S.L. 646.15 Art. 7Measurement and sampling.

(1) Depending on the results of the initial risk assessment, and in order to ensure compliance with the relevant limit value established in regulation 8, measurement of asbestos fibres in the air at the work place shall be carried out at regular intervals during specific operational phases.

(2) Sampling shall reflect the personal exposure of the worker to dust arising from asbestos or materials containing asbestos.

(3) Sampling shall be carried out after consultation of the workers and, or their representatives in undertakings.

(4) Sampling shall be carried out by suitably qualified personnel. The samples taken shall be subsequently analysed, in accordance with subregulation (6), in laboratories equipped for fibre counting.

(5) The duration of sampling shall be such that representative exposure may be established for an eight (8) hour reference period, one shift, by means of measurements or time-weighted calculations.

(6) Fibre counting shall be carried out wherever possible by electronic microscopy or by any alternative method that provides equivalent or more accurate results.

(7) (a) For the purpose of measuring asbestos in the air as referred to in sub-regulation (1), only fibres with a length of more than five (5) micrometres, a breadth of less than three (3) micrometres and a length to breadth ratio greater than 3:1 shall be taken into consideration;

(b) From 21 December 2029, fibres with a breadth of less than zero point two (0.2) micrometres shall also be taken into consideration for the purposes of regulation 8(2).