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JICOSH Home > Laws > Ordinance on Safety of Boilers and Pressure Vessels

Ordinance on Safety of Boilers and Pressure Vessels

Ministry of Labour Ordinance No.33 of September 30, 1972
Latest Amendments:
Ministry of Health, Labour and Welfare Ordinance No. 171 of July 16, 2001

In Japanese
Chapter IV. Second Class Pressure Vessels

(Examination)

Article 84. A person who has manufactured or imported a second class pressure vessel shall undergo an examination under the provision of paragraph 1 of Article 44 of the Law, in respect of the said second class pressure vessel.

2. A person who has manufactured a second class pressure vessel in a foreign country may have the examination prescribed in paragraph 2 of Article 44 of the Law conducted on the said second class pressure vessel. Where said examination has been conducted, the provisions of the preceding paragraph shall not apply to the person importing said second class pressure vessel.

3. The examination as provided for by the preceding two paragraphs shall be conducted in accordance with the Ordinance on Examination of Machines and Other Equipment (Ministry of Labour Ordinance No.45 of 1972).


Article 85. Deleted.

(Adjustment of Safety Valve)


Article 86. The employer shall adjust the safety valve of a second class pressure vessel to let it operate at the maximum allowable working pressure or lower. However, when two or more safety valves are provided, and one of them is adjusted in order to operate at the maximum allowable working pressure or lower, the employer may adjust other safety valves to let them operate at the pressure three percent over the maximum allowable working pressure or lower.


(Protection of Pressure Gauge)

Article 87. With regard to a pressure gauge, the employer shall take necessary measures to prevent its insides from freezing and also to maintain the temperature less than 80 degrees.

2. With regard to a dial of pressure gauge, the employer shall put up easily visible indication at the position showing the maximum allowable working pressure of the second class pressure vessel concerned.


(Periodical Voluntary Inspection)

Article 88. With regard to a second class pressure vessel, the employer shall implement voluntary inspection, periodically, and at least once for every period not exceeding one year after the commencement of operation, on the following matters, provided that this provision shall not apply to a non-use period of second class pressure vessels, which are not used for a period exceeding one year:

(1) Existence of damage in the vessel itself.

(2) Existence of wear in the locking bolts of the cover plate.

(3) Existence of damage in the tubes or valves.

2. With regard to the second class pressure vessels as described in the provision of the preceding paragraph, the employer shall, before the resumption of use, implement voluntary inspection on the matters as described in each item of the same paragraph.

3. When having implemented the voluntary inspections as set forth by the preceding two paragraphs, the employer shall record their results and preserve such records for three years.


(Repairs, etc.)

Article 89. In the event that any abnormality has been found as the result of the voluntary inspection as set forth by paragraph 1 or 2 of the preceding Article, the employer shall take such necessary measures as repairs, etc.

Article 90. Deleted.
INDEX
I / II / III / IV
V / VI / VII / VIII


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