Agricultural spray adjuvant
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The Pesticides Safety Directorate (PSD) defines an adjuvant as a substance other than water which is not in itself a pesticide but which enhances or is intended to enhance the effectiveness of the pesticide with which it is used. Adjuvants for use with agricultural pesticides have been categorised as extenders, wetting agents, sticking agents and fogging agents.
The American Society of Testing and Materials (ASTM) provides definitions for most commonly used agricultural spray adjuvant terms. These definitions can be found in their Standard E-1519, and are developed and maintained by ASTM subcommitee E35.
The Chemical Producers and Distributors Association offers participating companies the ability to self-certify their spray adjuvant products in the USA.
