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ASTM D3235-06

(Test Method)

Standard Test Method for Solvent Extractables in Petroleum Waxes

Standard Test Method for Solvent Extractables in Petroleum Waxes

SIGNIFICANCE AND USE
The solvent extractables in a wax may have significant effects on several of its properties such as strength, hardness, flexibility, scuff resistance, coefficient of friction, coefficient of expansion, melting point, and staining characteristics. Whether these effects are desirable or undesirable depends on the intended use of the wax.
SCOPE
1.1 This test method covers the determination of solvent extractables in petroleum waxes.
1.2 The values given in parentheses are for information only.
This standard does not purport to address all of the safety concerns, if any, associated with its use. 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.
1.3 This test method covers the determination of the acceptability of porous filter sticks used for filtration in Test Method D 3235. This method establishes the maximum pore diameter and also provides a means of detecting and measuring changes which occur from continued use.

General Information

Status
Historical
Publication Date
31-Oct-2006
ICS
75.140 - Waxes, bituminous materials and other petroleum products
Technical Committee
D02 - Petroleum Products, Liquid Fuels, and Lubricants
Drafting Committee
D02.10.0A - Physical/Chemical Properties
Current Stage
Ref Project

Relations

Replaces
ASTM D3235-05 - Standard Test Method for Solvent Extractables in Petroleum Waxes
Effective Date
01-Nov-2006
Replaced By
ASTM D3235-06(2011) - Standard Test Method for Solvent Extractables in Petroleum Waxes
Effective Date
01-Oct-2011

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ASTM D3235-06 - Standard Test Method for Solvent Extractables in Petroleum WaxesASTM D3235-06 - Standard Test Method for Solvent Extractables in Petroleum Waxes
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ASTM D3235-06 - Standard Test Method for Solvent Extractables in Petroleum Waxes
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D3235–06
Standard Test Method for
1
Solvent Extractables in Petroleum Waxes
This standard is issued under the fixed designation D3235; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 5. Apparatus
1.1 This test method covers the determination of solvent 5.1 Filter Stick and Assembly, consisting of a 10-mm
extractables in petroleum waxes. diameter sintered glass filter stick of 10 to 15 µm maximum
1.2 The values stated in SI units are to be regarded as pore diameter as determined by the method in Appendix X1,
standard. The values given in parentheses are for information provided with an air pressure inlet tube and delivery nozzle. It
only. isprovidedwithaground-glassjointtofita25by170-mmtest
1.3 This standard does not purport to address all of the tube. The dimensions for a suitable filtration assembly are
safety concerns, if any, associated with its use. It is the shown in Fig. 1.
responsibility of the user of this standard to establish appro-
NOTE 1—A metallic filter stick may be employed if desired. A filter
priate safety and health practices and determine the applica-
3
stick made of stainless steel and having a 12.7-mm (0.50-in.) disk of 10
bility of regulatory limitations prior to use.
to 15 nm maximum pore diameter, as determined by Test Method E128,
has been found to be satisfactory. The metallic apparatus is inserted into
2. Referenced Documents
a 25 by 150-mm test tube and held in place by means of a cork.
2
2.1 ASTM Standards:
5.2 Cooling Bath, consisting of an insulated box with 30 6
E1 Specification for ASTM Liquid-in-Glass Thermometers
5-mm (1.2 6 0.2-in.) holes in the center to accommodate any
E128 Test Method for Maximum Pore Diameter and Per-
desired number of test tubes. The bath may be filled with a
meability of Rigid Porous Filters for Laboratory Use
suitable medium such as kerosine, and may be cooled by
circulatingarefrigerantthroughcoils,orbyusingsolidcarbon
3. Summary of Test Method
dioxide. A suitable cooling bath to accommodate three test
3.1 The sample is dissolved in a mixture consisting of 50
tubes is shown in Fig. 2.
volume% methyl ethyl ketone and 50 volume% toluene. The
5.3 Dropper Pipet, dispensing device capable of delivering
solution is cooled to −32°C (−25°F) to precipitate the wax,
0.5 6 0.05 g of molten wax.
thenfiltered.Thesolventextractablescontentisdeterminedby
5.4 Transfer Pipet, or equivalent volume dispensing device,
evaporating the solvent from the filtrate and weighing the
capable of delivering 15 6 0.06 mL.
residue.
5.5 Air Pressure Regulator, designed to supply air to the
filtration assembly (8.5) at sufficient pressure to give an even
4. Significance and Use
flow of filtrate. Either a conventional pressure-reducing valve
4.1 The solvent extractables in a wax may have significant
or a mercury bubbler-type regulator has been found satisfac-
effects on several of its properties such as strength, hardness,
tory.The latter type, illustrated in Fig. 3, consists of a 250-mL
flexibility,scuffresistance,coefficientoffriction,coefficientof
glass cylinder and a T-tube held in the cylinder by means of a
expansion,meltingpoint,andstainingcharacteristics.Whether
rubber stopper grooved at the sides to permit the escape of
these effects are desirable or undesirable depends on the
excess air. The volume and pressure of the air supplied to the
intended use of the wax.
filtrationassemblyisregulatedbythedepthtowhichtheT-tube
is immersed in mercury at the bottom of the cylinder. Absor-
1
bentcottonplacedinthespaceabovethemercurypreventsthe
This test method is under the jurisdiction of ASTM Committee D02 on
PetroleumProductsandLubricantsandisthedirectresponsibilityofSubcommittee
D02.10.0A on Physical/Chemical Properties.
3
Current edition approved Nov. 1, 2006. Published November 2006. Originally The sole source of supply of a suitable metal filter stick with designated
approved in 1973. Last previous edition approved in 2005 as D3235–05. DOI: porosity G known to the committee at this time is the Pall Trinity Micro Corp.,
10.1520/D3235-06. Route281,Cortland,NY13045.AlistofUnitedKingdomsupplierscanbeobtained
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or from Energy Institute, 61 New Cavendish St., London, W1G7AR, United King-
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM dom. If you are aware of alternative suppliers, please provide this information to
Standards volume information, refer to the standard’s Document Summary page on ASTM International Headquarters. Your comments will receive careful consider-
1
the ASTM
...

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