Berthold LB 444 - Absorption Coefficients; Temperature Coefficients

Density Meter LB 444 SECTION 10. APPENDIX
93
10.3 Absorption Coefficients
Absorption coefficients for 137-Cs at one-point calibration.
Crystal size 25/25 and 40/35 with frontal irradiation
1. When using a 50/50 crystal, multiply the values listed below by 0.9. With ra-
dial irradiation, these values must be multiplied by 0.85.
2. For measurements with Co-60 sources the listed absorption coefficients must
be multiplied by 0.6.
3. The absorption coefficients were calculated for average concentrations. De-
pending on the resolution behavior, these values may differ with other con-
centrations.
Absorption coefficients in cm
2
/g
Product
g/cm
3
% conc. Conc. in g/l
Whole milk - .0737 - .00018 - .000017
Skim milk - .0737 - .000027 - .000295
Whey - .0737 - .000294 - .0000254
Sugar solution - .0657 - .00044 - .000021
Hydrochloric acid (HCl) - H
2
O
- .0608 - .0003 - .000025
Sulfuric acid (H
2
SO
4
) - H
2
O
- .0623 - .0005 - .000036
Nitric acid (HNO
3
) - H
2
O
- .0576 - .00036 - .000027
Sodium hydroxide (NaOH) - H
2
O
- .0664 - .00069 - .000049
Ethanol (C
2
H
6
O) - H
2
O
- .0677 + .00014 + .000018
Propyl alcohol (C
3
H
8
O) - H
2
O
- .0673 + .00015 + .0000186
Glycerin (C
3
H
5
(OH
3
) - H
2
O
- .0667 - .00017 - .000015
10.4 Temperature Coefficients