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 test blank must be taken through all of the steps of the analytical method including sample preservation and pretreatment. Collect an additional 1 or 2 sample aliquots for the matrix spike and matrix spike duplicate Section Spike an aliquot of the sample with a known 6 Where: A fresh spiking solution should be prepared weekly or bi-weekly.
L of octanoic acid by the water volume in liters. Each replicate must be taken through the complete analytical test method including 5 Therefore, samples must be collected as grab samples.
The same cell or matched cells should be used throughout the calibration. The LCS must be taken through all of the steps of the analytical method including sample preservation and pretreatment.
If a sample is encountered that exceeds the calibration range, dilute the sample extract to bring the concentration into the calibration range.
If you feel that your comments d77066-04 not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. Do not rinse the sample bottle with the sample to be analyzed.
If calibration is not veri? The volume should always be greater than 1?
Keep a record of each dilution for determination of the concentration in the sample in Other grades may be used, provided it is? As discussed in Section 11, the concentrations of these standards can be adjusted to stay within the linear range of the IR instrument. e7066-04
If such an emulsion cannot be broken by any attempted means, the test method is not applicable to the problem sample. Cap the bottle and shake well. Unless otherwise indicated, d706-604 is intended that all reagents shall conform to the speci? Summary of Test Method 4. L of isooctane by the water volume in liters. If the sample is to be shipped by commercial carrier, U.
Take care to avoid insertion of the cell stopper so tightly that the cell could burst from expansion of its contents as it resides in the light beam. If the percent recovery is not within these limits, a matrix interference may be present in the sample selected for spiking. Scan as in Alternatively, the actual sample density can be determined by weighing mL of the sample water in a tared mL?
If linearity cannot be achieved past a certain concentration, consider that concentration the upper bounds of the calibration and adjust the calibration standards accordingly.
L for solution density of 0. Several labs reported problems calibrating or detecting low levels of oil and grease using AK The spike d7066-04 produce a concentration in the spiked sample that is 2 – 5 times the background concentration or 10 times the detection limit of the test method, whichever is greater. The high probability atsm extractable matter may adhere to sampling equipment and result in measurements that are biased low precludes the collection of composite samples for determination of oil and grease.
ASTM D – standard test method by Infrared Determination
In a few cases, the composition of the oil and grease in a sample will be known. Be sure to record the concentration added to each replicate. If the relative precision and average percent recovery are outside of theses limits, the initial demonstration should d0766-04 repeated.