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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If no definite manner of reporting is specified, report the corrected temperatures at each observed volume, and report the volume percentages of residue, recovery, and distillation loss. 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.
Boiling temperatures observed on a partial immersion thermometer are corrected to standard atmospheric pressure to give true boiling temperatures. No other units of measurement are included in this standard. Zstm help us to share our service with your friends. Specific hazard statements are given in Section 7. Your comments will receive careful consideration at a meeting of the responsible technical committee,1 which awtm may attend.
Historical Version s – view previous versions of standard. See Section 9 for factors that cause superheating, and Appendix X1 for a discussion on the use of electric heaters. Do not allow any of the specimen to enter the vapor tube.
HDA 620: Distillation Analyzer
Remove the flask from the apparatus and transfer the fresh specimen directly to the flask, allowing the graduate to drain for 15 to 20 s. D — 01 Designation: We are a non-profit group that run this website to share documents. Ten laboratories did automatic D distillation, and five qstm did manual D distillation.
This standard has been approved for use by agencies of the Department of Defense. We need your help! IBP 50 75 r 0. Please fill this form, we will try to respond as soon as possible. Significance and Use 5. The observed bias if any are only for the samples studied and may not be necessarily applicable to other samples. These peroxides may present a violent explosion hazard when the chemical is distilled, especially as the dry point is approached.
Thank you for interesting in our services. Record the temperature at this point as the dry point Section 3. Please copy and paste this embed script to where you want to embed Embed Script. 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. Mercury, or its vapor, may be hazardous to health and corrosive to materials.
Place the receiver, without drying, astk the outlet of the condenser tube in such a position that the condenser tube extends into the graduate at least 25 mm but does not extend below the mL mark. This can be accomplished potentiometrically by the use of standard precision resistance, depending on the type of probe. Compound 6 The sstm source of supply of the Lo-Cap heater known to the committee at this time is Precision Scientific Co.
Transfer the fresh specimen directly to the flask, allowing the receiver to drain for 15 to 20 s see Note 6. Have the bottom of the flask resting firmly in the hole of the heat shield. Summary of Test Method 4. This may be accomplished by heating and decomposing a pinch of tartaric acid in the bottom of the flask. NOTE 4—For low-boiling materials, cool the apparatus to room temperature before starting the test.
Precision and Bias As the relative volatility, residual matter and recovery capability affect the efficiency of these processes, this test method is useful in manufacturing control.
Confirmation of the calibration of these temperature sensors shall be done at regular intervals. The study involved six samples of different boiling point ranges, done in duplicate. Current edition approved June 10, It was found that the precision is dependent on the boiling point temperature.
Keywords NOTE 8—In cases of dispute, the parties involved may agree to designate either the manual or the automatic method to be the referee test method. 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 1d078 not provided as part of the standard.
ASTM D – 05 Standard Test Method for Distillation Range of Volatile Organic Liquids
It is the responsibility of the user of this standard to establish d1087 safety and health s1078 and determine the applicability of regulatory limitations prior to use. The flask is then prepared for use by washing with water, rinsing with acetone, and drying.
Preparation of Apparatus 8. We need your help to maintenance this website. A number in parentheses indicates the year of last reapproval. Originally published as D — 49 T. As a general guide, it is recommended that: A These thermometers have more temperature lag than the other thermometers listed herein and are not satisfactory for use with narrow-boiling range liquids.