• There are no items in your cart
We noticed you’re not on the correct regional site. Switch to our AMERICAS site for the best experience.
Dismiss alert

NEN EN 12405-1 : 2005 + A2 2010

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

View Superseded by
withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

GAS METERS - CONVERSION DEVICES - PART 1: VOLUME CONVERSION
Withdrawn date

22-10-2018

Published date

12-01-2013

Foreword
1 Scope
2 Normative references
3 Terms, definitions and symbols
   3.1 Terms and definitions
   3.2 Symbols
4 Principle of measurement
   4.1 Conversion as a function of temperature
   4.2 Conversion as a function of pressure and temperature
   4.3 Conversion as a function of pressure, temperature and
        deviation from the ideal gas law
   4.4 Correction of the volume at measurement conditions
5 Rated operating conditions
   5.1 Specified field of measurement
   5.2 Environmental class
   5.3 Power supply
6 Construction requirements
   6.1 General
   6.2 Casings
   6.3 Indications
   6.4 Inputs for volume conversion
   6.5 Battery powered conversion device
   6.6 Security devices and alarms
7 Installation requirements
   7.1 General
   7.2 Temperature transducer
   7.3 Pressure transducer
8 Performance
   8.1 Reference conditions
   8.2 Rated operating conditions
   8.3 Maximum permissible errors
   8.4 Conditions of matching the constituent elements of a
        conversion device type 2
   8.5 Influence factors
   8.6 Disturbances
   8.7 Durability
9 Tests of conformity
   9.1 Verification of the construction requirements
   9.2 Verification of the performance requirements
   9.3 Test report
10 Marking
Annex A (normative) Type test
                    A.1 General conditions
                    A.2 Accuracy tests under reference conditions
                    A.3 Effect of ambient temperature
                    A.4 Effect of damp heat, steady state test
                    A.5 Effect of damp heat, cyclic test
                    A.6 Electrical power variation
                    A.7 Short time power reductions
                    A.8 Electrical bursts
                    A.9 Electromagnetic susceptibility
                    A.10 Electrostatic discharges
                    A.11 Overload of pressure (only for type 1 and
                         pressure transducers)
                    A.12 Effect of vibrations
                    A.13 Effect of shocks
                    A.14 Overload of pressure (mechanical)
                    A.15 Durability
                    A.16 Alarms operation
Annex B (normative) Pressure transducers
                    B.1 Scope
                    B.2 Rated operating conditions
                    B.3 Construction requirements
                    B.4 Performances
                    B.5 Tests of conformity
                    B.6 Marking
Annex C (normative) Platinum resistance thermometer sensors
                    C.1 Scope
                    C.2 Operating rated conditions
                    C.3 Construction requirements
                    C.4 Performances
                    C.5 Marking
                    C.6 Metrological verifications
                    C.7 Verification procedure
Annex D (normative) Temperature transducers
                    D.1 Scope
                    D.2 Rated operating conditions
                    D.3 Construction requirements
                    D.4 Performances
                    D.5 Tests of conformity
                    D.6 Marking
Annex E (informative) Model type test report for conversion devices
                      E.1 General
                      E.2 Accuracy tests under reference conditions
                      E.3 Ambient temperature
                      E.4 Effect of damp heat, steady state test
                      E.5 Effect of damp heat, cyclic test
                      E.6 Electrical power variation
                      E.7 Short time power reductions
                      E.8 Electrical bursts
                      E.9 Electromagnetic immunity
                      E.10 Electrostatic discharges
                      E.11 Effect of an overload of static pressure
                      E.12 Effect of vibrations
                      E.13 Effect of shocks
                      E.14 Mechanical resistance to overload of
                           static pressure
                      E.15 Durability
Annex F (informative) Model type test report for associated
                      transducers
                      F.1 General
                      F.2 Accuracy tests under reference conditions
                      F.3 Ambient temperature
                      F.4 Effect of damp heat, steady state test
                      F.5 Effect of damp heat, cyclic test
                      F.6 Electrical power variation
                      F.7 Short time power reductions
                      F.8 Electrical bursts
                      F.9 Electromagnetic immunity
                      F.10 Electrostatic discharges
                      F.11 Effect of an overload of static pressure
                      F.12 Effect of vibrations
                      F.13 Effect of shocks
                      F.14 Mechanical resistance to overload of
                           static pressure
                      F.15 Durability
Bibliography

Defines the requirements and tests for the construction, performance, safety and conformity of gas-volume electronic conversion devices associated to gas meters, used to measure volumes of fuel gases of the 1st and 2nd families according to EN 437.

DevelopmentNote
Supersedes NEN EN 12405. (07/2005) 2005 Edition Re-Issued in November 2010 & incorporates AMD 2 2010. (11/2010) Draft issued in December 2017. (12/2017)
DocumentType
Standard
PublisherName
Netherlands Standards
Status
Withdrawn
SupersededBy

View more information
Sorry this product is not available in your region.

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.