The "maximum workplace concentration" is the maximum permissible concentration of a substance (gas, steam, suspended matter) at which no health damage is to be expected, even if the concentration is usually 8 hours a day or a maximum of 40 hours a week is exposed. Since 2005 there has been a new limit value concept called AGW (workplace limit value) and BGW (biological limit value). Even with the winemaking
such limit values apply, e.g. Sterilization with ozone
, See also for substance limits below ADI
(acceptable daily intake).