Scaled Management Systems

Plasma cutting

Water table for plasma arc metal cutting processes reduces employee exposure to welding fume Problem There are often airborne contaminants when cutting metal plate with plasma cutting machines. At a mine the fume being generated sometimes reached levels requiring nearby employees to stop work and vacate the workshop. The first proposed solution to install a

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Vinyl glue fumes

Workers in an upholstery shop used solvent-based adhesives in the manufacture and repair of vinyl covered seats. Fumes were identified as being generated firstly form the adhesive, and secondly from the reaction of the adhesive with the vinyl. The fumes gave headaches to the upholstery workers and caused an unpleasant smell for all other workers in the workshop. There was also a potential fire hazard.

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Paper Dust

Tissue paper arrives at the factory in bulk to be processed and packaged into boxed or rolled tissue paper for consumers. In the conversion of bulk tissue paper from jumbo rolls to retail packs the paper is rewound or folded, then perforated and cut before being packaged.

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Dust hazards

For analyses mineral ore samples must be crushed and then milled until 95% are less than 212 µ. (Less than one quarter of a millimetre). The milling task is performed using ‘Raymond’ hammer mills. To avoid contamination this mill must be cleaned with compressed air between samples.

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Welding fumes

In a shipyard workshop, the arc welding of steel was producing airborne contaminants as fumes and gasses. The reliance on natural dilution ventilation was considered inadequate for minimising the excessive amounts of fumes and gasses to which the welder was expose.

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Dust Extraction

During the manufacture of tea bags, dust was generated. This dust and the machine noise caused considerable discomfort to workers. The automatic packaging machinery also had many unguarded nip points on moving parts which had the potential to inflict serious hand injury.

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