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Definitions

1. break, by (measurement e.g. 4 x 8), times. (BPL 5 Nov 72RA)

3. it doesn't mean this didn't RS, it doesn't mean this didn't RR, it means this does not produce any reaction of any kind on the meter. (SH Spec 255, 6304C04)

4. didn't read. (HCOB 29 Apr 69)

5. experimental. (SH Spec 235, 6302C07)