HAVING REGARD to Article 5(b) of the Convention on the Organisation for Economic Co-operation and Development of 14th December 1960;

CONSIDERING that the differences between national technical regulations applicable to certain types of electrical equipment used in the oil industry are liable to hamper trade expansion;

CONSIDERING that the International Electrotechnical Commission has done or begun work on the harmonization of these national regulations;

I.            ASKS the Governments of those Member countries whose industrial circles participate in the International Electrotechnical Commission to draw the attention of these industrial circles to the importance of accomplishing the work undertaken by the Commission in the fields enumerated in paragraph 1 of the attached Annex.

II.           RECOMMENDS the Governments of Member countries to adapt their national technical regulations as far as possible to the international standards drawn up or to be drawn up by the International Electrotechnical Commission in the fields enumerated in paragraph 2 of the attached Annex.


1.            Fields covered by the work of the International Electrotechnical Commission.

         method of testing for the determination of flash-point

         dust-proof enclosures

         the labelling of electrical equipment for explosive gas atmospheres

         the revision of part 1 of publication no. 79 « Flame-proof casings »

         method of protection by sand filling

         construction and testing of electrical equipment for use in explosive gas atmospheres increased safety

         specifications for electrical equipment immersed in oil

         unification of intrinsically safe methods and apparatus

2.            Fields in which international standards have been laid down by the International Electrotechnical Commission.

Publication 79:

Part 1 — «Flame-proof enclosures»

Part 2 «Pressurized casings»

Part 3 «Testing of intrinsically safe apparatus»

In adopting this Recommendation, the Council:

1.            NOTED the Reports by the Trade Committee and the Special Committee for Machinery of 27th October 1965 on the Harmonisation of National Technical Regulations Applicable to Oil Distribution and Storage Equipment [Doc. No. C(65)110];

2.            INSTRUCTED the special Committee for Machinery to follow up the implementation of this Recommendation and to report on the subject in due course;

3.            NOTED that Canada abstained from this Recommendation.