1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 00 2015 05 26 Released D. Dhar, NA Controlled document at www.MATS Copyright 2015, Ford Global Technologies, LLC Page 1 of 2 LUBRICANT, POLYALKYLENE GLYCOL (R-134a & R-1234yf) WSS-M2C300-A2 1. SCOPE This material specification defines th
2、e physical and chemical properties of a polyalkylene glycol-based synthetic lubricant to be used with HFC-134a. 2. APPLICATION This specification was released originally for oils used in air conditioning compressors operating within the temperature range of -40C to 125 C. 3. REQUIREMENTS 3.1 STANDAR
3、D REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 SPECIFIC GRAVITY 0.95 - 1.05 (ASTM D 4052, 15.6/15.6 C) 3.3 VISCOSITY (ISO 3104/ASTM D 445) At 40 C 39 50 mm2/s At 100 C 9 9
4、.3 mm2/s 3.4 WATER CONTENT 700 ppm, max (ASTM D6304) 3.5 FLASH POINT 160C min (ISO 2592/ASTM D92) 3.6 POUR POINT -40 C max (ISO 3016/ASTM D97) 3.7 EVAPORATION LOSS 5.0 % max (ASTM D 972, 24 h at 100 +/- 2 C) 3.8 TOTAL ACID NUMBER 0.1 mg KOH/g, max (ASTM D664) 3.9 LUBRICANT PAINT STAINING No softenin
5、g, no discoloration (FLTM BJ 126-01) 3.10 WEAR PREVENTIVE CHARACTERISTICS 3300 N, min (ASTM D3233) ENGINEERING MATERIAL SPECIFICATION WSS-M2C300-A2 Copyright 2015, Ford Global Technologies, LLC Page 2 of 2 3.11 SEALED TUBE STABILITY TEST (ANSI/ASHRAE Standard 97-1989, 14 d at 175 +/- 2 C with HFO-12
6、34yf and HFC-134a) Change in Viscosity at 40 C 10 mm2/s, max (ASTM D445) Test Method: After aging, visually inspect the test tube contents for liquid discoloration and any deposits formation. Visually inspect the metal coupons for discoloration or evidence of corrosion and/or copper plating. Analyze
7、 HFO-1234yf/PAG and HFC-134a/PAG using the Selective Ion Electrode Method for ppm of fluoride and chloride. 3.12 REFRIGERANT COMPATIBILTIY HFO-1234yf & HFC-134a 3.13 LUBRICANT ADDITIVE COMPOUND ND-12 3.14 CONSISTENCY This material shall be free from acid, alkali, or other foreign matter. It must also be free from any objectionable odors. 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifications. 5. SUMMARY OF REVISIONS
