PHTGPublic Health Task Group (UK)
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References in periodicals archive ?
In the API's initial test plan for the Petroleum Gases Category, its Petroleum HPV Testing Group (PHTG) proposed separate acute mammalian, repeated dose, reproductive, and developmental toxicity tests on each of the individual gases ethane, butane, propane, and isobutane, even though these gases are explosive at concentrations below those at which health effects are observed and have been shown to act primarily as simple asphyxiants (Nicholson et al.