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 instrument must be clean and properly maintained to address potential sources of contamination, or carryover, or both.
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.
Eyes are particularly vulnerable to severe damage. An aliquot of known volume of the adsorbing solution is then automatically injected into an ion chromatograph IC by means of a sample injection valve. You can download and open this file to ashm own computer but DRM prevents opening this file on another computer, including a networked server.
The autosampler may be used as long as the accuracy and performance of the method is not degraded. 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.
Post Analysis Steps 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. NOTE 3—Other calibration standard sources and diluents may be used if precision and accuracy are not degraded.
Dilute to volume with the selected solvent described in 7. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above atm or at phonefaxor service astm. No other units of measurement are v7359 in this standard. L of standard or sample. 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? Run a check standard to determine if the instrument needs to be recalibrated.
NOTE 12—Samples larger than 80? Subscription pricing is determined by: L or mg of sample.
ASTM D – 14a : Total Fluorine, Chlorine and Sulfur in Aromatic Hydrocarbons
Reagents and Materials 7. ASTM D – Metrohm presents 19 new CIC applications: Link to Active This link will always route to the current Active version of the standard. Calculate the actual concentration of the stock standard solution s for each element by asmt the equation below with the actual recorded weight of the target compound used for each element. The concentrations in the test specimen must be less than the concentration of the highest standard and greater than the lowest ast, used in the calibration.
ASTM D7359-08 Standard Test by Combustion Ion Chromatography-CIC
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The use of a thermoelectrically cooled sample introduction area may be required to prevent premature volatilization of the sample before entering the combustion area. The difference between the two volume readings is the volume of sample injected.
Decrease the boat drive asrm rate or hold times in the furnace, or both, if coke or soot is observed on the exit end of the combustion tube. The results can be used for compliance determinations when acceptable to a regulatory authority using performance based criteria.
We have no amendments or corrections for this standard.
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. Current edition approved Oct. The combined system astn pyrohydrolytic combustion followed by 3 Available from U.
This procedure can provide greater precision than the volume delivery method, provided a balance with a precision of A typical diagram of a CIC system is shown in Fig. Proceed to Checkout Continue Shopping. You may delete a document from your Alert Profile at any time.