#Child hot iron danger manual

When the asthmatic effects are fully developed they are permanent and irreversible. Rosin-based solder flux fume is now regarded as one of the most significant causes of occupational asthma in Britain. People maintaining and cleaning soldering plant, equipment and control systems may also be at risk. Intermittent soldering work may lead to high, short-term exposures, particularly if carried out in an enclosed space or at an awkward angle. On automated lines, the flux may be sprayed as a liquid or foam before wave soldering.Ī large number of people, including telecommunications engineers, ventilation and heating specialists, plumbers and those in technical research and further education do some soldering. Liquid fluxes may be applied from a bottle or by dipping into small jars or pots. In other cases, the flux may be within a solder paste applied by syringe, or by stencil and screen printing. For solder wire, commonly used in hand soldering, the flux is often contained in a central core and is released on heating. Rosin-based fluxes may be integral with the solder or applied separately, as in liquid fluxes.

#Child hot iron danger manual

Without effective control, solder fume rises vertically and, for manual operations, is likely to enter the breathing zone of the solderer. Serious health problems may arise from inhalation of fume from rosin (sometimes called 'colophony') or its derivatives contained in solder fluxes. Industry respiratory health links: Alpha A-ZĮlectronics (Soldering) Where are the hazards?.