Peltier effect  Go To Index pH-value (hydrogen ion exponen ...  

    Permissible exposure limit

    Abbreviation: PEL.

    PEL values for soldering
    Metal vapor (as oxide) PEL (mg/m3)
    Cd 0,100
    Be 0,002
    Zn 5,000
    Sb 0,500
    As 0,010
    Pb 0,050
    In 0,100
    Ag 0,010
    PEL values for soldering

    This values are valid for the USA.

    Such limits exist, for example, for the concentration of metal vapor or metal dust in the workplace air. The mass of the metal vapor is measured in mg per cubic meter of air. For soldering, OSHA specifies the limits specified above. The amount of metal in the air is referred to as airborne metal concentration.