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 09 Revised Revised 3.4.12 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-A2 ETFE TUBE, HIGH PRESSURE, FUEL/ALCOHOL RESISTANT, CONDUCTIVE, LOW PERMEATING 1. SCOPE This specification defines a Multilayered Tubing with a conductive inner layer. The construction has low permeation rates and good resistance to fuel/alcohol blends. 2
3、. APPLICATION This specification was released originally for flexible fuel vapor lines requiring low permeation and electrical conductivity. The maximum working pressure should not exceed 690 kPa. Long term continuous operating temperature should not exceed 90 C and maximum intermittent temperature
4、should not exceed 115 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 Materi
5、als (WSS-M99P1111-A). 3.4 PERFORMANCE REQUIREMENTS 3.4.1 Room Temperature Burst 5520 kPa (SAE J2260, section 7.1) 3.4.2 High Temperature Burst 2070 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
6、4140 kPa minimum strength burst pressure (SAE J2260, section 7.1) Check for delamination No loss of (SAE J2260 section 7.11.2) adhesion 3.4.4 Heat Aged (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1008 h at 90 +/- 2 C) ENGINEERING MATERIAL SPECIFICATION WSS-M98D33-A2 Printed copies are uncontrolle
7、d Copyright 2006, Ford Global Technologies, LLC Page 2 of 3 After heat aging determine burst 4140 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 4140 kPa minimum (SAE J2260, section
8、7.3) burst pressure 3.4.6 Burst Test Kinked Tubing 4140 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 4140 kPa minimum (SAE J2260, section 7.6) burst pressure 3.4.9 Fuel Resistance 3.4.9.1
9、65% Fuel C, 20% Methanol, 15% Methyl Tert-butyl Ether (SAE J2260, section 7.7, 1008 h, 40 +/- 2 C) Perform cold impact, 4140 kPa minimum (SAE J220section 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
10、.4.9.2 85% Fuel C, 15% Methanol (SAE J2260, section 7.7, 1008 h, 40 +/- 2 C) Perform cold impact 4140 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 3.4.10 Oxidized Fuel
11、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 4140 kPa minimum (SAE J2260, section 7.6) burst pressure then determine burst strength (SAE J2260, section 7.1) ENGINEERING MATERIAL SPECIFICATION WSS-M98D33-A2 Printed
12、 copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 3 Check for delamination No loss of (SAE J2260 section 7.11.2) adhesion 3.4.11 Electrical Resistance Surface (SAE J2260, section 7.9) resistivity less than or equal to 106 Omega 3.4.12 Permeation Resistance 25 gm/m2/24
13、h (SAE J2260, section 7.10 using 75% Fuel C, 25% Methanol, 60 C, 200 kPa) 3.4.13 Fluid Resistance Cover Stock (Expose outside of tubing only) 3.4.13.1 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, 4140 kPa minimum (S
14、AE J2260 section 7.6) burst pressure then determine burst strength (SAE J2260, section 7.1) 3.4.13.2 Immersion in IRM 903 oil (ISO 1817/ASTM D 471, 24 h at 40 +/- 2 C followed by 24 h at 90 C dry) Perform cold impact 4140 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
