RD50

AcronymDefinition
RD5050% Respiratory Rate Decrease
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References in periodicals archive ?
jambhiri gave lowest RD50s value (4.40%) against adults when compared with other citrus cultivars.
Calculation of maximum admissible concentrations (MACs) from exposure concentration producing a 50% respiratory rate decrease in mouse exposed to a geometric series of concentrations of airborne irritants (RD50) Concentration of substance causing Expected effects of the irritating an irritation in the activity of the substances in humans animals [RD.sub.50] concentration tolerated by humans 1/10 [RD.sub.50] concentration resulting in slight irritation of eyes, nose and throat 1/100 [RD.sub.50] none or very slight irritating activity Fig.