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ASTM International, 06/01/2013
Publisher: ASTM
File Format: PDF
$32.00$64.00
Published:01/06/2013
Pages:6
File Size:1 file , 110 KB
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1.1 These test methods cover the determination of the specific gravity of water and brine free of separable oil, as follows:
Sections
Test Method A-Pycnometer
7 to 11, 21
Test Method B-Balance
12 to 16, 21
Test Method C-Erlenmeyer Flask
17 to 21
Test Method D-Hydrometer
22 to 27
1.2 Test Methods A and B are applicable to clear waters or those containing only a moderate amount of particulate matter. Test Method B is preferred for samples of sea water or brines and is more sensitive than Test Method D which has the same general application. Test Method C is intended for samples of water containing mud or sludge.
1.3 It is the user's responsibility to ensure the validity of these test methods for waters of untested matrices.
1.4 The test method was tested at 22°C over a range, shown in Tables 1-4, of 1.0252 through 1.2299; all data were corrected to 15.6°C (60°F).
Calculated Specific Gravity
Specific Gravity Experimentally Determined
ST
SO
% Bias
Statistically Significant (95 % Confidence Level)
1.0247
1.0262
0.00145
0.00023
−0.049
yes
1.0648
1.0665
0.0012
0.00019
+ 0.16
1.1100
1.1119
0.0010
0.00034
+ 0.17
1.2299
1.2235
0.00037
−0.52
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