1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 10 31 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.5 & 4 1999 09 08 Revised Revised 3.4.11 K. Gribble 1996 02 13 Activated J. Spencer Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 3 TUBE, POLYA
2、MIDE 12 (PA12) COVER, TIE LAYER, WSS-M98D33-A1 ETFE TUBE, LOW PRESSURE, FUEL/ALCOHOL RESISTANT, NON-CONDUCTIVE, LOW PERMEATING 1. SCOPE This specification defines a Multilayered Tubing with a non-conductive inner layer. The construction has low permeation rates and good resistance to fuel/alcohol bl
3、ends. 2. APPLICATION This specification was released originally for flexible fuel vapor lines requiring low permeation. The maximum working pressure should not exceed 104 kPa. Long term continuous operating temperature should not exceed 90 C and maximum intermittent temperature should not exceed 115
4、 C. These lines will meet the requirements of the US market for both reformulated and flexible fuels. 3. REQUIREMENTS 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)
5、3.4 PERFORMANCE REQUIREMENTS In addition to those requirements listed below in sections 3.5.1, 3.5.2 and 3.5.6, the tube must meet the requirements for fuel vapor tubing listed in section 7 of SAE J2260. The fuels listed in sections 3.5.3, 3.5.4 and 3.5.5 are to replace the fuels listed in SAE J2260
6、 sections 7.7, 7.8 and 7.10 respectively. 3.4.1 Room Temperature Burst 832 kPa (SAE J2260, section 7.1) 3.4.2 High Temperature Burst 312 kPa (SAE J2260, section 7.2, 90 C) 3.4.3 Heat Aged (ISO 188/ASTM D 573, 150 +/- 50 air change/h, 168 h at 115 +/- 2 C) After heat aging determine burst 624 kPa min
7、imum strength burst pressure (SAE J2260, section 7.1) Check for delamination No loss of (SAE J2260 section 7.11.2) adhesion ENGINEERING MATERIAL SPECIFICATION WSS-M98D33-A1 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 3 3.4.4 Heat Aged (ISO 188/ASTM D 573,
8、150 +/- 50 air changes/h, 1008 h at 90 +/- 2 C) After heat aging determine burst 624 kPa minimum strength burst pressure (SAE J2260, section 7.1) Check for delamination No loss of (SAE J2260 section 7.11.2) adhesion 3.4.5 Resistance to Zinc Chloride 624 kPa minimum (SAE J2260, section 7.3) burst pre
9、ssure 3.4.6 Burst Test Kinked Tubing 624 kPa minimum (SAE J2260, section 7.4) burst pressure 3.4.7 Resistance to Kinking Ball must pass (SAE J2260, section 7.5) freely 3.4.8 Cold Temperature Impact 624 kPa minimum (SAE J2260, section 7.6) burst pressure 3.4.9 Fuel Resistance 3.4.9.1 65% Fuel C, 20%
10、Methanol, 15% Methyl Tert-butyl Ether (SAE J2260, section 7.7, 1008 h, 40 +/- 2 C) Perform cold impact 624 kPa minimum (SAE J2260, section 7.6) burst pressure then determine burst strength (SAE J2260, section 7.1) Check for delamination No loss of (SAE J2260 section 7.11.2) adhesion 3.4.9.2 85% Fuel
11、 C, 15% Methanol (SAE J2260, section 7.7, 1008 h, 40 +/- 2 C) Perform cold impact 624 kPa minimum (SAE J2260, section 7.6) burst pressure then determine burst strength (SAE J2260, section 7.1) Check for delamination No loss of (SAE J2260 section 7.11.2) adhesion ENGINEERING MATERIAL SPECIFICATION WS
12、S-M98D33-A1 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 3 3.4.10 Oxidized Fuel Resistance (Sour Gas) (SAE J2260, section 7.8 336 h, 60 +/- 2 C, except prepare fuel per FLTM AZ 105-01 PN 180) Perform cold impact 624 kPa minimum (SAE J2260, section 7.6) burs
13、t pressure then determine burst strength (SAE J2260, section 7.1) Check for delamination No loss of (SAE J2260 section 7.11.2) adhesion 3.4.11 Permeation Resistance 25 gm/m2/24 h (SAE J2260, section 7.10 using 75% Fuel C, 25% Methanol, 60 C, 200 kPa) 3.4.12 Fluid Resistance Cover Stock (Expose outsi
14、de of tubing only) 3.4.12.1 Immersion in 85% Fuel C, 15% Methanol (ISO 1817/ASTM D 471, 24 h at 40 +/- 2 C followed by 24 h at 90 C dry) Perform cold impact 624 kPa minimum (SAE J2260, section 7.6) burst pressure then determine burst strength (SAE J2260, section 7.1) 3.4.12.2 Immersion in IRM 903 oi
15、l (ISO 1817/ASTM D 471, 24 h at 40 +/- 2 C followed by 24 h at 90 C dry) Perform cold impact 624 kPa minimum (SAE J2260, section 7.6) burst pressure then determine burst strength (SAE J2260, section 7.1) 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 RECYCLING CODE PA12,ETFE
