(1) Subject to sub-articles (2) and (3) disablement benefit shall not be payable in respect of occupational asthma where the claim is made later than 10 years after the date on which the insured person, in respect of whom the claim was made ceased to be employed in any occupation -

(a) prescribed in relation to occupational asthma, or

(b) established under article 22, the nature of which has resulted in the development of occupational asthma.

(2) Sub-article (1) shall not apply to any claim made by or in respect of an insured person who has at any time been found to be suffering from asthma as a result of an occupational accident and who by virtue of that finding has been awarded disablement benefit either for life or for a period which includes the date from which the claim for disablement pension was made.

(3) Subject to sub-article (4), occupational injuries death benefit shall not be paid in respect of occupational asthma where the insured person, in respect of whose death the benefit has been claimed, died more than 10 years after the date on which he or she ceased to be employed in any occupation prescribed in relation to occupational asthma.