ASTM D Standard Test Method for Coulometric and Volumetric Determination of Moisture in Plastics Using the Karl Fischer Reaction (the Reaction of. ASTM D – 03() standard test method for coulometric and volumetric determination of moisture in plastics using the karl fischer reaction (the reaction of. ASTM D Standard Test Method for Coulometric and Volumetric Determination of Moisture in Plastics Using the Karl Fischer Reaction.
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The following table lists recommended sample weights for various moisture ranges: This is how compEAct works — a sulfur and nitrogen analyzer from Analytik Jena developed for the petrochemical industry.
Customer comments No comments were found for ASTM D – 03 standard test method for coulometric and volumetric determination of moisture in plastics using the karl fischer reaction the reaction of iodine with water. A temperature value too high can degrade the polymer and actually generate water in some cases. Moisture will affect the processability of some plastics.
Sample size shall be adjusted to obtain an accurate moisture measurement. Originally approved in Permission rights to photocopy the standard may also be secured from the ASTM website www.
Selection of Optimum Heating Temperature is discussed below. What is permanganate index?
Moisture Content by Karl Fischer
Also, hygroscopic materials like nylon absorb moisture and knowledge of the water content can be important in understanding performance. The volume of reagent that is added during the titration is measured and used to calculate the amount of moisture in the sample.
Be the first to comment! Hygroscopic resin samples shall be protected from the atmosphere. Last previous edition approved in as D – Calculation or Interpretation of Results Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.
Removal of the previous sample will provide more accurate results. This eliminated the odor problem associated with pyridine. Move the sample boat into the oven and begin analysis. NOTE 3—The condition of both anode and cathode solutions are determined by the appearance of the?
This is probably caused by the generation of water due to thermal decomposition or solid phase polymerization of the sample. High moisture content causes surface imperfections that is, splay or bubbling or degradation by hydrolysis. To request a quote for this test or others Click Here. The solutions must be light amber in color. The directive relates to the quality of water intended for human consumption, ensuring it is safe and clean. A volumetric burette adds iodinecontaining reagent to the titration cell until no more current is generated.
If the temperature is too low or the retention time too short all of the water might not be driven off. It is recommended that molded specimens be cut into smaller parts prior to testing recommended maximum size 4 by 4 by 3 mm 9.
This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? It involves the determination of oxidizability, also known as oxygen O2 demand, by potassium permanganate ISO method The new analyzer offers an updated modular design that eases routine maintenance and features measurement ranges from 2ppm to percent and limits of detection ASTM D – 03 standard test method for coulometric and volumetric determination of moisture in plastics using the karl fischer reaction the reaction of iodine with water 0.
NOTE 4—Another permissible method, which uses a micro syringe, is described in section 4.
The new Thermo Scientific SOLA iQ online sulfur analyzer helps technicians, engineers and managers in the oil and gas industry measure total sulfur content of liquid or gas phase samples without requiring time-consuming lab analysis. Molecular sieve or suitable desiccant must be used in the drying tubes for the nitrogen carrier gas.
Moisture Content by Karl Fischer ASTM D
Sample weight to be used asrm dependent on the amount of moisture expected in the sample. It is permitted to use aluminum foil as a disposable liner for the sample pan. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory ashm prior to use. Spectro Scientific has introduced an upgrade to its FieldLab 58 consisting of a more powerful X-ray fluorescence XRF module and newly designed filter that significantly improve the limits of detection for wear metal elements in oil.
Since completing multiple co-op Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
It was not widely used because of the objectionable odor of pyridine. One to three grams. L satm neutralization solution or check solution.
This apparatus has the capability to generate or deliver iodine to react stoiciometrically with the moisture present in the titration cell. Astk moisture with high temperature causes polymerization. Calibration and Standardization The water in the sample is vaporized and carried by dry oxygen free nitrogen into a reaction vessel with methanol. Knowledge of the moisture content can be important since some polymers degrade when molded wet resulting in reduced properties.
Moisture Content by Karl Fischer.