Metrohm’s CIC does it: ASTM D Standard Test Method for Total Fluorine, Chlorine and Sulfur in Aromatic Hydrocarbons and Their. Significance and use according to ASTM D – 14a. ASTM D – Standard Test Method for Total Fluorine, Chlorine and Sulfur in Aromatic Hydrocarbons and Their Mixtures by Oxidative Pyrohydrolytic.
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The autosampler may be used as long as the accuracy and performance of the method is not degraded. The standards, therefore, must be analyzed by the ion chromatograph in the same manner as the sample solutions. In CIC the samples are first digested under an argon atmosphere in the oven unit and then burnt with oxygen.
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D — 08 Standard Test Method for This standard is issued under the? This standard is also available to be included in Standards Subscriptions.
NOTE 12—Samples larger than 80? The net result of larger sample sizes is an increase in sensitivity and precision of the analysis while lowering the absolute detection limit of the CIC system. The r7359 and sulfate anions are separated into individual elution bands on the separator column of the IC. Exercise extra care when using? Reagents and Materials 7. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
ASTM D – Delivery of hydronium ions for suppression by electrolysis of recycled eluent through a cation exchange membrane.
Link to Active This link will always route to the current Active version of the standard. If bubbles are present in the liquid column,?
ASTM D – 14a : Total Fluorine, Chlorine and Sulfur in Aromatic Hydrocarbons
In contact with the skin it produces burns that may be quite serious unless promptly treated. As the voice of the U. However, d7395 is the responsibility of the analyst to verify the solubility of the sample in the solvent and that the diluted sample results conform to the precision x7359 accuracy of the method. Proceed to Checkout Continue Shopping. Weigh the syringe before and after injection into the sample boat to determine the amount of sample injected. 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.
The difference between the two volume readings is the volume of sample asttm. Unless otherwise indicated, it is intended that all reagents shall conform to the speci? We have no amendments or corrections for this standard. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. However, it is the responsibility of the analyst to verify d359 solubility of the sample in the solvent and that the diluted sample results conform to the precision and accuracy of the method.
ASTM D7359-08 Standard Test by Combustion Ion Chromatography-CIC
L or mg of sample. Thermoelectric coolers peltier or recirculating refrigerated liquid devices are strongly recommended. No other units of measurement are included in this standard. Switching sample boats between each analysis may prove effective, provided sample size is not too large.
Manage your subscriptions Newsletters. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. Eyes are particularly vulnerable to severe damage from alkalis. Correction for contaminate levels 7d359 elements of interest must be corrected for solvent blank.
Metrohm: ASTM D7359 – 14a : Total Fluorine, Chlorine and Sulfur in Aromatic Hydrocarbons
The results can be used for compliance determinations when acceptable to a regulatory authority using performance based criteria. Referenced Documents purchase separately The documents listed below are referenced within the subject e7359 but are not provided as part of the standard. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.
Current edition approved Oct. Eyes are particularly vulnerable to severe damage. Multiple sequential injections shall be completed until c7359 stable background is attained.
This procedure can provide greater precision than the volume delivery method, provided a balance with a precision of No other units of measurement are included in this standard.
After any cleaning or adjustment, assemble and leak check the apparatus. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?
The total fluorine, chlorine and sulfur contained in aromatic hydrocarbon matrices can contribute to emissions, be harmful to many catalytic chemical processes, and lead to corrosion. However, it is the responsibility of the analyst to verify the solubility of the sample in the solvent and that the diluted sample results conform to the precision and accuracy of the method.
A high concentration of one anion can interfere with other constituents if their retention times are close enough to affect the resolution of their peak. The concentration of phosphate in the absorbing solutions is used as an internal standard by the Ion Chromatograph. Other systems may be used as long as precision is shown to be as good as or better than the precision in the method.