Permethrin 500 g/kg
The material shall consist of technical permethrin complying with the requirements of FAO Specification 331/TC/S (1991), dissolved in suitable solvents and with any other necessary formulants. It shall be in the form of a stable liquid, free from visible suspended matter and sediment.
Maximum 3 g/kg
Not higher than 1.5 g/kg, calculated as H2SO4.
Emulsion stability and re-emulsification
0 h Initial emulsification complete
0.5 h 'Cream', maximum: 1 ml
2.0 h 'Cream', maximum: 2 ml
'Free oil': nil
24 h Re-emulsification complete
24.5 h 'Cream', maximum: 2 ml
'Free oil', maximum: 2 ml
If required, the flash point of the product shall not be lower than 23°C declared flash point. A closed cup method shall be used and the method stated
Stability at 54 ± 2°C
After storage at 54 ± 20C for 14 days, the product shall continue to comply with permethrin content and acidity.