Cette traduction est en cours de préparation. En attendant, nous affichons temporairement la version originale en anglais.
Marché du travail · 22/04/19981 min de lecture
Safety Standards for Roof Bolts in Metal and Nonmetal Mines and Underground Coal Mines
Traduction automatique locale · Langue originale de la source
Résumé
MSHA is revising its safety standards for roof and rock bolts at metal and nonmetal mines and underground coal mines by updating the reference to the American Society for Testing and Materials (ASTM) standard for roof and rock bolts and accessories. The new reference reflects technological advances in the design of roof and rock bolts and support materials. It will improve the level of protection provided by the standards currently in use.
Langue originale de la source: Federal Register — Department of LaborOuvrir le communiqué original →