The Troxler Model 3450 RoadReader Plus can display measurement
results in either SI (metric) units or English units. Also, HM-181 of
49 CFR changes the standard units of radioactivity in the United
States from the English unit of curies (Ci) to the SI unit of
becquerel (Bq). This requires the shipper to convert the activity on
the Bill of Lading from curies to becquerels (GBq). Until everyone
is accustomed to the SI units, it is permitted to follow the SI units
with the English units in parentheses to clarify the description [for
example: 1.48 GBq (40 mCi)].
To help our users convert from English units to SI units, the table in
this appendix provides SI conversion factors for common English
units relevant to the 3450 gauge.
CONTENTS
Measurement Units ....................................................................... F–2
Radiological Units ........................................................................ F–2
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