Article 14
(34) Subject to the provisions of Article 16, where a person submits a claim to receive an old age pension by virtue of insurance under the legislation of both Contracting Parties, his claim shall be determined in accordance with the provisions of the succeeding paragraphs of this Article.
(35) The social insurance authority of each Party shall determine, in accordance with the legislation of that Party, whether the person satisfies the conditions for receiving an old age pension under that legislation, and for this purpose shall take account, subject to the provisions of Article 25 of the present Convention, of all the insurance periods, contribution periods and equivalent periods completed by him under the legislation of the two Parties as if they had been completed under its own national legislation.
(36) Where the right to receive a pension is established in accordance with the provisions of paragraph (2) of this Article, the social insurance authority of each Party shall calculate—
(a)the pension which would have been due to the person under its own national legislation if all the insurance periods, contribution periods and equivalent periods completed by him under the legislation of both Parties, calculated in accordance with the provisions of Article 25, had been completed under its own national legislation, and
(b)that part of such pension which bears the same relation to the whole as the total of all the contribution periods completed by the person under its own national legislation bears to the total of all the contribution periods completed by him under the legislation of both Parties.