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ASTM Dpdf – Download as PDF File .pdf), Text File .txt) or read online. – Download as PDF File .pdf), Text File .txt) or read online. ASTM Dpdf. November 29, | Author: Nok Chan | Category: Distillation, Thermometer, Electric Heating, Liquids, Temperature.

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D — 01 Designation: Therefore, this test method provides a test procedure for assessing compliance with a specification. The superheating effect obtained from electric heaters may be minimized, but not completely eliminated, by selecting a heater that, by its design, concentrates the heating elements to a minimum area, and contains a minimum amount of ceramic material in its overall construction.

NOTE 1—Liquid superheating in a new flask may be prevented by depositing a small amount of carbon in the bottom of the flask.

Originally published as D — 49 T. When active decomposition is encountered, the rapid evolution of vapor and heavy fumes is usually followed by a gradual decrease in the distillation temperature.

Summary of Test Method 4. Record the readings of the distillation thermometer after collecting 5, 10, 20, 30, 40, 50, 60, 70, 80, 90, and 95 mL of distillate.

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.

We need your help! The observed bias if any are only for the samples studied and may not be necessarily applicable to other samples. For low-boiling materials, cool the heating unit to room temperature before starting the test. If yields are not obtained within these limits, repeat the test. NOTE 6—For viscous liquids, a longer drainage period may be necessary to complete the transfer of the specimen to the flask, but the drainage time should not exceed 5 min.

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Caution should be taken when handling mercury and mercury-containing products. The study involved six samples of different boiling point ranges, done in duplicate.

Table 6 gives xstm summary of the relative bias observed for the samples used in the study. For narrow-boiling hydrocarbon materials, the value of K may be assumed as 0. We need your help to maintenance this website. Specific 3 D factors conducive to superheating are as follows, and should be avoided: These should be used only after they have been proven to give results comparable to those obtained when using gas heat. This can be accomplished potentiometrically by the use of standard precision resistance, depending on the type of probe.

Historical Version s – view previous versions of standard.

Please fill this form, we will try to respond as soon as possible. Center the thermometer into the neck of the flask through a tight-fitting cork stopper so that the upper end of the contraction chamber or bulb if Thermometer 2C or IP thermometer 62C is used is level with the lower side of the vapor tube at its junction with the neck of the flask.

When peroxide formation is likely because of chemical type or length of storage, the material should be analyzed for peroxides See Test Method E In the operation of the distillation apparatus, use a suitable catch pan and shielding to contain spilled liquid in the event of accidental breakage of the distillation flask.

Significance and Use 5. Record the difference between and the sum of the residue plus recovery as distillation loss. If an agreement on which method to designate cannot be made, the referee test method will be the manual method.

ASTM D – 11 Standard Test Method for Distillation Range of Volatile Organic Liquids

We are a non-profit group that run this website to share documents. The flask is then prepared for use by washing with water, rinsing with acetone, and drying.

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Users should be aware that selling mercury or mercury-containing products, or both, in your state may be prohibited by state law.

These peroxides may present a violent explosion hazard when the chemical d10078 distilled, especially as the dry point is approached.

Place a flat cover on the top of the graduate to prevent condensed moisture from entering the graduate.

HDA 620: Distillation Analyzer

As a atsm guide, it is recommended that: Measure the volume and record it as residue. NOTE 2—Toluene is shown in reference manuals as boiling at Confirmation of the calibration of these temperature sensors shall be done at regular intervals. Have the bottom of the flask resting firmly in the hole of the heat shield. Organic liquids are used as solvents in many chemical processes.

The temperature of the mercury in the thermometer is equilibrated with that of the refluxing liquid before the distillate is taken over. Record the temperature at this point as the dry point Section 3. Specific hazard statements are given in Section 7.

As the relative volatility, residual matter and recovery capability affect axtm efficiency of these processes, this test method is useful in manufacturing control. The hole must be perfectly circular, with no irregularities.

This standard has been approved for use by agencies of the Department of Defense. The relative volatility of organic liquids can be used with other tests for identification and measurement of quality. 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.