580810-1940-Dangeroas-Goods-Regulations-1940 — Page 41

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THE HONG KONG GOVERNMENT GAZETTE, MARCH 1, 1940.

(3) Every such cap or cover shall be provided with a vent of such size as will prevent the accumulation of gas pressure inside such cap or cover.

(4) The valve of every such cylinder shall be provided with left handed outlet screw threads for the pipe or other connexion.

(5) This regulation shall not apply to small cylinders packed in cases which adequately protect the valves of such evlinders.

69. No oil or similar lubricant shall be used on any valve or other fitting of any cylinder.

70. (1) Every cylinder shall be submitted to an hydraulic test at intervals not exceeding two years.

(2) Every cylinder shall be thoroughly cleaned and examined externally, and, so far as practicable, internally, before it is submitted to any such test.

(3) If any rust or foreign matter is found inside any cylinder as a result of any such examination, the cylinder shall. before being submitted to any such test, be heated to a temperature not exceeding 572° Fahrenheit, and then again cleaned and examined.

(4) Upon the completion of any such test, and before being filled, every cylinder shall be thoroughly dried inter- nally, and shall be stamped with marks and figures indicating by whom and on what date the test was conducted.

71. The name of the gas contained in the cylinder, and the name and address of the person or firm by whom the cylinder was filled shall be legibly shown--

(a) upon every cylinder containing any gas,

(b) in red upon every case containing one or more cylin- ders and not coloured red all over, and

(c) in any suitable colour upon every case containing one or more cylinders and coloured red all over.

Special Regulations.

CLASS 2.

72. Every cylinder shall be made of seamless steel and shall be maintained in good condition.

73. The valve of every cylinder shall be securely closed to prevent leakage.

74. Every cylinder shall be completely emptied and thoroughly dried before being filled.

75. Every precaution shall be taken to ensure that the gas used for filling any cylinder is freed from moisture.

76(1) Every cylinder shall be so designed as to protect the valve from damage, or shall be provided with a strong metal cap or cover enclosing the valve and securely attached to the cylinder.