December 3, 1971 Mr.

MEMORANDUM I date: November 9, 1971 SUBJECT: XO: Mr.

n June 15, 1973 7,eb Dell '` Walter Harris i Russ Maycock Maurey Johnson * Dill Rinehart -V R.

JUL 12 1973 July 9, 1973 TECHNICAL TASK GROUP ON VINYL CHLORIDE RESEARCH ADDRESS LIST Dr.

MANUFACTURING CHEMISTS ASSOCIATION 1825 CONNECTICUT AVENUE, N.W.

12 #3500 ORGANIC VAPOR MONITOR NIOSH EVALUATION OF DIFFUSIONAL MONITORS We have been made aware that there is conflicting informa tion CIRCULATING ABOUT THE CURRENT TESTS BEING CONDUCTED BY NIOSH/ ESPECIALLY CONCERNING THE PERFORMANCE OF THE OVM #3500, Because of the: design of the test protocol, there are some test conditions under which all diffusion-type monitors will do badly.

ANOTHER STEP TOWARDS BETTER OCCUPATIONAL HEALTH AND SAFETY 12 #3500 ORGANIC VAPOR MONITOR NIOSH EVALUATION OF DIFFUSIONAL MONITORS We have been made aware that there is conflicting informa tion CIRCULATING ABOUT THE CURRENT TESTS BEING CONDUCTED BY NIOSH, ESPECIALLY CONCERNING THE PERFORMANCE OF THE OVM #3500.

5 December 7, 1973 it f=_ *.

to Purchaser: ' samplers described herein, i!

\ 658 THE NEW ENGLAND JOURNAL OF MEDICINE March 18. 1976 CASE RECORDS OF THE MASSACHUSETTS GENERAL HOSPITAL Weekly Clinkopftthological Exercises KOKBtD BT BXCKABD C.

SURVEY COMPLIANCE COSTS & EXPENSES--VCM STANDARDS 1.

AN DU M X date: March 15, 1972 SUBJECT: OCCUPATIONAL SAFETY AND HEALTH ACT IMPLICATIONS to: Mr.

Internal C rrespondence cc: W.

T^rducU- and C6efTLLVlt DISTRt3&TfOfT~______________ From B.

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