This standard is equivalent to IEC 60721-1:2002 and is a revision of GB/T 4796-2001. This standard specifies the parameters and severity of environmental conditions encountered by electrical and electronic products during transportation, storage, installation and use. This standard replaces GB/T 4796-2001. This standard is equivalent to the international standard IEC60721-1:2002 "Classification of environmental conditions Part 1: Environmental parameters and their severity" (English version). The following editorial changes have been made: - The foreword and introduction of the international standard have been deleted; - The foreword of the national standard has been added; - The national standard that adopts the international standard has been cited. GB/T 4796-2008 Classification of environmental conditions for electric and electronic products Part 1: Environmental parameters and their severity GB/T4796-2008 Standard download decompression password: www.bzxz.net
This standard is equivalent to IEC 60721-1:2002, which is a revision of GB/T 4796-2001. This standard specifies the parameters and severity of environmental conditions encountered by electric and electronic products during transportation, storage, installation and use. This standard replaces GB/T4796-2001. This standard is equivalent to the international standard IEC60721-1:2002 "Classification of environmental conditions Part 1: Environmental parameters and their severity" (English version). The following editorial changes have been made: ---deleted the foreword and introduction of the international standard; ---added the foreword of the national standard; ---cited the national standard that adopted the international standard.
class="f14" style="padding-top:10px; padding-left:12px; padding-bottom:10px;"> This standard is equivalent to the international standard IEC60721?1:2002 "Classification of environmental conditions Part 1: Environmental parameters and their severity"
(English version). The following editorial changes have been made:
---deleted the foreword and introduction of the international standard;
---added the foreword of the national standard;
---cited the national standard that adopted the international standard.
This standard replaces GB/T4796-2001. Compared with GB/T4796-2001, the main differences are shown in the following table:
Chapter 2001 version This version
1.3.1 in Table 1 53 53
1.3.2 in Table 1 200 200
× in column A × in column W

6.1.1 Type A spectrum in Table 1: Peak displacement S^, 1.5mm Peak displacement S^, mm
6.1.2 in Table 1 2 Hz
The following documents have become the terms of this standard through reference in this standard. For dated referenced documents, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties to an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For undated referenced documents, the latest versions shall apply to this standard.
GB/T2423.5-1995 Environmental testing for electric and electronic products Part 2: Test methods Test Ea and guidance: Shock (idtIEC60068-2-27:1987)
GB3836.1-2000 Electrical apparatus for explosive gas atmospheres Part 1: General requirements (eqvIEC60079-0:1998)
GB/T4797.5-1992 Natural environmental conditions for electric and electronic products Precipitation and wind (neqIEC60721-2-2:1988)
GB/T4798.6-1996 Environmental conditions for application of electric and electronic products Marine (idtIEC60721-3-6:1987)
Foreword III
1 Scope 1
2 Normative references 1
3 Terms and definitions 1
4 Environmental factors and parameters 2

ICS19.040
National Standard of the People's Republic of China
GB/T4796—2008/IEC60721-1:2002 replaces GB/T4796—2001
Classification of environmental conditions of electric and electronic products-Part 1:Environmental parameters and their severity severities (IEC60721-1:2002, IDT)
Released on March 24, 2008
Digital anti-counterfeiting
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Standardization Administration of China
Implementation on October 1, 2008
2 Normative references
3 Terms and definitions
Environmental factors and parameters
GB/T4796—2008/IEC60721-1:2002Foreword
GB/T4796—2008/IEC60721-1:2002 This standard is equivalent to the international standard IEC60721-1:2002 "Classification of environmental conditions (English version)". The following editorial changes were mainly made: the foreword and introduction of the international standard were deleted; the foreword of the national standard was added:
The national standard adopting the international standard was cited. Part 1: Environmental parameters and their severity" This standard replaces GB/T4796-2001. Compared with GB/T4796-2001, the main differences are shown in the following table: Chapters
1.3.1 in Table 1
1.3.2 in Table 1
6.1.1 in Table 1
6.1.2 in Table 1
6.4 in Table 1
6.5 in Table 1
6.8 row in Table 1bZxz.net
7.3 row in Table 1
2001 version
×\ in column A
Type A spectrum: peak displacement s, 1.5mm
2Hz
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