The material shall consist of a homogeneous mixture of technical permethrin, together with filler(s) and any other necessary formulants. It shall be in the form of a fine powder, free from visible extraneous matter and hard lumps.
Wet sieve test
Maximum: 0.5% retained on a 75 µm test
A minimum of 50% of the permethrin content found in suspension after 30 minutes in CIPAC Standard Water C
Wetting of the product
The product shall be completely wetted in 2 minutes without swirling.
Storage stability at 54 ± 20C
After storage at 54 ± 20C for 14 days, the product shall continue to comply with Wet sieve test and Suspensibility.