Richard C. So the Control Limit for Serpentine is lower than for Amphibole is it in CAR 2006? Your comments about Crocidolite being more dangerous that Amosite or Chrysotile are very outdated, maybe you need a refresher course before you go spouting old legislation, ---- bla, bla, bla, bla ---- You may have guessed i am rather irked at having some no mark say cobblers to a post that was 100% factually correct.