ASTM D7359 PDF

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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We have no amendments or corrections for this standard. Metrohm Australia – Metrohm New Zealand. L of standard or sample.

Weigh the syringe before and after injection into the sample boat to determine the amount of sample injected. Thermoelectric coolers peltier or recirculating refrigerated liquid devices are strongly recommended. Multiple sequential injections shall be completed until a stable background is attained.

ASTM D – 14a : Total Fluorine, Chlorine and Sulfur in Aromatic Hydrocarbons

This standard is not included in any packages. If you feel that your comments have not received a fair hearing you should make your views asstm to the ASTM Committee on Standards, at the address shown below. Its action is insidious since it produces no immediate stinging or burning sensation and damage to the skin may result before its presence is realized.

This standard is also available to be included in Standards Subscriptions. NOTE 12—Samples larger than 80? Summary of Test Method 3.

ASTM D7359-08 Standard Test by Combustion Ion Chromatography-CIC

Link to Active This link will always route to the current Active version of the standard. L or mg of sample. If the document is revised or amended, you will be notified by email.

Switching sample boats between each analysis may prove effective, provided ast, size is not too large.

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Correction for contaminate levels of elements of interest must be corrected for solvent blank. NOTE 4—Calibration standards are typically re-mixed and re-certi?

Mr Mrs Ms Dr Prof. The gaseous by-products of the combusted sample are trapped in an absorption medium where the hydrogen halides HX formed during combustion disassociate into their respective ions, Xwhile the sulfur oxides SOX formed are further oxidized to SO in the presence of an oxidizing agent.

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NOTE 6—It is recommended to calibrate the instrument with a minimum of three different concentration standards. This test method can be used to determine total sulfur and halogens in aromatic hydrocarbons and their mixtures. NOTE 8—An automatic sampling and injection device or autosampler can be used in place of the described manual injection procedure as long as the accuracy and performance of the method is not degraded.

Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. The combined system of pyrohydrolytic combustion followed by 3 Available from U. In the Absorber Module, the resulting gaseous compounds are passed into an absorption solution, which is then transferred inline to a Metrohm ion chromatography system, where it is analysed.

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Metrohm: ASTM D7359 – 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. Add to Alert PDF. The autosampler may be asmt as long as the accuracy and performance of the method is not degraded. 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. Dilute to volume with the selected solvent described in 7.

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NOTE 11—A typical calibration would include a series of three to four standards containing the elements of interest and bracketing the concentrations that are in the samples. The concentration of phosphate in the absorbing solutions is used as an internal standard by the Ion Chromatograph.

The results can be used for compliance determinations when acceptable to a regulatory authority using performance based criteria. Exercise extra care when using? 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 awtm method. NOTE 3—Other calibration standard sources and diluents may be used if precision and accuracy are not degraded.

Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. You can download and open this file to your own axtm but DRM prevents opening this file on another computer, including a networked server.

This stock standard solution can be further diluted to other desired concentrations. Work Item s – proposed revisions of this standard. Post Analysis Steps