PREN 12405-2 : DRAFT 2009
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
GAS METERS - CONVERSION DEVICES - PART 2: ENERGY CONVERSION
01-07-2012
12-01-2013
Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Principles of energy determination
5 Rated operating conditions
6 Construction requirements
7 Installation requirements
8 Metrological requirements
9 Tests of conformity
10 Marking
11 Installation and operating instructions
Annex A (normative) - Type test of the energy calculator
(EC)
Annex B (normative) - Type test of the calorific value
determination device (CVDD)
Annex C (normative) - Type approval tests of volume
conversion device (VCD)
Annex D (informative) - Type approval test of VCD, EC and
CVDD
Annex E (normative) - Type approval test of the VCD/EC
Annex F (informative) - Type approval test of the EC/CVDD
Annex G (normative) - Type approval test of the VCD/EC/CVDD
Annex H (normative) - Environmental influences (test
procedures)
Annex I (informative) - Testing of the data transmission
interface of energy conversion
device
Bibliography
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