Geology Reference
In-Depth Information
Table 12-1
Density of Water a [2]
Temperature, °C (°F) Density of Water, g/ml
18 (64.4) 0.99862
19 (66.2) 0.99843
20 (68.0) 0.99823
21 (69.8) 0.99802
22 (71.6) 0.99779
23 (73.4) 0.99756
24 (75.2) 0.99733
25 (77.0) 0.99707
26 (78.8) 0.99681
a Values other than shown may be obtained by referring to the
Handbook of Chemistry and Physics, Chemical Rubber Publishing
Co., Cleveland, Ohio.
(4.1.10) When the base plate is used for the calibration of the mold
volume, repeat (4.1.3) through (4.1.9).
(4.2) Linear-Measurement Method:
(4.2.1) Using either the vernier caliper or the inside micrometer,
measure the diameter of the mold six times at the top of the mold
and six times at the bottom of the mold, spacing each of the six top
and bottom measurements equally around the circumference of the
mold. Record the values to the nearest 0.001 in. (0.02 mm).
(4.2.2) Using the vernier caliper, measure the inside height of the
mold by making three measurements equally spaced around the
circumference of the mold. Record values to the nearest 0.001 in.
(0.02 mm).
(4.2.3) Calculate the average top diameter, average bottom diameter,
and average height.
(4.2.4) Calculate the volume of the mold and record to the nearest
0.0001 ft 3 (1 cm 3 ) as follows:
2
h
d t
d b
1
p
21
21
2
V
1
English Gravitational System
2
16
1728
1
21
2
2
h
d t
d b
1
p
21
21
2
V
International System
1
2
10 3
16
1
21
2
where:
V
volume of mold, ft 3 (cm 3 )
h
average height, in. (mm)
d b
average top diameter, in. (mm)
d t
average bottom diameter, in. (mm)
constant to convert in. 3 to ft 3
1
1728
constant to convert mm 3 to cm 3
1 10 3
(5) Comparison of Results
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