ASTM D7843-12

Standard Test Method for Measurement of Lubricant Generated Insoluble Color Bodies in In-Service Turbine Oils using Membrane Patch Colorimetry

STANDARD published on 1.12.2012

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The information about the standard:

Designation standards: ASTM D7843-12
Note: WITHDRAWN
Publication date standards: 1.12.2012
SKU: NS-39179
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM

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The category - similar standards:

Lubricants, industrial oils and related products

Annotation of standard text ASTM D7843-12 :

Keywords:
membrane patch colorimetry, turbine oil, varnish, ICS Number Code 75.100 (Lubricants, industrial oils and related products)

Additional information

Significance and Use

5.1 This test can be a guide to end-users on the formation of lubricant-generated, insoluble deposits.

5.2 The results from this test are intended to be used as a condition monitoring trending tool as part of a comprehensive program, as outlined in standards such as Practice D4378.

1. Scope

1.1 This test method extracts insoluble contaminants from a sample of in-service turbine oil onto a patch and the color of the membrane patch is analyzed by a spectrophotometer. The results are reported as a ΔE value, within the CIE LAB scale.

1.2 This test method is not appropriate for turbine oils with dyes.

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.

2. Referenced Documents

D4177-22e1	Standard Practice for Automatic Sampling of Petroleum and Petroleum Products (Includes all amendments and changes 3/24/2023).
D4378-24	Standard Practice for In-Service Monitoring of Mineral Turbine Oils for Steam, Gas, and Combined Cycle Turbines
E177-20	Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E284-22	Standard Terminology of Appearance
E308-22	Standard Practice for Computing the Colors of Objects by Using the CIE System
E691-23	Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
D4057-22	Standard Practice for Manual Sampling of Petroleum and Petroleum Products

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