Document 3Jq5K0E3OEK4BNGrq0YqEp1oa

FILE NAME: Allied Signal Bendix (ASB) DATE: 1974 Mar 14 DOC#: ASB125 DOCUMENT DESCRIPTION: Memo RE Asbestos Levels M em orandum D a te March 14, 1974 Letter No. t o James W. Armstrong F ro m John R iop elle subject Asbestos Levels Dvsscr Cleveland, T e n n e ss e e Please re fe r to your 3/4/74 le t t e r on the above subject. Re garding the 17.1 average asbestos fib e r level on block briquette press 15-7 i t is important to note that the tests producing th is re s u lt were made immediately upon completion o f the in s t a lla t io n of the exhaust v e n tila tio n system on th is press. As you know, th is is the press upon which we delayed in s ta lla t io n o f the exhaust v e n tila tio n system fo r business reasons. Thus, we believe the high fib e r level resulted more from the need to make the usual adjustments to a new in s t a lla t io n than from the actual c a p a b ility o f the system. In support o f th is b e lie f th is press now has. a 5.7 average asbestos fib e r le v e l, based on tests made on 2/28/74 - a month a fte r the in s t a lla t io n o f the exhaust^ventilation system. In s ta lla tio n of the automatic mix feed systemshould fu rth e r reduce the fib e r level to some value below the current 5.0 s p e c ific a tio n . Your le t t e r also states that the reclaim room had 5 samples exceeding 10 fib e rs . Here i t is important to note that these values were based upon tests made on reclaim chopper 19-3 and 19-4 before moving th is equipment in to the reclaim room. As you know, th is move was made during our Christmas1973 shut down. The equipment w ill operate in a closed room and be loaded from outside the room via ..a conveyor system. ' Referring to the chart attached to your 3/4/74 le t t e r we note a 6.2 fib e r level on the block external grinder from the January, 1974 sampling. This is an e rro r - the correct value is 1.6. ,c: R. B la i r C. Clarke^ C. Eadsv c. Menz A. St. John J. Treacy