1、 This document is restricted and may not be sent outside International Truck and Engine Corporation or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. Ge32001 by International Truck and Engine Corporation. AUGUST 2001 Page 1 of
2、 4 INTERNATIONAL TRUCK AND ENGINE CORPORATION (TMS) TRUCK MATERIAL SPECIFICATIONNUMBER: TMS-6501 TITLE: Molded Seats, Urethane Foam REVISION: H-1 WRITTEN/EDITED BY: Materials Engineering APPROVED BY: Materials Engineering DATE ISSUED: August 2001 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR
3、CURRENT REVISION This specification may involve hazardous materials, equipment, and procedures. This specification does not purport to address all of the safety issues associated with its use. The user is responsible to consult appropriate safety and health practices and to determine the applicabili
4、ty of regulatory limits prior to use. Change Notice: Reformatted and Editorial Changes Reference: File 30-16B Keywords: Urethane Foam; Molded Seats 1.0 APPLICATION The material covered by this specification is an expanded cellular polyurethane foam of a polyether type with density required for the m
5、anufacture of molded seats and seat backs. 2.0 SCOPE This specification covers the general requirements, property and performance requirements, quality, identification, quality control, and certification for two interchangeable foam products. Approved sources and quality control are included. Type I
6、 Heat Cured - Conventional Type II Cold Cured - High Resilient 3.0 REFERENCE DOCUMENTS Unless otherwise specified, the latest issue of all referenced standards shall apply. The following standards, specifications and regulations are referenced in this specification. Quality System Standard QS-9000 (
7、ISO 9001) ASTM D 3574 INTERNATIONAL IQR Quality Standard FMVSS 302 INTERNATIONAL Manufacturing Standard D-13 INTERNATIONAL TMS-9544 CFR Title 29, Part 1910 4.0 GENERAL REQUIREMENTS 4.1 Surface Condition Molded to contour parts shall be free from any surface crust which could come into contact with t
8、he trim or seat covering material. 4.2 Dimensional Tolerances Height, width, length, and curvature tolerances shall be so stated on the applicable drawing for each part. 4.3 Property And Performance Requirements All tests shall be performed in accordance with ASTM D-3574, Testing of Flexible Cellula
9、r Materials, unless otherwise specified. Properties are the same for both type I and II, unless otherwise noted. NUMBER: TMS-6501 TITLE: MOLDED SEATS, URETHANE FOAM REVISION: H-1 This document is restricted and may not be sent outside International Truck and Engine Corporation or reproduced without
10、permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. Ge32001 by International Truck and Engine Corporation. AUGUST 2001 Page 2 of 4 4.3.1 Compressibility - Test B1 Shall be specified on applicable part drawing. 4.3.2 Tensile Strength - Test E Shall be
11、 82 kPa (12 psi) min from an average of three test specimens. 4.3.3 Elongation - Test E Type I: Shall be 170% min Type II: Shall be 130% min 4.3.4 Tear Resistance - Test F Type I: Shall be 295 N/m (1.7 lbf/in) width min Type II: Shall be 245 N/m (1.4 lbf/in) width min 4.3.5 Compression Set - Test D,
12、 75% Compression Shall be 20% max, measured after 30 minutes recovery. 4.3.6 Dry Heat Aging - Test K Shall exhibit 20% loss max from original tensile strength. 4.3.7 Fatigue Test - Test I2, Procedure B, except as noted Maximum allowable height loss shall be 5% of the original sample thickness, when
13、tested as follows: Back pads - Use roller force of 130 N (30 lbf) Seats - Use roller force of 260 N (60 lbf) 4.3.8 Steam Autoclave Test - Test J2 Shall be 20% max loss from the original compressibility. 4.3.9 Solvent Resistance - 1 Hour Immersion in Petroleum Naptha Shall show no visible signs of de
14、terioration or surface stickiness. 4.3.10 Odor Shall be inoffensive both wet or dry. 4.3.11 Staining 4.3.11.1 Method RS sunlamp at a distance of 30 cm (12 in) for 96 hours in contact with light colored or vinyl coated fabrics. 4.3.11.2 Required Shall not stain. 4.3.12 Flammability Resistance Materia
15、l and parts supplied to this specification shall conform to and be certified by the supplier to meet the requirements of Federal Motor Vehicle Safety Standard No. 302 - Flammability of Interior Materials, and all requirements of TMS-9544. NUMBER: TMS-6501 TITLE: MOLDED SEATS, URETHANE FOAM REVISION:
16、 H-1 This document is restricted and may not be sent outside International Truck and Engine Corporation or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. Ge32001 by International Truck and Engine Corporation. AUGUST 2001 Page
17、3 of 4 5.0 QUALITY Parts supplied to this specification shall be uniform throughout in texture, finish, and properties. Finished parts shall not exhibit solid spots, cracks, or craters larger than 0.6 cm (1/2 in) in diameter by 0.6 cm (1/4 in) deep, and no surface shredding or crumbling shall be evi
