RR496 - Isocyanate exposure, emission and control in small motor vehicle repair premises using spray rooms: Phase 1

A mock up spray room was constructed within the HSL spray booth with dimensions, ventilation conditions, extraction rates etc set to represent typical MVR spray room conditions. A robotic sprayer was used to simulate paint spraying of car parts under a range of conditions; including spray orientation relative to the extraction duct, spray gun type, ventilation (air in) set up and extraction rates. Real and near time monitors were used in conjunction with the HSL standard method for airborne isocyanate monitoring (MDHS 25/3).

The main findings were:

This report and the work it describes were funded by the Health and Safety Executive (HSE). Its contents, including any opinions and/or conclusions expressed, are those of the author alone and do not necessarily reflect HSE policy.

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Updated 2021-04-20