Factories. (Ch. 30. No. 2. (6) Every steam boiler and all its fittings and attachments shall be properly maintained. (7) Every steam boiler and all its fittings and attachments shall be thoroughly examined by a competent person at least once in every period of twelve months, and also after any extensive repairs. (8) A report of the result of every such examination in the prescribed form and containing the prescribed particulars (including the maximum permissible working pressure) shall, as soon as practicable and in any case within twenty-one days of the completion of the examina- tion, be entered in or attached to the general register, and the report shall be signed by the person making the ‘xamination, (9) No steam boiler which has previously been used shall be taken into use again until it has been examined and reported on in accordance with the last two foregoing subsections; and no new steam boiler shall be taken into use unless there has been obtained from the manufacturer of the boiler, or from a person competent to examine boilers, a certificate specifying the maximum permissible working pressure thereof, and stating the nature of the tests to which the boiler and fittings have been submitted, and the certificate is kept available for inspection, and the boiler is so marked as to enable it to be identified as the boiler to which the certificate relates; and no new steam boiler shall be put into use until it has also been hydraulically tested on the site by a competent person as aforesaid to at least one and a half times the maximum permissible working pressure, and the date of the test and the pressure applied shall be entered in the certificate which shall be signed by the person making the test: Provided that the provisions of this subsection relating to steam boilers which have previously been used shall not apply to any such boiler used intermittently by the same owner or hirer except on the first occasion when the said owner or hirer takes the boiler into use. (10) Where the report of any examination under this section specifies conditions for securing the safe working of a steam boiler, the boiler shall not be used except in accordance with those conditions. 9 (2) 131