The compost is visually observed at regular time intervals to detect any adverse effect of the test material on the composting process. At the end of the test the maturity of the compost is determined and the mixture of compost and test material is sieved through 2 mm and 10 mm mesh sieves. The disintegration of the test material is evaluated on the basis of the total dry solids by comparing the fraction of test material retained by the 2 mm sieve and the amount tested. The compost obtained at the end of the composting process can be used for further measurements such as chemical analyses and ecotoxicity tests