Document M4d2DXmYO8QGQ5y8pyOLxe2az

1 A That is one area. Page 2167 2 Q It goes on to say they are not fixed values, 3 but are reviewed annually by the committee on the 4 threshold limit values for changes, revisions or 5 additions as further information becomes available. 6 Threshold limit values should be used as 7 guides in the control of health hazards and should not 8 be regarded as a fine line between safe and dangerous 9 conditions. 10 Let me stop there. 11 Now, that is what you have been saying all 12 along, isn't it? 13 -A Yes. 14 Q But then it goes on to say, they represent 15 conditions only within which it is felt that workers 16 may be repeatedly exposed day after day without their 17 health being adversely affected. 18 So what they are saying in the next sentence 19 is based upon what we know in 1953, they can be 20 exposed to these levels, and we feel in '53 that they 21 won't get sick.