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Guideline

CONSTRUCTION CODE FOR PRESSURE VESSELS

Notification No.196 of the Ministry of Health, Labour and Welfare
April 30, 2003

In Japanese


Part 1. Construction Code for First Class Pressure Vessels

Chapter 5. Miscellaneous Provisions

Article 70. Exceptions
Among First Class pressure vessels which do not meet the requirements in Chapters 1 through 4 herein, the following First Class pressure vessels shall be regarded to meet such requirements when they are recognized by the Director-General of the Prefectural Labour Bureau to have the safety equal or superior to that of those pressure vessels which meet such requirements, judging from the material, construction, workmanship and other features of such pressure vessel:
(a) pressure vessels which are specially designed;
(b) pressure vessels which are manufactured in accordance with international standards etc.

Article 71. Determination of Maximum Allowable Working Pressure
1. The marking of the maximum allowable working pressure for a double-shell First Class pressure vessel shall state such pressure for each of its parts which are subject to exposure to different levels of pressure, while for any other type of First Class pressure vessel, the maximum pressure for the vessel as a whole shall be stated.
2. Any person who inspects a First Class pressure vessel under the Ordinance on Safety of Boilers and Pressure Vessels (Ordinance No. 33 of the Ministry of Labour, 1972) may determine the maximum allowable working pressure for such vessel by taking into consideration the degree of any fabricating defect, material corrosion, etc. found with such vessel during the inspection.

INDEX
1-1 / 1-2 / 1-3 / 1-4 / 1-5 / 2
Supplementary Provisions


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