies to the selection of appropriate environmental tests for electrical and electronic products (including complete machines, components and materials) when used in special environmental conditions. method.2 Normative referencesThe contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 20625-2024 Terminology for special environmental conditions3 Terms and DefinitionsThe terms and definitions defined in GB/T 20625-2024 apply to this document.4 Special environmental conditions4.1 Overview This document covers special environmental climate types, namely, dry heat, dry hot desert, plateau, humid heat, humid hot ocean, and cold areas in my country. 4.2 Dry-hot and dry-hot desert environmental conditions Hot and dry climate refers to the annual extreme values of daily average temperature and humidity, with a low temperature of -15 ℃, a high temperature of 36 ℃, and a maximum absolute humidity of 15 g/m3 climate. Dry hot desert climate refers to a climate type characterized by insufficient water supply for visible plants to survive. Type, an extremely arid climate, is characterized by high heat (dry heat), strong ultraviolet radiation and very low relative humidity. For dry heat environmental conditions, see GB/T 19608.1-2022. For dry hot desert environmental conditions, see GB/T 19608.2-2022. 4.3 Plateau environmental conditions Plateau climate refers to the climate formed by the geographical conditions of the plateau, with the main characteristics of low air pressure, low temperature, large temperature difference between day and night, and absolute humidity. Low, the intensity of solar radiation, especially ultraviolet radiation, is strong. For plateau environmental conditions, see GB/T 19608.3-2004. 4.4 Humid and hot marine environmental conditions Hot and humid climate refers to the annual extreme values of daily average temperature and humidity, with a low temperature of 9 ℃, a high temperature of 35 ℃, and a maximum absolute humidity of ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 20643.1-2025_English be delivered?Answer: Upon your order, we will start to translate GB/T 20643.1-2025_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 20643.1-2025_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 20643.1-2025_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 20643.1-2025?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 20643.1-2025 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
