1. some silica by aluminum. For the glasswool stonewool HT and crocidolite. For
2. fiber (MMVF1 1) the in vitro dissolution rate stonewool HT breakage of fibers was
3. was lower at acid pH than at pH 7.7 (7 11). detected for all fractions >10 pm in length.
4. In another study glasswool fibers with high Both breakage and the dissolution of fibers
5. solubility at pH 7.7 showed a rapid decrease are important reasons for the decrease of