ASTM D7066-04 PDF
ASTM D – Free download as PDF File .pdf), Text File .txt) or read online for free. Designation: D – An American National Standard. Standard. ASTM D_能源/化工_工程科技_专业资料。Designation: D – 04 An American National Standard Standard Test Method for. Buy ASTM D() Standard Test Method for dimer/trimer of chlorotrifluoroethylene (S) Recoverable Oil and Grease and Nonpolar Material by.
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The high probability that extractable matter may d7066-0 to sampling equipment and result in measurements that are biased low precludes the collection of composite samples for determination of oil and grease. Do not rinse the sample bottle with the sample to be analyzed.
Rinse the tip of the separatory funnel, Na2SO4,? 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.
Cool cell to room temperature before use.
It is highly recommended that calibration standards be prepared on a weight basis i. The optimum technique d766-04 upon the sample, but may include stirring,? This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Ideally, a linear calibration curve will be obtained from these standards.
The LCS can be the standard spiking solution However, all data must be obtained asm by one means or the other, not a combination of the two. Spike an aliquot of the sample with a known 6 Where: Alternatively, the actual sample density can be determined by weighing mL of the sample water in a tared mL? Freezing the sample may break the bottle. Cap the bottle and shake well. Spiking solution section Scan as in To assure the most accurate concentrations, use the smallest serological pipet or syringe for measurements.
However, this amount d77066-04 be insufficient for some samples. Do not attempt to proceed since accurate, quantitative results for the test are not obtainable.
ASTM D – standard test method by Infrared Determination
One laboratory disposed of its samples before performing the non-polar analysis. For double-beam operation, either block the light beam from the reference cell containing solvent or remove the reference cell from the instrument during the intervals between scans in order to protect the solvent from unnecessary warming. Keep a record of each dilution for use in A nearly horizontal, straight line should be obtained.
Subtract the volume of acid added to the sample, as recorded in 9. Summary of Test Method 4. Cap with the original cap and shake the sample bottle to rinse all interior surfaces.
To reduce the solvent expense, it may be prudent to use methylene chloride or a solvent other than the solvent used for extraction. Rinse with a small portion of solvent and discard the rinsate.
Remove the solid with a clean spatula, and add about 1 g of fresh sodium sulfate to the? Pour the solvent into d766-04 separatory atsm, rinsing down the sides of the transfer funnel.
The replicates may be interspersed with samples. Current edition approved June 1, Obtain the net absorbance for the peak that occurs near cm-1 3. Each replicate must be taken through the complete asfm test method including 5 If the concentration of oil and grease exceeds the calibration range, dilute extract to bring sample atsm calibration range.
Introduction of pH paper to an actual sample or sample cap may remove some oil from the sample. Of those measured, certain ones may be adsorbed by silica gel while others may not.
Obtain net values for single-beam and infrared? The volume should always be greater than 1? If emulsion forms between the phases and the emulsion is greater than one-third the volume of the solvent layer, the laboratory should employ emulsion-breaking techniques to complete the phase separation.
Your comments will receive careful consideration asm a meeting of the responsible technical committee, which you may attend. Similarly, this test method de? Calculate the asstm recovery of the LCS using the following s7066-04 However, all traces of methylene chloride or other solvent must be removed so that they do not compromise the measurement. If the sodium sulfate cakes when contacted with the extract,? 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.
Those not adsorbed are measured as nonpolar material. The data presented here is for reference or information only and may be useful if another interlaboratory c7066-04 validation study is performed.
The value obtained must fall within the control limits speci? In a few cases, the composition of the oil and grease in a sample will be known.