(1) A person who designs, manufactures, imports or supplies any article for use at work shall -

(a) ensure, so far as is reasonably practicable, that the article is designed and constructed so as -

(i) to be safe and without risk to health when properly used by a person at a place of work, and

(ii) to comply with the relevant statutory provisions and with the provisions of any relevant enactment implementing any relevant directive of the European Communities,

(b) ensure that the article undergoes appropriate levels of testing and examination to ensure compliance with paragraph (a),

(c) provide or arrange for the provision of adequate information about the article to the persons to whom it is supplied to ensure its safe use,

(d) ensure that persons to whom the article is supplied are provided with any revisions of the information provided under paragraph (c) as are necessary by reason of it becoming known that anything relating to the article gives rise to a serious risk to safety or health,