API Gravity – Petroleum – Digital Density Meter Application Note. API Gravity – Petroleum – Digital Density Meter Application Note. API Gravity – Density Meter. Buy ASTM D TEST METHOD FOR DENSITY AND RELATIVE DENSITY OF CRUDE OILS BY DIGITAL DENSITY ANALYZER from SAI Global. Purchase your copy of ASTM D – 16 as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards available.
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The laboratory test container and sample volume shall be of sufficient dimensions to allow mixing as described in 8.
Precise setting and control of the v5002 temperature in the sample tube is extremely important. Current edition approved Sept. No other units of measurement are included in this standard.
When these conditions exist in d50002 laboratory, pass the air used for calibration through a suitable puri? Historical Version s – view previous versions of standard. No other units of measurement are included in this standard.
It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. NOTE 3—In applying this periodic calibration procedure, it has been found that more than one value each for D5002 and B, differing in the fourth decimal place, will yield the correct reading for the density of air and water.
Chromic acid solution is the most effective axtm agent; however, surfactant-type cleaning? Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. Sampling, Test Specimens, and Test Units 8.
When bubbles are absent and the sample is at equilibrium with the test temperature, the displayed values are stable, do not drift, and show only small variations of the order of 61 to 2 units in the last signi? The accepted units of measurement of density are grams per millilitre and kilograms per cubic metre.
Thereafter, conduct calibration checks at least weekly during routine operation or more frequently as may be dictated by the nature of the crude oils being measured see Work Item s – aztm revisions of this standard.
PAC-Lab Instruments-ASTM D
A number in parentheses indicates the year of last reapproval. Users should, therefore, be aware that results obtained by this test method can be biased by as much as 0. In calibrating the thermometer, the ice point and bore corrections should be estimated to the nearest 0.
Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
The setting selected by this method could have the effect of altering the fourth place of the reading obtained for a sample.
In addition, the inlet and outlet ports for the U-tube must be plugged during measurement of the calibration air to prevent ingress of moist air. Although this condition can be compensated for by adjusting A and B, as described below, it is good practice to clean the tube with warm chromic acid solution Warning—Causes severe aatm.
ASTM D5002 – 16
Turn the illumination light off immediately after inspection of the sample tube, since the heat generated affects the measurement temperature. D55002 the syringe in place and plug the exit port.
The test specimen is obtained as follows: The sample tube shall be completely full. Mixing at room temperature in an open container can result in the loss of light ends, so mixing in closed, pressurized containers or at sub-ambient temperatures is recommended.
ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. If the instrument has been calibrated to display the relative density, adjust the reading to the value 1. The matrix for this bias study was comprised of 15 participants, each analyzing four reference oils with certi?
Lighter crude oil can require special handling to prevent vapor losses. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.
Reagents and Materials 7. This test method applies to crude oils with high vapor pressures provided appropriate precautions are taken to prevent vapor loss during transfer of the sample to the density analyzer. Use the procedure in The setting chosen would then be dependent upon whether it was approached from a higher or lower value.
If stable values are not observed after a few minutes, then repeat the injection of a new sample into the tube.