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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This is a temporary precision statement and reproducibility will be determined within? Mr Mrs Ms Dr Prof. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Switching sample boats between each analysis may prove effective, provided sample size is not too d7395.
Once the boat has aztm to the home position, allow a minimum of two minutes for cooling the boat before introducing the next sample.
Need more than one copy? The calibration curve should be at least 0.
Metrohm: ASTM D7359 – 14a : Total Fluorine, Chlorine and Sulfur in Aromatic Hydrocarbons
D3759 halide and sulfate anions are separated into individual elution bands on the separator column of the IC. If required a dilution or concentration of the sample can be performed on the sample.
The instrument must be clean and properly maintained to address potential sources of contamination, or carryover, or both.
Unless otherwise indicated, it is intended that all reagents shall conform to the speci? In CIC the samples are first digested under an argon atmosphere in the oven unit and then burnt with oxygen. Precision and Bias Your Alert Profile lists the documents that will be monitored. Combustion IC Combustion IC combines pyrohydrolytic sample combustion and absorption of the evolving combustion gases in an oxidizing aqueous solution that is then fed into an ion chromatograph for analysis of halides and sulfur as sulfate.
S with a linearity correlation coefficient of 0. The sample may also be weighed directly into a sample boat and placed into the boat drive system. Calibration and Standardization These features may be used as long as they do not degrade the performance and accuracy of the method. This stock standard solution can be further diluted to other desired concentrations. Use materials that are rated for containing these hydrocarbons in all sample containers and sample transfer apparatus.
L of sample into the sample boat. Retention times atsm with operating conditions.
Manage your subscriptions Newsletters. The inlet end shall allow for the stepwise introduction and advancement of a sample boat into the heated zone and shall have a side arm for the introduction of the humidi?
Correction for contaminate levels of elements of interest must wstm corrected for solvent blank. Proceed to Checkout Continue Shopping.
Metrohm Australia – Metrohm New Zealand. A number in parentheses indicates the year of last reapproval.
This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? There the sample is combusted in zstm oxygen rich pyrohydrolytic environment.
It is the responsibility of the user of this standard awtm establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Standards Subsctiption may be the perfect solution.
ASTM D – 14a : Total Fluorine, Chlorine and Sulfur in Aromatic Hydrocarbons
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. D — 08 Standard Test Method for This standard is issued under the? Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
Other suitable materials, weights and volumes may be substituted in preparing stock calibration standards as long as the performance of the method is not degraded. NOTE 12—Samples larger than 80? 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.
The combined system of pyrohydrolytic combustion followed by 3 Available from U. 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.
ASTM D7359-08 Standard Test by Combustion Ion Chromatography-CIC
The Gas Adsorption Unit is interfaced to the Ion Chromatograph and injects an aliquot of the adsorption solution into the Ion Chromatograph after the sample is combusted and the by-products of combustion are absorbed. Exercise extra care when using? The standards, therefore, must be analyzed by the ion chromatograph in the same astj as the sample solutions. NOTE 4—Calibration standards are typically re-mixed and re-certi?
Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. NOTE 10—The level of boat cooling required is directly related to the volatility of the sample analyzed.