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Place the receiver, without drying, at x1078 outlet of the condenser tube in such a position that d108 condenser tube extends into the graduate at least 25 mm but does not extend below the mL mark. The fulfillment of these requirements will reduce, but not completely eliminate, the amount of extraneous heat radiating around the perimeter of the asbestos-cement board on which the distillation flask is placed.
The relative volatility of organic liquids can be used with other tests for identification and measurement of quality.
Place a flat cover on the top of the graduate to prevent condensed moisture from entering the graduate. Mercury, or its vapor, may be hazardous to health and corrosive to materials.
Users should be aware that selling mercury or mercury-containing products, or both, in your state may be prohibited by state law. Last previous edition D — If no thermometer is specified, select one from Table 1 with the smallest graduations that will cover the entire distillation range of the material. Astk to Active This link will axtm route to the current Active version of the standard. Your comments will receive careful consideration at a meeting of the responsible technical committee,1 which you may attend.
Do not allow any of the specimen to enter the vapor tube. If no definite manner of reporting is specified, report the corrected temperatures dd1078 each observed volume, and report the volume percentages of residue, recovery, and distillation loss. Record the readings of the distillation thermometer after collecting 5, 10, 20, 30, 40, 50, 60, 70, 80, 90, and 95 mL of distillate.
ASTM D – 11 Standard Test Method for Distillation Range of Volatile Organic Liquids
Historical Version s – view previous versions of standard. We need your help to maintenance this website. Record the difference between and the sum of the residue plus recovery as distillation loss. Specific hazard statements are given in Section 7. 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. Specific 3 D factors conducive to superheating are as follows, and should be avoided: Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
Adjust the position of the heat shield so that the neck of the flask is vertical and the vapor tube extends into the condenser tube a distance of 25 to 50 mm. NOTE 4—For low-boiling materials, cool the apparatus to room temperature before starting the test.
It qstm 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.
Summary of Test Method 4. As a general guide, it is recommended that: Have the bottom of the flask resting firmly in the hole of the heat shield.
HDA 620: Distillation Analyzer
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.
We are a non-profit group that run this website to share documents. For narrow-boiling hydrocarbon materials, the value of K may be assumed as 0. The hole must be perfectly circular, with no irregularities. Both bore corrections and either ice or steam standardization corrections are recommended. If a dry point is not obtained that is, if active decomposition should occur before the dry point is reached, as evidenced by a rapid evolution of vapor or heavy fumes; or if there is liquid remaining on the bottom of the flask when the maximum temperature is observed on the distillation thermometerrecord this fact.
NOTE 2—Toluene is shown in reference manuals as boiling at Other means can be employed, such as the use of a platinum-resistance thermometer or a National Bureau of Standards thermometer.
No other units of measurement are included in this standard. NOTE 1—Liquid superheating in a new flask may be prevented by depositing a small amount of carbon in the bottom of the flask. When active decomposition is encountered, the rapid evolution of vapor and satm fumes is usually followed by a gradual decrease in the distillation temperature. A superscript epsilon e indicates an editorial v1078 since the last revision or reapproval.
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Organic liquids are used as solvents in many chemical processes. Record the temperature at this point as the dry point Section 3.
This standard has been approved for use by agencies of the Department of Defense. 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. Current edition approved June 10, As the relative volatility, residual matter and recovery capability affect atsm efficiency of these processes, this test method is useful in manufacturing control.
Boiling temperatures observed on a partial immersion thermometer are corrected to standard atmospheric pressure to give true boiling temperatures. Another technique is to distill pure toluene Therefore, this test method provides a test procedure for assessing asym with a specification.