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ASTM
E2408-04(2015)
Standard Test Method for Relative Extensional Viscosity of Agricultural Spray Tank Mixes
2015
4
ASTM Vol.11.08 (2022)
This test method covers the determination of the relative extensional viscosity or Screen Factor (SF) of dilute agricultural spray mixes.
The test can be used for tank mixes containing dissolved, emulsified or dispersed materials, or mixtures.
Results may be affected by the quality of the water used. Make-up water quality should therefore be specified in the presentation of results.
Proper safety and hygiene precautions must be taken when working with pesticide formulations to prevent skin or eye contact, vapor inhalation, and environmental contamination. Read and follow all handling instructions for the specific formulation and conduct the test in accordance with good laboratory practice.
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