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Pure Appl. Chem., Vol. 68, No.5, pp. 1167-1193, 1996

Glossary of Terms Relatings to Pesticides

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ultra low volume (ULV) spray Signifies that the total volume rate of spray application is very low (5 litres per hectare or less). ULV pesticide formulations are generally specially developed for the purpose and are applied undiluted.

uncertainty factor Factor in toxicological assessment for extrapolation of data from experimental animals to man (assuming that man may be more sensitive) or from selected individuals to the general population. For example an uncertainty factor is generally applied to the no-observed effect level to derive an acceptable daily intake.

UVD Ultraviolet absorption detection.

validation In pesticide analysis, the process for establishing that an analytical method or equipment will provide reliable and reproducible results.

vehicle See carrier.

volatilisation Evaporation of a pesticide into the atmosphere from a solid or liquid form.


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> Synopsis
> Preface

> References


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