1、 This document is restricted and may not be sent outside Navistar Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2017 by Navistar Inc. JUNE 2017 Page 1 of 5 NAVISTAR, INC. Material, Parts, and Process Specifications (M
2、PAPS) NUMBER: MPAPS D-7127 Former Designation: TMS-7127 TITLE: Mattresses CURRENT REV No.: 1706 DATE: June 2017 WRITTEN/EDITED BY: D. Baker APPROVED BY: R. Goluch SUPERSEDES: Rev. C-1 Oct 2007 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISION This specification may involve hazard
3、ous 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 applicability of regulatory limits prior to use. 1.0 APPLICATION
4、This specification covers requirements of a foam tri-laminate mattress and three types of innerspring mattresses that are used in the sleeper compartments of International trucks. Type I is a standard innerspring mattress that is used in service parts, Type II is a premium innerspring mattress that
5、is used in current production, and Type III is an innerspring mattress that tapers from top to bottom to accommodate a smaller bottom width and length of finish mattress. 2.0 SCOPE This specification covers the general construction, durability, performance requirements, design, quality, qualificatio
6、n, shipping and identification, and source approval procedures for innerspring and foam mattresses. 2.1 Restricted Chemical Substances Effective January 1, 2007, all product supplied to the requirements of this specification must comply with the requirements of the MPAPS B-50 specification. 3.0 REFE
7、RENCE DOCUMENTS Unless otherwise specified, the latest issue of all referenced standards shall apply. The following Specifications, Standards, and Regulations are referenced in this specification. Quality System Standard ISO 9001 or TS-16949 NAVISTAR MPAPS P-9544 NAVISTAR Supplier Packing and Shippi
8、ng Std. D-13 NAVISTAR MPAPS D-7088 NABM/ISPA Cornell Test Procedure NAVISTAR MPAPS L-6505 CFR Title 29, Part 1910 FMVSS 571.302 NAVISTAR MPAPS B-50 NAVISTAR Engineering Design Std. A-16 4.0 GENERAL REQUIREMENTS Individual components of the trim composite/assembly must meet all requirements of the ma
9、terial specification(s) indicated on the engineering drawing for the component and/or subassembly in addition to meeting the relevant requirements of this specification. Ticking shall meet the requirements of MPAPS D-7088 unless otherwise specified. NUMBER: MPAPS D-7127 TITLE: Mattresses REVISION: 1
10、706 This document is restricted and may not be sent outside Navistar Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2017 by Navistar Inc. JUNE 2017 Page 2 of 5 4.1 Construction of Innerspring Mattress 4.1.1 Innerspring
11、 Type 1: The innerspring configuration shall be a Bonnell coil, 312 count (based on full size). The coils shall be 13.5-gauge steel and the helicals shall be 17-gauge steel. The size of the individual parts will be indicated by the engineering drawing. When indicated on the engineering drawing, the
12、innerspring will articulate to fit into the sleeper compartment. Type II: The innerspring configuration shall be a 5” Holland Maid Innerspring unit 308 count (based on full size). The interior coils shall be 13.5-gauge steel, edge coils shall be 13-gauge steel and the helicals shall be 17.5-gauge st
13、eel. Type III: The innerspring configuration shall be a Marshall Unit, 520 count (based on full size). The coils shall be electronically tempered, 15.5-gauge steel, 5-1/8“ Samson technology and will be individually encased by ultrasonically welding special Hanes Quantum non-woven fabric that flexes
14、with the coil. The innerspring unit shall taper from top to bottom to accommodate a smaller bottom width and length of finished mattress. The mattress ticking shall be constructed of a bamboo stretch knit material per MPAPS D-7088, Type IV. 4.1.2 Border Rod Type I: Border rods shall be made of 9-gau
15、ge steel wire. Type II: Border rods shall be made of 6-gauge steel wire with three Holland Wire edge clips evenly spaced and affixed to the top and bottom border wire on each side of the length on the innerspring. Type III: Border rods shall be 9-gauge steel wire affixed with c-rings. 4.1.3 Insulato
16、r Type I: The insulator shall be .75 oz. resinated fiber pad, top and bottom. Type II: The insulator shall be .75 oz. resinated fiber pad, top and bottom. Type III: The innersprings are individually wrapped in cloth; therefore, an insulator is not required. 4.1.4 Padding Padding materials shall be s
17、ufficient to meet the finished size requirements as well as the performance requirements. 4.1.5 Foam Foam for innerspring mattresses shall meet the requirements of MPAPS L-6505 with the following ILD requirements unless otherwise specified on the engineering drawing: 4.1.5.1 Topper for Innerspring M
18、attress INNERSPRINGMATTRESS DENSITY Type I kg/m lb/ft DENSITY Type II kg/m lb/ft DENSITY Type III kg/m lb/ft ILD Type I N lb ILD Type II N lb ILD Type III N lb Topper 29 1.25 29 1.8 29 1.8 160 36 160 36 160 36 4.2 Construction of Tri-laminate Foam Mattresses 4.2.1 Foam The foam shall meet the requir
19、ements of MPAPS L-6505 with the following requirements unless otherwise specified on the engineering drawing: NUMBER: MPAPS D-7127 TITLE: Mattresses REVISION: 1706 This document is restricted and may not be sent outside Navistar Inc. or reproduced without permission from Corporate Technical Standard
