BS 3636:1963
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Hardcopy , PDF
15-05-2001
English
12-08-1963
Co-operating organizations
Foreword
Introduction
Gas tightness
Units
Symbols
Definitions
Designation of proving methods
Review of proving methods
Gas tightness of test apparatus
Leak location
Comparison of proving methods
Vacuum methods
V.1 Pumping
V.2 Pressure rise
VS.1 Infra-red absorption (plant evacuated)
VS.2 Halide diode
VS.3 Mass spectrometer
VS.4 Thermal conductivity vacuum gauge
A. Fitted to plant
B. Specially adapted for leakage probing
VS.5 Ionization vacuum gauge
VS.6 Ionization vacuum gauge with palladium barrier
VS.7 Thermionic cathode diode vacuum gauge
Pressure methods
Precautions against rupture of pressurized plant
P.1 Flow rate
P.2 Pressure drop
A. With constant temperature
B. With varying temperature
PS.1 Infra-red absorption, flow measurement
A. Plant pressurized
B. Hood pressurized
PS.2 Infra-red absorption, accumulation
A. Plant pressurized
B. Hood presurized
Appendices
A Design of plant bearing in mind the need for
proving
B Recommendations relating to contracts
C Blockage of capillary leaks
D Comparison of leak rates of different fluids
E Method V.2 pressure rise: time saving techniques
in the presence of outgassing
F Method V.2 pressure rise: check for leakage across
the isolating valve
G Search gas methods: pumping systems
H Search gas methods: best pumping speed
J Reference leaks
K The refrigerated trap
L The chemical trap
M The charcoal trap
N Worked examples
O Leak location
P Safety precautions
Q Bibliography
R Conversion factors
Index
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