Mining Special Application
In the mining environment, Respiratory Protective Devices (RPD) are used for different purposes and may be exposed to rough usage, vibration, quick climatic and pressure changes, corrosive substances, extremes of humidity, water splash, explosive atmospheres and extremely high dust concentrations. RPD used in mine rescue or firefighting need long durations and must support a high work rate.
RPD for Mining are designated by MN followed by the numeric designation for specific Mining application. These specific applications are: Underground non-explosive atmosphere, Underground explosive atmosphere, Firefighting and Rescue, where two levels of environmental conditions are covered (MN4 to be selected when high thermal exposure is involved).
Potentially Explosive Environments – Where RPDs are used in potentially explosive atmospheres, selection will need to include assessment of the RPD itself as a possible ignition source. In order to be used in potentially explosive atmospheres the RPD must be intrinsically safe such IECEx, SIMTARS, ATEX or other applicable program. Advice from the RPD manufacturer/supplier should be sought on the suitability of the RPD for the environment.
For products meeting AS/NZS 1716, refer to the manufacturer to confirm that the selected product/s as suitable for the intended Mining tasks and/or environments.
Reference/s for further information and detail:
- SA/SNZ TS ISO 16975.1:2023 – Selection, use and maintenance – Section 7.3.3.12.5
- SA/SNZ TS ISO 16973:2023 – Classification – Section 11.5 and Annex C
- AS/NZS ISO 17420.7:2022 – Special application marine, mining, welding and abrasive blasting
