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-A6 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 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 should
4、 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 Materials (W
5、SS-M99P1111-A). 3.4 PERFORMANCE REQUIREMENTS 3.4.1 Room Temperature Burst 5520 kPa (SAE J 2260, section 7.1) 3.4.2 High Temperature Burst 2070 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 burst 4140
6、 kPa min strength burst pressure (SAE J 2260, section 7.1) Check for delamination No loss of (SAE J 2260, section 7.11.2) adhesion 3.4.4 Heat Aged (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1008 h at 90 +/- 2 C) After heat aging determine burst 4140 kPa min strength burst pressure (SAE J 2260, s
7、ection 7.1) ENGINEERING MATERIAL SPECIFICATION WSS-M98D33-A6 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 3 Check for delamination No loss of (SAE J 2260, section 7.11.2) adhesion 3.4.5 Resistance to Zinc Chloride 4140 kPa min (SAE J 2260, section 7.5) burs
8、t pressure 3.4.6 Burst Test Kinked Tubing 4140 kPa min (SAE J 2260, 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 4140 kPa min (SAE J 2260, section 7.6) burst pressure 3.4.9 Fuel Resistance 3.4.9.1 65% Fuel C, 20
9、 Methanol, 15% Methyl Tert-butyl Ether (SAE J 2260, section 7.7, 1008 h, 40 +/- 2 C) Perform cold impact 4140 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% F
10、uel C, 15% Methanol (SAE J2260, section 7.7, 1008 h, 40 +/- 2 C) Perform cold impact (SAE 4140 kPa min J 2260, section 7.6) then burst pressure 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 Resistance (So
11、ur Gas) (SAE J 2260, section 7.8 336 h, 60 +/- 2 C, except prepare fuel per FLTM AZ 105-01 PN 180) Perform cold impact (SAE J 2260, 4140 kPa min section 7.6) then determine burst burst pressure strength (SAE J 2260, section 7.1) Check for delamination No loss of (SAE J 2260, section 7.11.2) adhesion
12、 ENGINEERING MATERIAL SPECIFICATION WSS-M98D33-A6 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 3 3.4.11 Electrical Resistance Surface (SAE J 2260, section 7.9) resistivity less than or equal to 106 Omega 3.4.12 Permeation Resistance 20 gm/m2/24 h (SAE J 226
13、0, section 7.10 using 75% Fuel C, 25% Methanol, 60 C, 10 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 min (SAE J 2260, sectio
14、n 7.6) burst pressure then determine burst strength strength (SAE J 2260, 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 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
