Document ID: chunk:federal_register_of_legislation:F2016L00417:body:0:p23
Version: federal_register_of_legislation:F2016L00417
Segment Type: other
Provision Reference: 
Character Range: 58335–61133

cylinder walls.
You should never modify, remove or substitute parts and never tape down or prevent free movement of the control handle. This defeats the safety purpose of the remote control system
and may cause serious injury if an uncontrolled nozzle is dropped.

Blast hoses, hose whips and couplings
Hoses should be constructed with anti-static rubber linings or fitted with an earth wire or similar mechanism to prevent electric shock. Static electricity may build up in dry blasting operations, from abrasive blasting equipment and/or from the surfaces being blasted. Static electricity can shock workers and create an ignition source, with the potential for explosion if there is a combustible atmosphere (for example, an atmosphere containing metal dust, organic abrasive or fine paint particles). You should ensure that:
    * hoses or couplings are purpose designed
    * the rated working pressure of a blast hose is not exceeded
    * the hose from the pot to the blast nozzle is kept as straight as possible.
      In situations where a hose needs to be curved around an object, a long radius curve
      should be used. The use of sharp curves may create rapid wear on the hose, leading
      to the possibility of the hose malfunctioning
    * blasting does not take place  with a coiled hose
    * hose whip checks or hose coupling safety locks or both are fitted to hoses
    * safety cables are used to support the weight of elevated hoses
    * pin holes are not taped in the blast hose. The hole will enlarge quickly and will cause a  blow-out
    * blast hoses are  coiled and stored away from water, oil and chemicals to prevent rotting
    * coupling fit is checked
    * screws provided by the coupling manufacturer are used
    * the hose end fits uniformly flush with the coupling shoulder
    * nozzle holders and couplings fit snugly on the blast hose. Reject those that
      are loose
    * hoses that have a damaged outer cover are replaced
    * all hoses or lines are positioned in locations where they are not subject to damage, fouling or restrictions
    * hoses, hose whips and couplings are inspected, tested and maintained in accordance with the manufacturer's instructions.

Blasting cabinets
Blasting cabinets should be used for blasting small objects. The cabinets should be constructed from an abrasive resistant, non-combustible material and should also:
    * have a sealed window so that the operator can view the object being cleaned
    * be fitted with a dust extraction/collection system which has a sufficient air change rate
      to increase visibility and keep dust exposures less than the relevant exposure standards when the cabinet is opened
    * have a dust tight light fixture, and
    * have interlocked doors to eliminate the possibility