Product Code:SAE J2654
Title:Hardness of Brake Lining
Issuing Committee:Brake Linings Standards Committee
Scope:Hardness measurements are used as a quality control check of the consistency of formulation and processing of brake linings. This hardness method is nondestructive. NOTE驴This method is not a measure of friction level.The hardness and the range of hardness are characteristic of each formulation; therefore, the acceptable values and ranges must be established for each formulation and may be affected by processing.NOTE驴The hardness of sintered powder metal lining is usually determined with Rockwell superficial hardness equipment. (See ASTM B 347)Product Code:SAE ARP5996
Title:Evaluation of Coking Propensity of Aviation Lubricants Using the Hot Liquid Process Simulator (Hlps) Single Phase Flow Technique
Issuing Committee:E-34 Propulsion Lubricants Committee
Scope: This method is designed to evaluate the coking propensity of synthetic ester-based aviation lubricants under single phase flow conditions found in certain parts of gas turbine engines, for instance in bearing feed tubes. This method is applicable to lubricants with a coking propensity, as determined by this method, falling in the range 0.01 to 3.00 mg.
Rationale: This method is designed to evaluate the coking propensity of synthetic ester-based aviation lubricants under single phase flow conditions found in certain parts of gas turbine engines, for instance in bearing feed tubes. This method is applicable to lubricants with a coking propensity, as determined by this method, falling in the range 0.01 to 3.00 mg.