1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2008 11 03 B2/B3 N-STATUS B2/B3 Replaced by WSS-M13P13-A L. Schmalz, FNA 2004 04 22 Revised Updated format 1991 04 26 Released CE00E10109215007 C. C. Gray Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 1 of
2、2 LUBRICANT, POLYALKYLENE GLYCOL WSH-M1C231-B NOT TO BE USED FOR NEW DESIGN WST-M1C231-B2 NOT TO BE USED FOR NEW DESIGN WSS-M1C231-B3 1. SCOPE WSH-M1C231-B: This material specification defines the physical and chemical properties of a polyalkylene glycol based synthetic lubricant to be used with HFC
3、134a. WST-M1C231-B2: This material specification defines the physical and chemical properties of a polyalkylene glycol based synthetic lubricant to be used with HFC-134a; for heavy truck air conditioning systems. WSS-M1C231-B3: This material specification defines the physical and chemical propertie
4、s of a polyalkylene glycol based synthetic lubricant to be used for seals in HVAC systems that use HFC-134a type refrigerants. 2. APPLICATION This specification was released originally for oils used in air conditioning compressors operating within the temperature range of -40 to 125 C. 3. REQUIREMEN
5、TS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). B B2 B3 3.3 SPECIFIC GRAVITY 0.95 - 1.05 0.98 - 1.08 1.02 - 1.08 (ASTM D 4052, 15.6/15.6 C) 3.4 VISCOSITY, mm2/s (
6、ISO 3104/ASTM D 445) At 40 C 46 min 73 - 82 437 - 483 At 100 C 10 - 15 15 min - ENGINEERING MATERIAL SPECIFICATIONWSH-M1C231-B WST-M1C231-B2 WSS-M1C231-B3 Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 2 of 2 B B2 B3 3.5 WATER CONTENT, ppm, max 1000 1000 - 3.6 FLA
7、SH POINT, C, min 200 200 260 (ISO 2592/ASTM D 92) 3.7 POUR POINT, C, max -40 - -30 (ISO 3016/ASTM D 97) 3.8 EVAPORATION LOSS, %, max 5.0 - - (ASTM D 972, 24 h at 100 +/- 2 C) 3.9 TOTAL ACID NUMBER, 0.25 - 1.0 mg KOH/g, max (ASTM D 664) 3.10 LUBRICANT PAINT No softening, no discoloration STAINING (B
8、only) (FLTM BJ 126-01) 3.11 WEAR PREVENTIVE 2702 - - CHARACTERISTICS, N, min (ASTM D 3233) 3.12 SEALED TUBE STABILITY TEST (ANSI/ASHRAE Standard 97-1989, 14 d at 175 +/- 2 C with HFC-134a) Change in Viscosity at 10 - - 40 C, mm2/s, max (ASTM D 445) Test Method: After aging, visually inspect the test
9、 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 HFC-134a/PAG using the Selective Ion Electrode Method for ppm of fluoride and chloride. 3.13 CONSISTENCY This material shall be free from acid, alkali, or other foreign matter. It must also be free from any objectionable odors.
