DZ/T 0101.12-1994
Active
JJG 686-2015
Active
National Metrology and Inspection Regulations JJG
JJG 686-2015 Hot Water Meters
JJG 686-2015 Hot Water Meters
Basic Information
Standard Code:
JJG 686-2015
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
-
ICS Name:
-
Publish Date:
2015-04-10
Implement Date:
2015-10-10
Pages:
18 pages
Scope
This regulation applies to the initial verification, subsequent verification, and in-use inspection of hot water meters with a nominal diameter not exceeding 300 mm (hereinafter referred to as hot water meters).
The hot water meters referred to in this regulation are those used to measure hot water flowing through fully closed pipes, with a temperature range of T70 to T130, including mechanical hot water meters, mechanical hot water meters equipped with electronic devices, and hot water meters operating based on electromagnetic or electronic principles.
Development Information
Replace the following standards
Referenced Standards
JJG 162-2009
JJG 164-2000 Standard Facilities for Liquid Flowrate
GB/T 778.1-2007 Measurement of water flow in fully charged closed conduits—Meters for cold potable water and hot water—Part 1:Specifications
GB/T 778.2-2007 Measurement of water flow in fully charged closed conduits—Meters for cold potable water and hot water—Part 2:Installation requirements
GB/T 778.3-2007 Measurement of water flow in fully charged closed conduits—Meters for cold potable water and hot water—Part 3:Test methods and equipment
OIML R49-1:2013(E)
OIML R49-2:2013(E)
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