S.L. 549.18 Art. 4Limit values.

(1) Without prejudice to regulation 3, the competent authority shall take the necessary measures to ensure that the concentration of asbestos emitted through the discharge ducts into the air during use of asbestos does not exceed a limit value of 0,1 3 3 mg/m (milligrams of asbestos per m of air discharged).

(2) The competent authority may exempt from the obligation referred to in subregulation (1) the plants emitting less than 5,000 3 m /hour total gaseous discharges, where the discharge of asbestos into the air is not more than 0,5 grams per hour at any time under normal operating conditions. When this exemption applies, the competent authority shall take appropriate measures in order to ensure that the thresholds referred to in subregulation (1) are not exceeded.