18、dent during or after assembly. Defects which affect the appearance or performance of the trimmed seats shall be cause for rejection. If coring is required by applicable drawings, it shall be done during the molding operation. 5.1 Any reinforcing materials, such as burlap, that are specified to be in
19、cluded with the pad, which will become an integral part of the pad, shall have a bond strength greater than the cohesive strength of the foam and meet the requirements of a composite as specified by Federal Motor Vehicle Safety Standard No. 302 - Flammability of Interior Materials, and TMS-9544 5.2
20、Quality Control Frequency 5.2.1 Compound Evaluation The supplier shall perform a complete compound evaluation to the requirements of TMS-6501 at 30 day intervals. 5.2.2 Indentation Load Deflection The supplier shall perform three tests per lot* with all tests to meet requirements. A failure in the i
21、nitial tests shall require a quarantine of the lot, followed with an additional three ILD tests. Any additional failures shall require 100% ILD test with the release of only satisfactory parts. *ILD testing of lots of less than 50 parts may be reduced to one test per lot. A lot shall be the product
22、of a single part during one production shift. All parts shall be marked with a lot number that indicates date produced. 5.2.3 Visual Examination The supplier shall perform a 100% visual inspection to the requirements of “Quality“ section of TMS-6501 to reject unsatisfactory parts. 5.2.4 Certificatio
23、n Parts supplied to this specification shall have certified test data of compliance to the Quality Control section of TMS-6501, and complete records will be maintained at the supplier and be subject to periodic review of International Quality personnel. When Type II material is supplied to this spec
24、ification, notice shall be given to Materials Laboratory, TDTC, and the appropriate Quality Control Department of the receiving plant. 6.0 SOURCE APPROVAL AND QUALITY CONTROL 6.1 Supplier Requirements Suppliers must conform to the requirements of the International IQR Quality Standard which includes
25、 conformance to the QS 9000 (ISO9001) Quality System Standard. A mutually acceptable QC Plan as described therein is required for source approval to the requirements of this specification. NUMBER: TMS-6501 TITLE: MOLDED SEATS, URETHANE FOAM REVISION: H-1 This document is restricted and may not be se
26、nt outside International Truck and Engine Corporation or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. Ge32001 by International Truck and Engine Corporation. AUGUST 2001 Page 4 of 4 6.2 Approval Parts supplied against contrac
27、ts or purchase orders citing this specification shall be equivalent in all respects to those samples which were approved by the purchaser. No changes in formulation or processing practices are permitted without approval. In the event that changes in material, properties, processing practices, constr
28、uction, color, or labeling of the product are required, the supplier shall notify International TDTC and International Purchasing and Supplier Development of the proposed change(s). Test data indicating conformance to all requirements of this specification, test samples, and new or amended or update
29、d Material Safety Data Sheet(s) (MSDS), in accordance with CFR Title 29, Part 1910 shall be submitted with the request for change. 6.3 Process Control The supplier shall either perform and report results of tests on specific lots of parts produced or provide statistical evidence of the lot having be
30、en produced in a state of statistical control and with a process capable of providing all required properties. The part supplier and the plant metallurgist and/or the quality control manager of the using International plant may determine testing and reporting requirements on specific products. 7.0 S
31、HIPPING, PACKING AND IDENTIFICATION Loading, packing and identification shall be in accordance with Manufacturing Std. D-13. 7.1 Identification The material shall bear the manufacturers initials or trademark in letters a min of 1.27 cm (1/2 in) in height, with the month and year of fabrication, with
32、 an approved marking to indicate flame retardance. Marking compound shall be permanent, clearly legible and of such composition that adjacent pads shall not adversely affect the trim materials used in combination with it either wet or dry. Unless otherwise agreed upon or construction prohibits, mark
33、ing shall be located on bottom of seat cushions and on the back of seat backs. 8.0 DESIGNATION ON DRAWINGS The drawing shall indicate TMS-6501. No reference to Type I or II shall be made unless authorized by a Materials Engineer. 9.0 SOURCES Goodyear Rubber Company Cartex Corporation Hoover Chemical Corporation Woodbridge Foam Corporation
