Examination
34
67. (1) No person shall use any cylinder, or cause or permit any of cylinders cylinder to be used, to contain any dissolved gas unless such cylinder has been subjected to internal and external examination within the preceding twelve months by a person approved by the Authority for that purpose.
containing dissolved INSCR
Destruction at defective cylindera.
Filling of cylinders
pataining permanent
pasca.
(2) The owner of any cylinder used to contain dissolved gas shall keep a record of each examination to which in accordance with para- graph (1) such cylinder is subjected together with the name and address of the person by whom each such examination was conducted.
(3) Upon transfer of ownership of any cylinder to which this regulation applies, the record of examinations, or a copy thereof, to which such cylinder has been subjected shall be transferred together with the cylinder.
68. (1) If any cylinder-
(4) upon being subjected to
() hydraulic stretch testing, or
(ii) hydraulic pressure testing,
pursuant to the provisions of regulation 66, is found to have suffered more than ten per cent permanent stretch or to leak; or (b) upon being examined pursuant to the provisions of regulation 67, is found to have suffered internal or external damage or deterioration which, in the opinion of the person who carried out the examination, renders it unsafe,
the person who carried out the test or the examination shall-
(i) retain the cylinder in his possession, and
(i) forthwith notify in writing the owner of the cylinder and the
Authority of the result of the test or examination.
(2) Upon receipt of any notice pursuant to the provisions of paragraph (1), the Authority shall cause the cylinder in question to be destroyed in such manner as he may consider appropriate and may in his discretion recover the whole or any part of any expense incurred thereby from the owner of the cylinder as a civil debt due to the Crown.
69. Except with the permission in writing of the Authority, given either generally or in any particular case, no person shall fill any cylinder, or cause or permit any cylinder to be filled, with any permanent gas to such an extent that the internal pressure on the cylinder at 60" Fahrenheit (15.5o Centigrade) exceeds-
(c) in the case of boron trifluoride, one thousand five hundred
pounds per square inch;
(b) in the case of krypton, one thousand eight hundred pounds
per square inch;
35
(c) in the case of fluorine, such pressure as the Authority may
permit:
(d) in the case of any other permanent gas, one thousand nine
trundred and eighty pounds per square inch; and
(e) in the case of any gas contained in a special light metal cylinder, not exceeding a capacity of twenty cubic feet of free gas, such pressure as the Authority may prescribe as a con- dition of the licence required for the filling thereof.
70. (1) No person shall fill any cylinder, or cause or permit any Filling of cylinder to be filled, with liquefied gas unless the sylinder has been cylinders
containing rendered free from moisture.
liquefied
(2) No person shall fill any cylinder, or cause or permit any cylinder to be filled, with any liquefied gas specified in the first column of the table to this paragraph in excess of a quantity equivaleat in weight to the number of pounds of water which the cylinder is capable of containing multiplied by the filling ratio specified in the second columa of the table for that gas.
Carbon Dioxide (except as specified above) Chlorino
TABLE.
Gas
Filling radio
Working pressure in Ib. per
59. inch
Ammonia, Anhydrous Butadiene
O.SE
412
0.50
104
Carbon Dioxids (if the cylinder is firted with a bursting disc which will discharge the contents before a pressure of 2,850 pounds per aquare inch is allained)
0,667
0.60
1.19
283
Chloroifluoromethane (Arcton 13. Freon 133 Cyclopropane
0.90
0.48
272
DichlorodiBuoromethane (Arcton 12, Freon 12)
1.08
230
Dichlorofluoromethane (Arcton 21, Freon 21) Dichlorotetrafluoroethane (Arcton 114, Freon 114) Dimethylamine
1.20
71.6
1.26
80.6
0.44
胭
0.79
0.270
Ethylene Oxide
0.75
TT
Hydrocyanic Acid Gas (Stabilized)
0.57
40
Merbyl Bromide
1.39
101
Methyl Chloride
0.78
207
Monochlorodifluoromethane (Arcton 22, Freon 27)
0.90
380
Monomethylamino
0.54
156
Ethyl Chloride
Etbylene
60
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