Document 06ker6kLYzre87y2eLarZ54DR

r r r r i t, i ii l 1 L L I I I i. Hr. Jerry Crawford 2-OZ - OH - 6^81 Director of Safety Naval Ship Systeaa Field Activities ISch and Conatitutlon Avenue, N.V. Washington, D.C. 20360 Dear Hr. Crawford: As you know, I received a copy of Hr. Price's letter to you, dated March 26, 1970. I do not know vhat additional 1 can say except to reaffirm vhat Mr. Price said and vhat you nay have learned in subsequent conversation with Captain Norbert. Rosenvinkel of SuMed. The physical characteristics in regard to apparent dust produced by the calciun silicate asbestos insulation, vhen cospared to unibestos, vere sufficiently different to Justify delay in any action that vould prejudice the use of unibestes until the study by the University of California, vhich you received a copy of, could deternine vhleh type of product produced the larger enount of respirable asbeatoa dust vhen handled in a naaner siailar to nornal installation and tear out procedures. If I can be of further assistance, please let ne know. Sincerely, ALBC:lc ; Jit* Jaiui-a^-ZrJxe Captain N. Eoaenvinkei Lee 2. Crsnt, K.D. Medical Director -P6000175S