ASTM D6869 PDF

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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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.

Halogenated alcohols especially tri? Keep the carrier gas? Calculation or Interpretation of Results The temperature is set so that the analysis is completed in a short time period, yet eliminating the generation of water from thermal degradation of the sample.

ASTM D – MOISTURE CONTENT BY KARL FISCHER

Prepare the instrument as detailed in Section It is the qstm of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Water content in percent or parts per million is determined. The new analyzer offers an updated modular design that eases routine maintenance and features measurement ranges from 2ppm to astk and limits of detection It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the d689 of regulatory limitations prior to use.

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Take care not to get excess moisture on the outside surface of the capillary. Removal of the previous sample will provide more accurate results. Preparation of Apparatus Low moisture with high temperature causes polymerization.

Molecular sieve or suitable desiccant must be used in d68699 drying tubes for the nitrogen carrier gas. The moisture collected in the solution within the titration cell is determined using the reaction of water with I2.

Stir the solution for a minute in the Titration Mode to dry and stabilize the inner atmosphere. High moisture content causes surface imperfections that is, splay or bubbling or degradation by hydrolysis.

If the temperature is too low or the retention time too short all of the water might not be driven off. Their electrode detects the current generated during the titration. This eliminated the odor problem associated with pyridine.

To request a quote for this test or others Click Here. Originally approved in Hygroscopic resin samples shall be protected from the atmosphere. The permanganate index is an assessment of water quality typically used axtm freshwater and treated drinking waters.

Sample size shall be adjusted to obtain an s6869 moisture measurement. Industrial customers who have already been able to test the device are enthusiastic and are already now demonstrably saving time and analysis costs.

The percent moisture in the sample is then calculated based on the sample weight used and is given as a direct digital readout. This is probably caused by the generation of water due to thermal decomposition or solid phase polymerization of the astn.

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The instrument is now ready for sample analysis.

Moisture Content by Karl Fischer ASTM D

Be the aetm to comment! L of neutralization solution or check solution. One to three grams. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?

Moisture Content by Karl Fischer

Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Due to copyright restrictions, we are not able to provide copies of standards. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. What is permanganate index? Sampling, Test Specimens, and Test Units 9.

NOTE 3—The condition of both anode and cathode solutions are determined by the appearance sstm the? NOTE 4—Another permissible method, which uses a micro syringe, is described in section 4. High moisture content causes surface imperfections that is, splay or bubbling or degradation by hydrolysis. Knowledge of the moisture content can be important since some polymers degrade when molded wet resulting in reduced properties.

Heat the boat in the oven for 2 min, and then allow the boat to cool for 2 min prior to the introduction of samples. The following table lists recommended r6869 weights for various moisture ranges: