ASTM D – Free download as PDF File .pdf), Text File .txt) or read online for free. New ASTM Method D With the manufacture of Freon banned by the Montreal Protocol in , the old ASTM method (D ) that used infrared. The FT-IR Environmental Hydrocarbons ASTM D Application Pack contains all of the resources and components necessary to perform efficient analysis of.
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Prerinse the sample bottle and cap with the solvent prior to sample collection. The volume should always be greater than 1? However, all traces of methylene chloride or other solvent must be removed so that they do not compromise the measurement. Several labs reported problems calibrating or detecting low levels of oil and grease using AK NOTE 4—For infrared instruments having computer capability, data may be obtained automatically or as described in 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.
If a concentration other than the recommended concentration is used, refer to Practice D for information on applying the F test and t test in evaluating the acceptability of the mean and standard deviation. 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.
ASTM D – standard test method by Infrared Determination
A superscript epsilon e indicates an editorial change since the last revision or reapproval. Ideally, the calibration curve obtained will be e7066 refer to Section However, this amount may be insufficient for some samples. However, in order to obtain consistent results between sample sets and between laboratories with different wastewater matrices, calibration with the known oil and grease in a sample should not be used in this method. Spiking solution section Introduction of pH paper to an actual sample or sample cap may remove some oil from the sample.
Freezing the sample may break the bottle.
FT-IR Environmental Hydrocarbons ASTM D7066 Analysis Pack
Calculate the percent recovery of the LCS using the following equation: However, place the reference cell in the reference beam during all scans. The optimum technique depends upon the sample, but may include stirring,?
To assure the most accurate concentrations, use the smallest serological pipet or syringe for measurements. In accordance with Section 1. If there is doubt about whether the aatm of silica gel is adequate, the amount needed should be determined by test. If the relative precision and average percent recovery are outside of theses limits, the initial demonstration should be repeated.
In the procedure below, the IR instrument is calibrated from 0. If emulsion forms aatm 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. Also, in relation to infrared? L of octanoic acid by the water volume in liters.
Under these circumstances, one of the following remedies must be employed: This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?
Spike an aliquot of the sample with a known 6 Where: Your comments are invited either for revision of this asgm or for additional standards and should be addressed to ASTM International Headquarters.
Therefore, samples must be collected as grab samples. If the result is not within these limits, analysis of samples is halted until the problem is corrected, and either all samples in the d066 must be reanalyzed, or the results must be quali?
Do not exceed 50 mL of total solvent during the extraction and rinse procedure.
Cap the bottle and shake well. Those not adsorbed are measured as nonpolar material.