APPENDIX E
UNIT CONVERSION
The 4640-B gauge 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 conversions factors for common English
units relevant to the 4640-B gauge.
E
. U
N
IT
C
O
N
V
E
R
S
IO
N
CONTENTS
Measurement Units.......................................................................E–2
Radiological Units ........................................................................E–2
Model 4640-B
Appendix
E–1
Summary of Contents for 4640-B
Page 6: ...NOTES vi...
Page 12: ...NOTES xii...
Page 17: ...1 GENERAL INFORMATION Figure 1 1 Model 4640 B Parts and Accessories Model 4640 B 1 5...
Page 22: ...NOTES 1 10...
Page 26: ...NOTES 2 4...
Page 84: ...NOTES Appendix A 12...
Page 108: ...NOTES Appendix C 18...
Page 130: ...NOTES Appendix F 8...