Article R4412-128 of the French Labour Code
In order to ensure that asbestos fibres are not dispersed into the environment around the work site and adjacent premises, the employer shall check compliance with the value set in Article R. 1334-29-3 of the Public Health Code by measuring dust levels: 1° In the area approaching the work area ; 2° In the recovery area 3° At points in the building in which the work is being carried out;…