Procedure 2. If the reaction is too slow to conveniently follow hydrolysis to high conversion in 672 hours but still rapid enough to attain at least 20 per- cent conversion, take 15 to 20 time points at regular intervals after 10 per- cent conversion is attained.
Procedure 2. If t h e r e a c t io n i s t oo s low t o co n ve n ie n t l y follow hy d r ol y s i s t o h ig h co n ve r s io n i n 672 h o ur s b u t s t ill r a pid e n o u g h t o a tt x x x x x xx x x x 20 pe r - ce n t co n ve r s io n , t a k e 15 t o 20 t i m e poi n t s a t r eg u l a r i n t e r v a l s af t e r 10 pe r - ce n t co n ve r s io n i s a tt a i n ed.
Procedure 2 for cases where the strap changes direction in passing through a rigid part. During this test, the angles of the straps shall be maintained as shown in Annex 11, figure 2, to this Regulation. The steady load of 0.5 xxX shall be maintained during the test. For cases where the strap changes direction more than once in passing through a rigid part, the load of 0.5 xxX xxx be increased so as to achieve the prescribed strap movement of 300 mm through that rigid part.
Procedure 2. Depending on the results obtained following the procedure 1, a second protocol will be applied. In this case, the ISO 6330:2012 for domestic washing will be also followed to evaluate possible nanomaterial migration to both adjacent fabric and water environment. This simulation is performed in a conventional washing machine, and accordingly, the weight of sample, the temperature and duration of the test as well as the detergent employed must be adapted. Waste water will be collected for further analyses through the evacuation tube of the washing machine (see figure 2). Figure 2: Conventional washing machines (left) used for the lab-washing experiments in procedure 2 and disposition of the evacuation tube to collect the laundering waters (right).
