5.—(1) From 1st January 1999 the employer of a person who is to fill with a gas a transportable pressure receptacle at work, shall ensure that before it is filled that person—
(a)checks from the marks on the receptacle—
(i)that the receptacle appears to have been examined and tested by an approved person in accordance with the appropriate examination and testing requirements of the Approved Requirements; and
(ii)it is suitable for containing that gas; and
(b)makes all other appropriate safety checks.
(2) Until 1st January 1999, the employer of a person who is to fill with a gas a transportable pressure receptacle at work, shall ensure that before the receptacle is filled that person—
(a)checks from the marks on the receptacle—
(i)that it appears to have been examined at appropriate intervals by a competent person;
(ii)that it is suitable for containing that gas; and
(b)makes all other appropriate safety checks.
(3) The employer of a person who fills a transportable pressure receptacle at work shall ensure that that person—
(a)checks that, after filling, it is within its safe operating limits;
(b)checks that it is not overfilled; and
(c)in the event of overfilling, removes any excess gas in a safe manner.
(4) Every employer shall ensure that any person employed by him does not refill at work a non-refillable receptacle with a gas.