ASTM-D7097 2009

$44.96

D7097-09 Standard Test Method for Determination of Moderately High Temperature Piston Deposits by Thermo-Oxidation Engine Oil Simulation Test-TEOST MHT

Published By	Publication Date	Number of Pages
ASTM	2009	14

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Category: ASTM

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Description

ASTM D7097-09

Historical Standard: Standard Test Method for Determination of Moderately High Temperature Piston Deposits by Thermo-Oxidation Engine Oil Simulation Test-TEOST MHT

ASTM D7097

Scope

1.1 This test method covers the procedure to determine the mass of deposit formed on a specially constructed test rod exposed to repetitive passage of 8.5 g of engine oil over the rod in a thin film under oxidative and catalytic conditions at 285°C. The range of applicability of the Moderately High Temperature Thermo-Oxidation Engine Test (TEOST MHT ) test method as derived from an interlaboratory study is approximately 10 to 100 mg. However, experience indicates that deposit values from 1 to 150 mg or greater may be obtained.

1.2 This test method uses a patented instrument, method and patented, numbered, and registered depositor rods traceable to the manufacturer and made specifically for the practice and precision of the test method.

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3.1 The values stated in SI units are to be regarded as standard. Although not an SI unit, the special name, litre (L) is allowed by SI for the cubic decimetre (dm³) and the millilitre (mL) for the SI cubic centimetre (cm³).

1.4 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.

Keywords

deposits; engine oil; oxidation; thermal decomposition; thermal oxidation; Engine (lubricating) oils; Piston deposits; TEOST (thermo-oxidation engine oil simulation test); Thermal decomposition; Thermal oxidation

ICS Code

ICS Number Code 75.100 (Lubricants, industrial oils and related products)

DOI: 10.1520/D7097-09

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	Summary of Test Method Significance and Use Apparatus
3	FIG. 1
4	Reagents and Materials Programming the Apparatus Calibration and Standardization FIG. 2
5	FIG. 3 FIG. 4
6	FIG. 5
7	FIG. 6 FIG. 7
8	Instrument and Sample Preparation Hardware Setup FIG. 8
10	Sample Installation
11	Procedure—Startup Preparation and Disassembly for Weighing
13	Test of Instrument Functionality Calculations Report Precision and Bias TABLE 1
14	Keywords

Additional information

Standard Title	D7097-09 Standard Test Method for Determination of Moderately High Temperature Piston Deposits by Thermo-Oxidation Engine Oil Simulation Test-TEOST MHT
Published Code	ASTM
Publication Date	2009
Pages Count	14