ASTM-D7098 2005

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D7098-05 Standard Test Method for Oxidation Stability of Lubricants by Thin-Film Oxygen Uptake (TFOUT) Catalyst B

Published By	Publication Date	Number of Pages
ASTM	2005	9

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Description

1.1 This test method covers the oxidation stability of lubricants by thin-film oxygen uptake (TFOUT) Catalyst B. This test method was originally developed as a screening test to indicate whether a given re-refined base stock could be formulated for use as automotive engine oil particularly in relationship with Engine Test Sequence IIID (Test Method D 4742). More recently, another catalyst has been developed using engine oils characterized by oxidation resistance in Engine Test Sequence IIIE. In addition, the test method has since been found broadly applicable as an oxidation test of petroleum products.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are provided for information purposes only.

1.3 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.

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PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Summary of Test Method
2	Significance and Use Apparatus Reagents Materials FIG. 1
3	Preparation of Apparatus Procedure
4	Report Precision and Bias Keywords A1. THIN FILM OXYGEN UPTAKE TEST USING THE RBOT/TFOUT APPARATUS A1.1 Pressure Vessel A1.2 Pressure Vessel Assembly and Charging
5	A1.3 Oxidation A1.4 Aluminum Insert A1.5 Glass Sample Container FIG. A1.1 FIG. A1.2 FIG. A1.3
6	A1.6 Gage A1.7 Oxidation Bath A1.8 Thermometer A2. THIN FILM OXYGEN UPTAKE TEST USING THE DESIGNED TFOUT APPARATUS A2.1 Pressure Oxidation Vessel A2.2 Oxidation Chamber A2.3 Drive Tube A2.4 Impeller/Lock Ring FIG. A1.4 FIG. A2.1
7	A2.5 O-ring Gaskets A2.6 Glass Reaction Dish A2.7 Pressure Vessel Assembly and Charging A2.8 Oxidation A2.9 Oxidation Bath A2.10 A2.11 Recorder A2.12 Thermometer FIG. A2.2 FIG. A2.3 FIG. A2.4
8	A3. PREPARATION OF THE FUEL COMPONENT A3.1 A3.2 A3.3 Distillation A3.4 Oxidation/Nitration A3.5 Reduction of Acidity A3.6 A3.7 A4. PREPARATION OF THE SOLUBLE METAL CATALYST MIXTURE A4.1 A4.2 Materials A4.3 Metal Content A4.4 Mixing of Metal Naphthenates FIG. A3.1
9	A4.5 Composition of the Metals A4.6 A5. CLEANING PROCEDURE FOR CATALYST SYRINGES A5.1 A5.2 Materials A5.3 A5.4 A5.5

Additional information

Standard Title	D7098-05 Standard Test Method for Oxidation Stability of Lubricants by Thin-Film Oxygen Uptake (TFOUT) Catalyst B
Published Code	ASTM
Publication Date	2005
Pages Count	9

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ASTM-D7098 2005

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