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Permethrin 100 g/kg
3-phenoxybenzyl (1RS,3RS;1RS,3SR)-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate

391.3
The material shall consist of technical permethrin, complying with the requirements of
WHO specification WHO/SIT/28.R1, dissolved in suitable solvents, together with other necessary formulants. It shall be in the form of a stable homogeneous liquid free from visible suspended matter and sediment to be applied as an emulsion after dilution in water.
Not higher than 3 g/kg
Not higher than 1.5 g/kg, calculated as H2SO4.
Not lower than 380C and shall comply with all national and/or international transport regulations.
Stability of the emulsion
In WHO standard soft water. Any separation, including creaming/oiling at the top and oiling/sedimentation at the bottom, of 100 mL of emulsion prepared in WHO standard soft water (WHO/M/29) with 5 mL of concentrate shall not exceed 2 mL when tested as described in WHO/M/13.R4.
In WHO standard hard water. Any separation including creaming/oiling at the top and oiling/sedimentation at the bottom, of 100 mL of emulsion prepared in WHO standard hard water (WHO/M/29) with 5 mL of concentrate shall not exceed 2 mL when tested as described in WHO/M/13.R4.
In WHO standard soft water: A maximum of 60 mL of foam shall be observed after 1 minute.
The concentrate, after treatments comply with Total permethrin content, Acidity, Stability of the emulsion.