BS 4161-3:1989

Superseded

View Superseded by

Gas meters Specification for diaphragm meters of 6 cubic metres (or 212 cubic feet) per hour rating for working pressures up to 50 mbar

Available format(s)

Hardcopy , PDF

Superseded date

15-06-1999

Language(s)

English

Published date

30-11-1989

Publisher

British Standards Institution

Foreword
Committees responsible
Section one. General
1. Scope
2. Definitions
3. Meter designation and rating
Section two. General requirements for credit and
prepayment diaphragm meters
4. Materials and finish
5. Design and dimensions
6. Assembly and workmanship
7. Connections
8. Soundness
9. Performance
10. Type tests
11. Transit and storage protection
12. Marking
Section three. Additional requirements for prepayment
meters
13. Visibility
14. Design and dimensions
15. Performance
16. Marking
Appendices
A. Information to be supplied by the purchaser
B. Coated surfaces: test of scratch resistance
C. Decorative finish: test for resistance to humidity
D. Scheme of requirements and associated tests for
    corrosion resistance of materials other than
    austenitic stainless steel
E. Corrosion resistant surfaces: tests
F. Synthetic diaphragm: Williamson torsion test of
    stiffness
G. Synthetic diaphragm porosity test
H. Synthetic diaphragm: preparation and use of treated
    gas for the vapour phase test
J. Tests on seals and sealing glands
K. Impact test on assembled meter
L. Method of calculating the resistance power factor
M. Shock test
N. Test for external soundness
P. Test for accuracy of registration
Q. Tests for total mean pressure loss and mechanical
    pressure loss
R. Endurance test
S. Ambient temperature tests
T. Test of fire resistance
U. Inclined pressure gauge
Tables
1. Coin dimensions
2. Coinplate setting increments and ranges
Figures
1. Credit and prepayment meters
2. Pressure test nipple
3. Pressure test point positions
4. Meter index (cubic metres)
5. Meter index (cubic feet)
6. Method of testing connections
7. Non-fire-resistant meter badge
8. Hasp for external padlock
9. Internal lock for prepayment meter
10. Paint scratch test apparatus
11. Scheme of requirements and associated tests for
    corrosion resistance of materials other than
    austenitic stainless steel
12. Torsion apparatus
13. Porosity test rig
14. Diagram of a typical test gas mixer apparatus
15. Impact test apparatus
16. Typical hemispherically-tipped strikers used in
    impact test
17. Valve grid
18. Diagrammatic layout of shock test apparatus
19. Bubble leak indicator
20. External soundness test apparatus
21. Schematic diagram of typical fire resistance test
    apparatus
22. Inclined pressure gauge: 7.5 mbar range

Construction, performance and marking of credit and prepayment meters.

Committee	GSE/25
DevelopmentNote	BS DRAFT 95/704357 DC REFERS TO AMD
DocumentType	Standard
Pages	44
PublisherName	British Standards Institution
Status	Superseded
SupersededBy	BS EN 1359:2017 BS EN 1359:1999
Supersedes	BS 4161-3:1977

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