1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 10 31 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.5 & 4 2000 07 31 Editorial No Technical Change APC 1997 08 27 Activated J. Spencer Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 3 TUBE, POLYA
2、MIDE 12 (PA12) COVER, ETFE TUBE, WSS-M98D33-A5 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 blends. 2. AP
3、PLICATION 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 C. These l
4、ines 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). 3.4 PERFOR
5、MANCE REQUIREMENTS In addition to those requirements listed below in para 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 J 2260. The fuels listed in para 3.5.3, 3.5.4 and 3.5.5 are to replace the fuels listed in SAE J 2260 sections 7.7, 7
6、.8 and 7.10 respectively. 3.4.1 Room Temperature Burst 832 kPa (SAE J 2260, section 7.1) 3.4.2 High Temperature Burst 312 kPa (SAE J 2260, 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 624 kPa min burst strength burs
7、t pressure (SAE J 2260, section 7.1) Check for delamination No loss of (SAE J 2260 section 7.11.2) adhesion ENGINEERING MATERIAL SPECIFICATION WSS-M98D33-A5 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 3 3.4.4 Heat Aged (ISO 188/ASTM D 573, 150 +/- 50 air c
8、hanges/h, 1008 h at 90 +/- 2 C) After heat aging determine 624 kPa min burst strength burst pressure (SAE J 2260, section 7.1) Check for delamination No loss of (SAE J 2260 section 7.11.2) adhesion 3.4.5 Resistance to Zinc Chloride 624 kPa min (SAE J 2260, section 7.5) burst pressure 3.4.6 Burst Tes
9、t Kinked Tubing 624 kPa min (SAE J2260, section 7.4) burst pressure 3.4.7 Resistance to Kinking Ball must pass (SAE J 2260, section 7.3) freely 3.4.8 Cold Temperature Impact 624 kPa min (SAE J2260, section 7.6) burst pressure 3.4.9 Fuel Resistance 3.4.9.1 65% Fuel C, 20% Methanol, 15% Methyl Tert-bu
10、tyl Ether (SAE J 2260, section 7.7, 1008 h, 40 +/- 2 C) Perform cold impact 624 kPa min (SAE J 2260, section 7.6) burst pressure then determine burst strength (SAE J 2260, section 7.1) Check for delamination No loss of (SAE J 2260, section 7.11.2) adhesion 3.4.9.2 85% Fuel C, 15% Methanol (SAE J 226
11、0, section 7.7, 1008 h, 40 +/- 2 C) Perform cold impact 624 kPa min (SAE J 2260, section 7.6) burst pressure then determine burst strength (SAE J 2260, section 7.1) Check for delamination No loss of (SAE J 2260, section 7.11.2) adhesion 3.4.10 Oxidized Fuel Resistance (Sour Gas) (SAE J 2260, section
12、 7.8 336 h, 60 +/- 2 C, except prepare fuel per FLTM AZ 105-01 PN 180) ENGINEERING MATERIAL SPECIFICATION WSS-M98D33-A5 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 3 Perform cold impact 624 kPa min (SAE J 2260, section 7.6) burst pressure then determine bu
13、rst strength (SAE J 2260, section 7.1) Check for delamination No loss of (SAE J 2260, section 7.11.2) adhesion 3.4.11 Permeation Resistance 20 gm/m2/24 h (SAE J 2260, section 7.10 using 75% Fuel C, 25% Methanol, 60 C, 200 kPa) 3.4.12 Fluid Resistance Cover Stock (Expose outside of tubing only) 3.4.1
14、2.1 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 min (SAE J 2260, section 7.6) burst pressure then determine burst strength (SAE J 2260, section 7.1) 3.4.12.2 Immersion in IRM 903 oil (ISO 1817/ASTM D 471, 24
15、 h at 40 +/- 2 C followed by 24 h at 90 C dry) Perform cold impact 624 kPa min (SAE J 2260, section 7.6) burst pressure then determine burst strength (SAE J 2260, 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
