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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Under these circumstances, one of the following remedies must be employed: If the concentration of non-polar material exceeds v7066-04 calibration range, dilute the extract d766-04 bring the concentration within the calibration range. The spiking solution may be used as an IRM. The value obtained must fall within the control limits speci?
Weighing will be more accurate. Collect an additional 1 or 2 sample aliquots for the matrix spike and matrix spike duplicate Section Other grades may be used, provided it is?
Keep a record of each dilution for use in The data presented here is for reference or information only and may be useful if another interlaboratory method validation study is performed. L for solution density of 0. Alternatively, solid-phase extraction SPEcontinuous liquid-liquid extraction, or other extraction techniques may be used to prevent emulsion formation.
Due to the cost of performing the analysis, each matrix tested contained only one set of Youden pair concentrations. Freezing the sample may break the bottle. Several labs reported problems calibrating or detecting low levels of oil and grease using AK In accordance with Section 1.
Ideally, the calibration curve obtained will be linear refer to Section The replicates may be interspersed with samples.
Pour the solvent into the separatory funnel, rinsing down the sides of the transfer funnel. If you feel that your comments have not received a fair hearing you should make your views d7066-04 to the ASTM Committee on Standards, at the address shown below.
A solution containing equal volumes of isooctane and octanoic acid will have a density of 0. C One laboratory reported a result of for oil and grease, nearly 3 times the mean recovery among the other laboratories, and a value of zero for non-polar material, which are highly suspect results.
If calibration is not veri?
L of isooctane by the water volume in liters. Rewet sodium sulfate with solvent before use. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.
A superscript epsilon e indicates an editorial change since the last revision or reapproval. A fresh spiking solution should be prepared weekly or bi-weekly. Cap with the original cap and shake the sample bottle atm rinse all interior surfaces.
ASTM D – standard test method by Infrared Determination
The extract is diluted to 50mL and a portion is examined by infrared spectroscopy IR for an oil and grease measurement. To reduce the solvent expense, it may be prudent to use methylene chloride or a solvent other than the solvent used for extraction. Cap the bottle and shake well.
Precision and Bias Prerinse the sample bottle and d766-04 with the solvent prior to sample collection.
If a sample is encountered that exceeds the calibration range, dilute the sample extract to bring the concentration into the calibration range. The test blank must be taken through all of the steps of the analytical method including sample preservation and pretreatment. Current edition approved June 1, Take care to avoid insertion of the cell d70066-04 so tightly that the cell could burst from expansion of its contents as it resides in the light beam.