20、s. Suppliers are required to assume all patent liability. 2017 by Navistar Inc. JUNE 2017 Page 3 of 5 FOAM MATTRESS THICKNESS mm in DENSITY kg/m lb/ft ILD N lb Core 76.2 3 24 1.5 160 36 Topper (base) 6.4 .25 20 1.25 125 28 Topper (convoluted peak) 25.4 1 20 1.25 125 28 4.3 Performance Requirements F
21、or Innerspring Mattress 4.3.1 Mattress Performance Requirements 4.3.1.1 Method: ISPA/NABM-Cornell testing procedure, 230 lbs, 160 strokes per minute for 50,000 cycles. 4.3.1.2 Required: No more than 12.7mm (.50 in) loss in total height. There shall not be any objectionable wear or damage that would
22、prevent continued use of the mattress. 4.4 Flammability The finished composite must conform to and be certified to meet all requirements of FMVSS-302 and shall meet all requirements of MPAPS P-9544. Components of the assembly/composite which are not 100% bonded together shall be tested separately an
23、d each component must demonstrate required flammability resistance. Components of the composite which are 100% bonded together are not specifically required to demonstrate flammability resistance when tested separately as individual parts, however; the bonded composite must demonstrate the required
24、flammability resistance. 5.0 QUALITY Material supplied shall be free from objectionable odor, be of uniform quality, and shall match the pattern, color, finish, and texture of pre-production approved samples on file in the Industrial Design Department at IPD. 6.0 QUALIFICATION Engineering qualificat
25、ion of sources is required in advance of production shipments. Samples shall be accompanied by test data certifying that all requirements of the specification have been met. Suppliers shall submit samples for approval of finish, luster, color and appearance to the Navistar Industrial Design Group. U
26、pon approval, styling master samples denoting the minimum level of acceptable appearance quality shall be developed and retained by the supplier and the quality department of each using NAVISTAR facility. 6.1 Quality Control Plan A Quality Control Plan for products supplied to the requirements of th
27、is specification will be established by mutual agreement between NAVISTAR and the supplier. Unless specific exception is noted, the following characteristics, where applicable*, shall be included in the plan as features for management by statistical process control.* NUMBER: MPAPS D-7127 TITLE: Matt
28、resses REVISION: 1706 This document is restricted and may not be sent outside Navistar Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2017 by Navistar Inc. JUNE 2017 Page 4 of 5 * Other characteristics for inclusion in
29、 the control plan may be specified on the engineering drawing and/or purchase order. * See NAVISTAR Engineering Design Standard A-16 7.0 SOURCE APPROVAL AND QUALITY CONTROL 7.1 Supplier Requirements All suppliers to NAVISTAR are required to be registered to ISO 9001 Quality System Requirements. NAVI
30、STAR will also accept TS-16949 registration as long as the supplier can also fulfill all AIAG PPAP (Production Part Approval Process) documentation and approval requirements. Suppliers must maintain their certification with an accredited registrar and must furnish copies of registration certificates
31、 to their Corporate Buyer upon request. 7.2 Approval Parts supplied against contracts 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 approv
32、al. In the event that changes in material, properties, processing practices, construction, color, or labeling of the product are required, the supplier shall notify NAVISTAR Materials Engineering and Purchasing and Supplier Development of the proposed change(s). Test data indicating conformance to a
33、ll requirements of this specification, test samples, and new or amended or updated Material Safety Data Sheet(s) (MSDS), in accordance with CFR Title 29, Part 1910 shall be submitted with the request for change. 7.3 Process Control The supplier shall either, perform and report results of tests on sp
34、ecific lots of parts produced using ISO 9001 or TS-16949 guidelines, or provide statistical evidence of the lot having been produced in a state of statistical control and with a process capable of providing all required properties. The part supplier and the quality control manager of the using NAVIS
35、TAR plant may determine testing and reporting requirements on specific products. 8.0 SHIPPING AND HANDLING Shipping and identification shall be in accordance with NAVISTAR Supplier Packing and Shipping Standard D-13. Parts shall be packaged so as to avoid any damage in shipment detrimental to the ap
36、pearance of the part. 9.0 DESIGNATION ON DRAWINGS Example of note to use on drawings: Innerspring mattress per MPAPS D-7127, Type II Foam mattress per MPAPS D-7127 NUMBER: MPAPS D-7127 TITLE: Mattresses REVISION: 1706 This document is restricted and may not be sent outside Navistar Inc. or reproduce
37、d without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2017 by Navistar Inc. JUNE 2017 Page 5 of 5 10.0 TECHNICAL INFORMATION For further information, related to the technical content of this specification, contact: Suppliers may purchase cont
38、rolled copies of this specification by contacting: Materials Engineering and Technology Dept. 10400 W. North Avenue Melrose Park, IL 60160 E-mail: MaterialsEngineeringN IHS Markit Inc. 15 Inverness Way East Englewood CO 80112-5776 Phone: 1-800-854-7179 E-mail: AutomotiveIHS.com Website: http:/ REVISION HISTORY Revision Level Change Approved by Date Approved 1706 Converted to MPAPS R. Goluch
