Biological workplace tolerance value

The biological workplace tolerance value (BAT or BAPT value, risk of confusion with the biological work material tolerance value; BAST value) was a limit value of the German Hazardous Substances Ordinance (GefStoffV) until its new version came into force on January 1, 2005. It was defined as the concentration of a substance or its transformation product in the body or the resulting deviation of a biological indicator from its norm, which generally does not affect the health of workers.

With the entry into force of the new Hazardous Substances Ordinance, a new limit value concept has existed in Germany since January 1, 2005. The new GefStoffV replaced the BAT value with the biological limit value (BGW). The old BAT values can and should, however, continue to be used as benchmarks and guidelines until the regulation is fully implemented.

Individual evidence

↑ ^a ^b Limit values Ruhr-Universität Bochum, accessed July 5, 2015
↑ Ordinance on dangerous substances (Hazardous Substances Ordinance) ( BGBl. 1986 I p. 1470 )
↑ Federal Law Gazette I p. 1643 Ordinance on the revision of the Hazardous Substances Ordinance, Federal Law Gazette , 2010, Part I, No. 59

[RUB-1] Limit values Ruhr-Universität Bochum, accessed July 5, 2015

[2] Ordinance on dangerous substances (Hazardous Substances Ordinance) ( BGBl. 1986 I p. 1470 )

[3] Federal Law Gazette I p. 1643 Ordinance on the revision of the Hazardous Substances Ordinance, Federal Law Gazette , 2010, Part I, No. 59