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Standard Test Method for Sediment in Crude Oils and Fuel Oils by the Extraction Method1 This standard is issued under the fixed designation D ; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision.
A number in parentheses indicates the year of last reapproval. A superscript epsilon indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense.
The Chapter 8. Chapter 8. The values given in parentheses are for information 2. It is the 3. Summary of Test Method responsibility of the user of this standard to establish appro- 3. For specific residue reaches constant mass. The mass of residue, calculated warning statements, see 5. Referenced Documents 4. Significance and Use 2. Current edition approved May 1, Published June Originally approved in Last previous edition approved in as D The coil shall be made from stainless steel, tin, been used successfully in the industry.
The cup shall be made of glass, have a minimum thickness of 0. The exposed surface conical in shape, approximately 20 mm in diameter and 25 mm of the coil for cooling purposes is about cm2. In this rate drops below a pre-set limit has been found suitable to prevent procedure, suspend the thimble basket as shown in Fig.
The use of such a device is recom- mended. Apparatus A by means of the corrosion-resistant wire looped over the bottom of the condenser coil and attached to the basket 5.
Suspend the thimble from the condenser coil by means of a 5. Verify the balance, at least annually, 5 The sole source of supply of the extraction thimble, AN , 25 3 mm, against weights traceable to a national standards body such as coarse porosity, drawing number QA , known to the committee at this time the National Institute of Standards and Technology NIST.
If you 5. Your comments will receive careful consideration at a ing the verification of mixing efficiency requirements specified meeting of the responsible technical committee,1 which you may attend. Either insertion mixers.
Keep away from heat, sparks and Chapter 8. Vapor harmful. Toluene is toxic. Particular care 5. Keep the container closed. Use with adequate ventilation.
For suggestions on the testing of reagents not 6. Pharmacopeial Convention, Inc. Repeat the extraction until the Substances darkened by H2SO4 passes test masses of the thimble after two successive extractions do not Sulfur compounds as S 0. Water H2O by Karl Fischer titration 0.
Subject shown in Table 1. Sampling 8. Do not aliquot of the contents of any pipe, tank, or other system and to attempt to adjust this estimated g portion to any exact place the sample into the laboratory test container.
Weigh the thimble plus test portion to 7. Place the thimble in the extraction apparatus, place on the 8. Heat viscous samples to a Ensure that the rate of extraction is such that the surface of the temperature which renders the sample liquid, and homogenize mixture of oil and toluene in the thimble does not rise higher using a mixer as described in 5.
The difficulties than to within 20 mm of the top. In this procedure, remove any water in the 7. Mix the water cup, where it separates as a bottom layer. The toluene laboratory sample in its original container, using the mixing layer overflows into the thimble. If the cup becomes full of time, mixing power speed , and position relative to the bottom water, allow the apparatus to cool and empty the cup.
To avoid the loss of light ends from crude oil or cooling vessel, for 1 h; and weigh to the nearest 0. Take the the thimble for at least 1 h but not longer than 1.
Record the and weigh the thimble as described in 8. Repeat this temperature of the sample immediately after mixing. If the rise extraction for further 1-h periods, if necessary, until the masses in temperature during mixing exceeds 10C 20F , cool the of the dried thimble plus sediment after two successive sample, and repeat the mixing at a lower energy input. A rise in extractions do not differ by more than 0.
Calculation 9. Procedure percentage by mass of the original sample. For routine tests, thimbles S 5 m 2 m 3 1 2 1 may be reused. When reusing thimbles, the extraction to constant mass for one determination should be considered as where: the preliminary extraction for the succeeding determination.
When in doubt Report regarding a higher than normal result, discard the thimble and Give the thimble a preliminary extraction with the Practice E 29 rounding conventions. For each sample with a. As a major portion of the sediment probably would be only one case in twenty: sand silicon dioxide, which has a density of 2.
Report the temperature of the R 5 0. Precision and Bias because the value of sediment can be defined only in terms of Keywords in Subcommittee D ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.
This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years and if not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phone , fax , or service astm. Learn more about Scribd Membership Home.
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Standard Test Method for Sediment in Crude Oils and Fuel Oils by the Extraction Method
Standard Test Method for Sediment in Crude Oils and Fuel Oils by the Extraction Method1 This standard is issued under the fixed designation D ; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense.
ASTM D473 实验室原油沉淀物测量仪器
Your mail: Our mail: sales dgaequipment. Validate: Change Image. Apparatus 5. The coil shall be made from stainless steel, tin, tin-plated copper, or tin-plated brass tubing having an outside diameter of 5 to 8 mm and a wall thickness of 1.
ASTM D 473 Sediment-by-extraction.pdf