||The material shall consist of a suspension of micro-capsules containing technical lambda-cyhalothrin, complying with the requirements, in an aqueous phase, together with suitable formulants. After agitation, the material shall be homogeneous and suitable for further dilution in water.
|Release of lambda-cyhalothrin
||The release of lambda-cyhalothrin from the capsules shall be:
at 15 min, 30 to 75% of that released at 180 min; and
at 30 min, 50 to 90% of that released at 180 min; and
at 180 min, a minimum of 80% of the total lambda-cyhalothrin content
||A minimum of 75% of the lambda-cyhalothrin content shall be in suspension after 30 minutes in CIPAC standard water D at 30 ± 20C
|Wet sieve test
||>A maximum of 0.1% w/w shall be retained on a 75 µm test sieve.
||Maximum: 5 ml after 1 min.|
||After undergoing 4 freeze/thaw cycles (between 20 ± 20C and -3 ± 20C in 18-hour freeze/6-hour thaw cycles) and following homogenization, the formulation shall continue to comply with the clauses for:
spontaneity of dispersion;
Wet sieve test
|Stability at elevated temperature
||After storage at 0 ± 2°C for 7 days, the formulation shall continue to comply with the clauses for:
– Wet sieve test