BS 4161-5:1990
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Gas meters Specification for diaphragm meters for working pressures up to 7 bar
Hardcopy , PDF
15-06-1999
English
31-10-1990
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Foreword
Committees responsible
Specification
Section one. General
1. Scope
2. Definitions
3. Meter designation and rating
Section two. General requirements
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
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 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. Meter designations and ratings
2. Internal leakage test rates
3. Total mean pressure loss and mechanical pressure loss
4. Strength of connections
Figures
1. Diagrammatic illustration of meter showing
connections and index with tabulated connection and
case dimensions
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. Paint scratch test apparatus
9. Scheme of requirements and associated tests for
corrosion resistance of materials other than
austenitic stainless steel
10. Torsion apparatus
11. Porosity test rig
12. Diagram of a typical test gas mixer apparatus
13. Impact test apparatus
14. Typical hemispherically-tipped strikers used in
impact test
15. Valve grid (diagrammatic only)
16. Diagrammatic layout of shock test apparatus
17. Bubble leak indicator
18. External leakage test apparatus
19. Schematic diagram of typical fire resistance test
apparatus
20 Inclined pressure gauge: 7.5 mbar range
Covers construction, performance and marking of positive displacement meters for use with 1st and 2nd family gases. Also includes certain requirements for fire resistance.
| Committee |
GSE/25
|
| DevelopmentNote |
BS DRAFT 95/704356 DC REFERS TO AMD
|
| DocumentType |
Standard
|
| Pages |
48
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| BS 6400-3:2007 | Specification for installation, exchange, relocation and removal of gas meters with a maximum capacity not exceeding 6 m<sup>3</sup>/h Low and medium pressure (3rd family gases) |
| BS 6400-2:2006 | Specification for installation, exchange, relocation and removal of gas meters with a maximum capacity not exceeding 6 m<sup>3</sup>/h Medium pressure (2nd family gases) |
| BS 6400:1997 | Specification for installation of domestic sized gas meters (2nd and 3rd family gases) |
| BS 6400-1:2016 | Specification for installation, exchange, relocation, maintenance and removal of gas meters with a maximum capacity not exceeding 6 m<sup>3</sup>/h Low pressure (2nd family gases) |
| BS 6400-1:2006 | Specification for installation, exchange, relocation and removal of gas meters with a maximum capacity not exceeding 6 m<sup>3</sup>/h Low pressure (2nd family gases) |
| BS 2782-1:Method 140E:1982 | Methods of testing plastics. Thermal properties Flammability of a small, inclined test piece exposed to an alcohol flame (laboratory method) |
| BS 4161-2:1967 | Gas meters Meters of plate construction above 1000 cubic feet (28 cubic metres) per hour rating |
| BS 4161-7:1973 | Gas meters Mechanical volume correctors |
| BS 4161-8:1987 | Gas meters Specification for electronic volume correctors |
| BS 4161-4:1970 | Gas meters Plate constructed positive displacement diaphragm meters for a pressure of 350 mbar (5 lbf/in<sup>2</sup>) and up to 170 cubic meters (6000 cubic feet) per hour rating |
| BS 3900-F2:1973 | Methods of test for paint. Durability tests on paint films Determination of resistance to humidity (cyclic condensation) |
| BS 3900-A1:1970 | Methods of test for paints. Tests on liquid paints (excluding chemical tests) Sampling |
| BS 3900-F4:1968 | Methods of test for paints Resistance to continuous salt spray |
| BS 3900-E6:1974 | Methods of test for paints Cross-cut test |
| BS 4161-1:1967 | Gas meters Meters of plate construction up to 1000 cubic feet per hour rating |
| BS 5345-1:1989 | Code of practice for selection, installation and maintenance of electrical apparatus for use in potentially explosive atmospheres (other than mining applications or explosive processing and manufacture) General recommendations |
| BS 4504-1:1969 | Circular flanges for pipes, valves and fittings (PN designated) Ferrous |
| BS 476-8:1972 | Fire tests on building materials and structures Test methods and criteria for the fire resistance of elements of building construction |
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