ASTM-D7647 2010

$40.63

D7647-10 Standard Test Method for Automatic Particle Counting of Lubricating and Hydraulic Fluids Using Dilution Techniques to Eliminate the Contribution of Water and Interfering Soft Particles by Light Extinction

Published By	Publication Date	Number of Pages
ASTM	2010	9

Guaranteed Safe Checkout

Category: ASTM

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

Description

ASTM D7647-10

Historical Standard: Standard Test Method for Automatic Particle Counting of Lubricating and Hydraulic Fluids Using Dilution Techniques to Eliminate the Contribution of Water and Interfering Soft Particles by Light Extinction

ASTM D7647

Scope

1.1 This test method covers the determination of particle concentration and particle size distribution in new and in-service oils used for lubrication and hydraulic purposes.

1.2 Particles considered are in the range from 4 µm _(c) to 200 µm _(c) with the upper limit being dependent on the specific automatic particle counter being used.

Note 1—For the purpose of this test method, water droplets not masked by the diluent procedure are detected as particles, and agglomerated particles are detected and reported as a single larger particle.

Note 2—The subscript _(c) is used to denote that the apparatus has been calibrated in accordance with ISO 11171. This subscript _(c) strictly only applies to particles up to 50 µm.

1.3 Lubricants that can be analyzed by this test method are categorized as petroleum products or synthetic based products, such as: polyalpha olefin, polyalkylene glycol, or phosphate ester. Applicable viscosity range is up to 1000 mm²/s @ 40°C. This procedure may be appropriate for other petroleum and synthetic based lubricants not included in the precision statement.

1.4 Samples containing visible particles may not be suitable for analysis using this test method.

1.5 Samples that are opaque after dilution are not suitable for analysis using this test method.

1.6 The test method is specific to automatic particle counters that use the light extinction principle and are calibrated according to the latest revision of ISO 11171.

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

1.8 This test method 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

automatic particle counter; diluent; emulsified water; particle contamination; particle counting; soft particles; water-masking

ICS Code

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

DOI: 10.1520/D7647-10

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	Summary of Test Method Significance and Use Interferences
3	Apparatus Reagents and Materials
4	Sample Collection and Handling Calibration and Verification Preparation of Apparatus
5	Procedure
7	Report Precision and Bias Keywords TABLE 1
8	A1. TYPICAL DILUENTS A1.1 Diluent List A2. PROCEDURE FOR VERIFYING ACCEPTABLE ANALYSIS-TO-ANALYSIS VARIABILITY FOR APC SAMPLES A2.1 A2.2 A2.3 TABLE A1.1 TABLE A2.1
9	A3. EXAMPLE OF VARIABILITY ANALYSIS AND DILUTION CORRECTION CALCULATION OF AN OIL SAMPLE A3.1 Sample Information A3.2 Analysis Information A3.3 Variability Analysis A3.4 Dilution Correction Calculation

Additional information

Standard Title	D7647-10 Standard Test Method for Automatic Particle Counting of Lubricating and Hydraulic Fluids Using Dilution Techniques to Eliminate the Contribution of Water and Interfering Soft Particles by Light Extinction
Published Code	ASTM
Publication Date	2010
Pages Count	9