Document LJ5bwk8R6o1ZO5dv1jNdwonO7

>-t*o ; ou Pon~ ge Nemours & Covn Wi.mington. Delaware VEE 1.AT:0\J 0A,*vcs"1 rcoru&ry 12, 197^ E. MARSH standards section CE5I0N DIVISION ENGINEERING DEPARTMENT SAT - ASBESTOS DL'ST EXPOSURE Comments cn proposed replies as transmitted under your letter of January 29, 1973, ere as rollows: No. 1 Change to read: * We cannot agree that 3.4.2 should be changed at this time to call for atmosphere supplying respirator protection on asbestos insulation dismantling and spraying only when required by the dust concentration level. This standard assumes that the limits will be exceeded when ever these operations are performed. On small Jobs or under favorable, controlled conditions, this may not be true, as several comments have Indicated. Therefore, tne subcommittee will welcome test data supporting less restrictive procedures for future consideration. No. 2 Change to read: This sentence was taken directly from OSKA. We believe it referred to testing the res piratory device. . . No. 29 Change to read: Thank you for your comment. No. 33 Add at end of reply: Thank you for your comment. scttc* tminos >* scttcx livino . . rumouaw chimutmr DUP 09C3C94 DU 024476