Document nm36gdBmQNVqrad17536Z83Dm

`-'o. ANALYTICAL RESEARCH LABORATORIES, INC. I0 TAYLOR STREET. R.O. BOX 369. MONROVIA. CALIFORNIA 91016 (213) 357.32*7 1 March 1976 LL 26019^ The fc!lowing test was performed to determine whether a significant amount of asbestos fibers is released to the atmosphere when individual cables are removed from a group of cables that have been sprayed with Flamemastic 71A. Eleven one inch cables end one cable bundle comprised of 3, one-half inch intertwined cables, were placed in a twelve inch P-W Western cable tray. The ccbles end tray were twelve feet long and the cables were individually attached to the tray. Flamemcster Corporation personnel sprayed the filled tray top and bottom with a 1/8" thick coating of Flamemastic 71A. The coating was allowed to dry for six days and the dried materia! had an average thickness of about 1/16". The cocted tray and ecbles were brought to Analytical Research Laboratories for testing. Asbestos fibers were monitored by three devices during the removal of the cables: 1. Anclytica! Research Lab., Inc. sampler (ARLJ- Stationary) - filter was mounted approximately three feet above the tray and equidistant from the ends of the tray. 2. Analytical Research Lab., Inc. sampler (ARLJ - Operator) - filter wes cftached to the person removing the cables, in his breathing zone. 3. Ficmemoster Corp. - MSA portable sampler (FMEN - 1) - filter was held by a second operator at the point where the coble was being removed from the fray. This filter was from six to twelve inches from the Flcmemcstic 71A coating, cs it was breaking loose from the tray and ccbles. This filter followed the removal of all twelve cables in the manner described above. The operator removed the cables from the tray individually. Total time to remove the twelve cobles was 15.5 minutes. Page 2 of 2 1 March 1976 LL 26019 The filters were examined by the method described in the NIOSH Bulletin HSM 72-10267 (1972) by Mr. K. Inouye of ARll. The results are as follows: SAMPLE ARLI - Stationary ARLI - Operator FMEN-1 SAMPLING RATE 3 1,/min. for 15.5 mins. 3 1/min. for 15.5 mins. 2 1/min. for 15.5 mins. ASBESTOS PARTICLE COUNT 0.07/cc. 0.07/cc. 0.15/cc. CONCLUSION: The level of airborn asbestos fibers produced during removal of the cables from the Flamemastic 71A coated bundles is significantly less than the existing (5 fiber/cc.) or proposed { .5 fiber/cc.) OSHA limits.