Paragraph 6.3.3.3.2 Test procedureF1

a minimum of four full aerosol dispensers per product shall be conditioned to 20 °C ± 1°C with at least 95% of the dispenser immersed in the water for at least 30 min before each test (if the aerosol is fully immersed, 30 minutes conditioning is sufficient);

comply with general requirements. Record the temperature and relative humidity of the environment;

determine the internal pressure at 20°C ± 1 °C (to eliminate faulty or partly filled aerosol dispensers);

measure the discharge or flow rate of the aerosol product to be examined, so that the amount of test product dispensed can be more accurately gauged;

weigh one of the aerosol dispensers and note its mass;

on the basis of the measured discharge or flow rate and following the manufacturer's instructions, release approximately 5 g of the product onto the centre of the clean watch glass with the aim of producing a mound no higher than 25 mm;

within five seconds of completion of discharge, apply the source of ignition to the edge of the sample at its base and at the same time start the chronometer (stopwatch); if necessary, the ignition source shall be removed from the edge of the sample after approximately two seconds, in order to clearly observe if ignition has occurred; if no ignition of the sample is apparent, the ignition source shall be reapplied to the edge of the sample;

if ignition occurs note the following points:

ventilate the test area immediately after each test;

if ignition is not obtained and the released product remains in the form of a foam or paste throughout its period of use, steps (e) to (i) shall be repeated; allow the product to stand for 30 seconds, 1 minute, 2 minutes or 4 minutes before applying the ignition source;

repeat the test procedure steps (e) to (j) twice more (a total of 3) for the same can;

repeat the test procedure steps (e) to (k) for another two aerosol cans (3 cans in total) of the same product.