Document ID: chunk:federal_register_of_legislation:F2016L00417:body:0:p31
Version: federal_register_of_legislation:F2016L00417
Segment Type: other
Provision Reference: 
Character Range: 79582–83560

a confined space entry permit issued for the work.

Control measures
    * Elimination – assess the need to undertake abrasive blasting
      in a confined space
    * Isolation – the confined space should be isolated to avoid the introduction of harmful substances or activation of moving parts (e.g. isolate the confined space from power sources, lock or tag all moveable components)
    * Engineering – mechanical ventilation systems should be used to remove hazardous contaminants produced by the work being performed in the confined space
    * Administrative – develop and document a method for confined space entry.
Further information on how to work safely in confined spaces can be found in Code of Practice: Confined Spaces.

APPENDIX A – SELECTING AN ABRASIVE BLASTING MEDIUM
Do not use:                                                                                                                     Blast material which may be used:

    * Materials with any radioactive substances  where the level of radiation exceeds                                           The following materials will not usually result in exposures greater than national exposure standards. However, you should check the Safety Data Sheet to ensure the composition of substances does not exceed prohibited levels
      1 becquerels per gram, so far as is reasonably practicable                                                                    * ilmenite
    * Materials containing more than:                                                                                               * aluminium oxide
          + 0.1% antimony                                                                                                           * garnet (low crystalline silica content only)
          + 0.1% arsenic                                                                                                            * other rocks and mineral sands which do not contain significant levels of silica
          + 0.1% beryllium                                                                                                          * metal shot
          + 0.1% cadmium                                                                                                            * steel grit
          + 0.5% chromium (except as specified for wet blasting)                                                                    * crushed glass
          + 0.1% cobalt                                                                                                             * sodium bicarbonate
          + 0.1% lead (or which would expose the operator to levels in excess of those set out in Part 7.2 of the Regulations)      * plastic beads
          + 0.1% nickel                                                                                                             * glass beads
          + 0.1% tin                                                                                                                * some metal slags (check content analysis before purchase)
    * Materials containing more than 1% free silica (crystalline silicon dioxide) including:                                        * dry ice
          + River sand                                                                                                          Note: There are environmental requirements in relation to abrasive blasting mediums. If in doubt, seek advice from your local council.
          + Beach sand or other white sand
          + Dust from quartz rock
          + Diatomaceous earth (pool filter material)
In dry abrasive blasting:

    * Recycled materials which have not been treated to remove respirable dust
    * Recycled materials for which treatment has not removed toxic materials to below the prescribed concentrations
    * Any substance likely to harm the upper respiratory tract
In wet abrasive blasting:

    * any substance that contains chromate, nitrate or nitrite