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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After running, drain, and clean the sample cell.
If the concentration of the analyte is less than? The replicates may be interspersed with samples.
ASTM D – standard test method by Infrared Determination
The spiking solution may be used as an IRM. NOTE 5—Use of the d70066 sulfate is necessary to prevent water from interfering in the determination. Calculate the calibration factor CFx in each of the? If calibration is not veri? The amount of acid required will be dependent upon the pH and buffer capacity of the sample at the time of collection.
Obtain net values for single-beam and infrared? Alternatively, samples can be collected in the? A fresh spiking solution should be prepared weekly or bi-weekly. Transfer volumes have been rounded for ease of measurement and calculation.
It is desirable to? Do not exceed 50 mL of total solvent during the extraction and rinse procedure. Keep a record of each dilution for use in Vent the funnel slowly to prevent loss of sample.
FT-IR Environmental Hydrocarbons ASTM D7066 Analysis Pack
X7066 reduce the solvent expense, it may be prudent to use methylene chloride or a solvent other than the solvent used for extraction. Do not rinse the d766 bottle with the sample to be analyzed. A number in parentheses indicates the year of last reapproval. NOTE 6—Certain types of samples, such asttm those containing a large amount of detergent, may form an emulsion during the extraction.
Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Spike an aliquot of the sample with a known 6 Where: Also, in relation to infrared? Wet thoroughly with solvent before using. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.
Either the average calibration factor CFm or the calibration curve is used, not both. Collect an additional 1 or 2 sample aliquots for the matrix spike and matrix spike duplicate Section This standard is subject to revision at any time by the astk technical committee and must be reviewed every? Obtain the net absorbance for the peak that occurs near cm-1 3.
Keep a record of each dilution for determination of the concentration in the sample in L for solution density of 0. Drain and clean the sample cell. L of octanoic acid by the water volume in liters. If the concentration of non-polar material exceeds the calibration range, dilute the extract to bring the concentration within the calibration range.
Ideally, the calibration curve obtained will be linear refer to Section Other grades may be used, provided it is?
Unless otherwise indicated, it is intended that all reagents shall conform to the speci? Alternatively, the actual sample density can be determined by weighing mL of the sample water in a tared mL?
Calculate the percent recovery of the LCS using the following equation: Freezing the sample may break the bottle. Be sure to record the concentration of oil and grease and non-polar material added. Do not allow the sample to over? However, all data must be obtained consistently by one means d766 the other, not a combination of the two.