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Database: 189759 (26 Oct 2025)
DL/T 662.1-2021 English PDF
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DL/T 662.1-2021
: (Technical requirements for sulfur hexafluoride gas recovery device - Part 1: Sulfur hexafluoride gas recovery device)
Status: Valid
DL/T 662.1: Evolution and historical versions
Standard ID
Contents [version]
USD
STEP2
[PDF] delivered in
Standard Title (Description)
Status
PDF
DL/T 662.1-2021
English
309
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3 days [Need to translate]
(Technical requirements for sulfur hexafluoride gas recovery device - Part 1: Sulfur hexafluoride gas recovery device)
Valid
DL/T 662.1-2021
DL/T 662-2009
English
479
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3 days [Need to translate]
Specification for SF6 gas refilling and recovery device
Obsolete
DL/T 662-2009
DL/T 662-1999
English
399
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3 days [Need to translate]
Specification for SF 6 gas refilling and recovery device
Obsolete
DL/T 662-1999
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Basic data
Standard ID
DL/T 662.1-2021 (DL/T662.1-2021)
Description (Translated English)
(Technical requirements for sulfur hexafluoride gas recovery device - Part 1: Sulfur hexafluoride gas recovery device)
Sector / Industry
Electricity & Power Industry Standard (Recommended)
Classification of Chinese Standard
K15
Word Count Estimation
13,144
Issuing agency(ies)
National Energy Administration
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