ARP5991B Test Method for the Determination of Water Concentration in Polyol Ester and Diester Aerospace Lubricants by Coulometric Karl Fischer Titration

Stabilized

05/17/2024

Features
Issuing Committee
Scope
Content
The test method describes the procedure for the direct determination of water concentration in polyol ester and diester based aerospace lubricants by commercially available automated coulometric Karl Fischer titration instruments. The method was validated to cover the water concentration range of 150 to 3500 µg/g. The method may also be suitable for the determination of water concentrations outside this range and for other classes of fluids; however, the precision statement shall not be applicable for such uses.
Rationale
Content
The test method in ARP5991 is not likely to evolve or change, so the E-34 Committee has decided to stabilize the Aerospace Recommended Practice.
Meta TagsDetails
DOI
https://doi.org/10.4271/ARP5991B
Pages
10
Citation
SAE International Recommended Practice, Test Method for the Determination of Water Concentration in Polyol Ester and Diester Aerospace Lubricants by Coulometric Karl Fischer Titration, SAE Standard ARP5991B, Stabilized May 2024, Revised November 2022, Reaffirmed September 2016, Issued December 2002, https://doi.org/10.4271/ARP5991B.
Additional Details
Publisher
Published
May 17
Product Code
ARP5991B
Content Type
Recommended Practice
Status
Stabilized
Language
English

Revisions