Monitoring exposure at the workplace10
1
In any case in which—
a
it is requisite for ensuring the maintenance of adequate control of the exposure of employees to substances hazardous to health; or
b
it is otherwise requisite for protecting the health of employees,
the employer shall ensure that the exposure of employees to substances hazardous to health is monitored in accordance with a suitable procedure.
2
Where a substance or process is specified in column 1 of Schedule 4, monitoring shall be carried out at the frequency specified in the corresponding entry in column 2 of that Schedule.
3
The employer shall keep a suitable record of any monitoring carried out for the purpose of this regulation and that record or a suitable summary thereof shall be kept available—
a
where the record is representative of the personal exposures of identifiable employees, for at least 30 years;
b
in any other case, for at least 5 years.