GB/T 12452-2008
Replaced
T/ZZB 1844-2020
Active
Group standards
T/ZZB 1844-2020 Critical Flow Venturi Nozzle Method for Gas Flow Standard Apparatus
T/ZZB 1844-2020 Critical Flow Venturi Nozzle Method for Gas Flow Standard Apparatus
Price:
$ 20.00
Basic Information
Standard Code:
T/ZZB 1844-2020
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Social public safety
ICS Name:
The comprehensive measurement of fluid flow
Publish Date:
2020-11-16
Implement Date:
2020-11-30
Scope
Main technical content: This document specifies the terms and definitions, product classification, basic requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage, installation and commissioning, and quality commitments of the critical flow Venturi nozzle gas flow standard device (hereinafter referred to as the standard device). This document is applicable to the critical flow Venturi nozzle (hereinafter referred to as the nozzle) gas flow standard device.
Development Information
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GB/T 12452-2022 General principles of water balance test
GB/T 42031-2022
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GB/T 42031-2022 Drawing method of water balance diagram for water-use organization
DB4401/T 70-2020
Active