Document G0gJveKXv6aG4GabxNxy6RLx

FILE NAME Manville JMA DATE 1970 Apr 28 DOC JMA085 DOCUMENT DESCRIPTION Memo RE Asbestos Rope Exposures 1. M. Ball GHQ C. L. Sheckler - GHQ ( besvantafekt besvantafekt and besvantafekt besvantafekt besvantafekt dagineering dagineering ApArp ilri 28 l 1970 Center P 7m 7m Prod Tox Tox MANVILLE PRODUCT PROPOSAL 030-85 BLUE ASBESTOS ROPE STYLE NO 4194 inclosed inclosed are copies of J. A. Krochta's letters letters of February 5 and March 11 1970 and N. D. Brown's letter of February 18 1970 for your background information Manville has made and marketed the subject product for many years Now in order to eliminate its manufacture it is proposed to purchase it from another manufacturer and market it The question has been raised as to whether and if so how it should be labelled as a hazardous product In order to help determine the hazard involved in its handling and application a test was made to determine the amount of airborne asbestos dust generated in a simulated use An assembled Transite coupling and piece of Transite pipe were caulked with two layers of Blue Asbestos Rope After the caulking was completed the new pipe and coupling were disassembled and period period rope a total of six times in a period the process repeated of 49 minutes using inring the entire time the operator Air Sampler the same as used in our Survey Sampling wore a Membrane Filter Personal Industrial Hygiene Asbestos Dust The fiber count was 1.7 cc va the basis of this test we think the product should be labelled Although the exposure is not severe the fact that it is crocidolite makes extra caution appropriate We suggest a paraphase of our present Caution Label on bagged asbestos fiber as follows This product this material this material contains asbestos fiber Persons exposed should use adequate protective devices as over long periods may be harmful to dust from inhalation inhalation inhalation inhalation inhalation inhalation inhalation of of C. . Sheckler - GRQ April 28 1976 We would appreciate your comments comments regregarding arding the suitability of the above phrosing or your alternative proposed wording me proposed wording deals only with the Knowledge of the application or possible use in production of foods or medicines lattelr atter airborne hazard We have no problems associated as alluded co in N. with its D. Brown's Brown's fiw , . 1 : t a wf G. 4S, Lev Swaellaw H. L. Rucker - REC 4. J. Palumbo - REC N. D. Brown - DHQ A. A. Krochta - Manville File File 2. M. M. Chrono Fenner ja