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.
|Published (Last):||5 January 2014|
|PDF File Size:||4.12 Mb|
|ePub File Size:||4.51 Mb|
|Price:||Free* [*Free Regsitration Required]|
It is the responsibility of the user of e1078 standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. IBP 50 75 r 0. We need your help!
ASTM D – 11 Standard Test Method for Distillation Range of Volatile Organic Liquids
D — 01 Designation: If no thermometer is specified, select one asttm Table 1 with the smallest graduations that will cover the entire distillation range of the material. As a general guide, it is recommended that: The relative volatility of organic liquids can be used with other tests for identification and measurement of quality. As the relative volatility, residual matter and recovery capability affect the efficiency of these processes, this test method is useful in manufacturing control.
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.
The flask is then prepared for use by washing with water, rinsing with acetone, and drying. A small but statistically significant bias was indicated for the automatic and d10788 D dry point DP. A These thermometers have more temperature lag than the other thermometers listed herein and are not satisfactory for use with narrow-boiling range liquids.
The temperature of the mercury in the thermometer is equilibrated with that of the refluxing liquid before the distillate is taken over. Please help us to share our service with your friends.
We are a non-profit group that run this website to share documents. Current edition approved June 10, D10078 not allow any of the specimen to enter the vapor tube. See Section 9 for factors that cause superheating, and Appendix X1 for a discussion on the use of electric heaters.
A number in parentheses indicates the year of last reapproval. Organic liquids are used as solvents in many chemical processes. 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.
Record the temperature at this point as the dry point Section 3. Specific 3 D factors conducive to superheating are as follows, and should be avoided: Your comments will receive careful consideration at a meeting of the responsible technical committee,1 which you may attend. 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. This standard has been approved for use by agencies of the Department of Defense.
When active decomposition is encountered, the rapid evolution of vapor and heavy fumes is usually followed by a gradual decrease in the distillation temperature. Transfer the fresh specimen directly to the flask, allowing the receiver to drain for 15 to 20 s see Note 6. This test method provides a method of measurement of distillation range of volatile organic liquids.
Table 6 gives a 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.
PAC-ASTM DHDA Distillation Analyzer
It was found that the precision is dependent on the boiling point temperature. Have the bottom of the flask resting firmly in the hole of the heat shield.
Link to Active This link d10078 always route to the current Active version of the standard. Place a flat cover on the top of the graduate to prevent condensed moisture from entering the graduate. Organic liquids are used as solvents in many chemical processes. Ten laboratories did automatic D distillation, and five laboratories did manual D distillation.