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1000
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Abstract/Summary
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The German Commission for the Investigation of Health Hazards of Chemical Compounds in the Work Area has re‐evaluated the biological tolerance value at the work place (BAT value) for 2‐butoxyethylacetate (ethylene glycol monobutyl ether acetate), considering butoxyacetic acid in urine to characterize the internal exposure. The previous BAT value for free butoxyacetic acid of 100 mg butoxyacetic acid/l urine*, intended to protect against systemic effects (especially haemolytic effects), is retained. The sampling time is at the end of exposure/shift after several previous shifts. For the total excretion of butoxyacetic acid a further BAT value of 200 mg butoxyacetic acid (after hydrolysis)/l urine* is established. As the effects of the two glycol ethers 2‐butoxyethyl acetate and 2‐butoxyethanol, are largely the same in the human organism, the BAT values apply to both and the two substances are also discussed together in the addendum of 2‐butoxyethanol. * no longer valid
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