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. SEPTEMBER 2017 Page 1 of 7 NAVISTAR, INC. Material, Parts, and Process Specificat
2、ions (MPAPS) NUMBER: MPAPS F-2 Former Designation: CEMS F-2 TITLE: Fluid System Cleanliness Requirements CURRENT Rev. No.: 1709 DATE: Sep. 2017 WRITTEN/REVISED BY: J. Goldschmidt APPROVED BY: R. Goluch SUPERSEDES: 1606 - June 2016 PRINTED COPIES OF THIS DOCUMENT MUST BE VERIFIED FOR CURRENT REVISION
3、 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 applicability of regulatory
4、 limits prior to use. 1.0 APPLICATION This specification defines test procedures and cleanliness requirements of finished components ready for assembly. Components ready for assembly have been thoroughly cleaned to remove foreign debris remaining on or inside the parts after manufacture and/or parts
5、 as-received at the assembly plant. 1.1 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. 2.0 SCOPE This specification covers general requirements, property and p
6、erformance requirements, identification, quality, packing and shipping, and source approval and quality control requirements. 3.0 CONTENTS PAGE REFERENCE DOCUMENTS 1 REQUIREMENTS 2 QUALITY 5 SOURCE APPROVAL AND QUALITY CONTROL 5 SHIPPING AND HANDELING 6 DESIGNATION ON DRAWINGS 6 TECHNICAL INFORMATIO
7、N 6 4.0 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 ISO 9001 or TS-16949 EMD 991 ISO 16232-7 NAVISTAR Supplier Packing a
8、nd Shipping Std. D-13 ISO 4406 ISO 16232-10 NAVISTAR Engineering Design Std. A-16 ISO 4407 SAE J1726 NAVISTAR MPAPS B-50 ISO 16232-3 SAE J2064 CFR Title 29, Part 1910 ISO 16232-6 NUMBER: MPAPS F-2 TITLE: Fluid System Cleanliness Requirements REVISION: 1709 This document is restricted and may not be
9、sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2017 by Navistar, Inc. SEPTEMBER 2017 Page 2 of 7 5.0 REQUIREMENTS 5.1 Components The five levels of component cleanliness defined below are general
10、ly specified for the following types of applications and components: Level I: Component surfaces in contact with high pressure fuel or oil system (EMD 991 Level AA) Level II: Component surfaces in contact with filtered lubricating oil or filtered fuel (EMD 991 Level A) Level III: Internal surfaces o
11、f Intercoolers, Intake piping and component surfaces in contact with lubricating oil, inlet air, and exhaust gas (EMD 991 Level B) Level IV: HVAC A/C Hose Assemblies Level V: Component surfaces in contact with cooling water (EMD 991 Level C) Specified applications will appear as a noted requirement
12、on individual part drawings. Finished components shall meet the following cleanliness requirements as shown in the table below when tested according to the procedure defined in this specification. Components containing ferrous material shall exhibit maximum residual magnetism of 0.0005 Tesla (5 Gaus
13、s). This is low enough to preclude the adherence of fine metallic particles. Cleanliness Level Level I Level II Level III Level IV Level V Max containment weight per unit surface area 2.0 mg per 15.5 in2 (0.01 m2) up to 15 mg max per passage 2.5 mg per 15.5 in2 (0.01 m2) up to 15 mg max per passage
14、3.0 mg per 15.5 in2 (0.01 m2) up to 25 mg max per passage 3.0 mg per 15.5 in2 (0.01 m2) up to 25 mg max per passage for 5.0 mg per 15.5 in2 (0.01 m2) up to 50 mg max per passage X 0.012 in (300 Micron) 0.048 in (1200 Micron) 0.048 in (1200 Micron) 0.048 in (1200 Micron) 0.08 in (2000 Micron) Y 0.006
15、 in (150 Micron) 0.02 in (500 Micron) 0.048 in (1200 Micron) 0.048 in (1200 Micron) 0.08 in (2000 Micron) Z 0.006 in (150 Micron) 0.006 in (150 Micron) 0.008 in (200 Micron) 0.008 in (200 Micron) 0.008 in (200 Micron) Levels I, II III and V: Up to 4 particles* max per passage may exceed “X” dimensio
16、n Level IV No particle* may exceed any dimension shown All Levels: No particle* may exceed the Y or Z dimensions shown. TABLE 1: COMPONENT PARTICLE SIZE REQUIREMENTS * Particles for dimensional analysis include abrasive particles such as sand, scale, cleaning shot, weld slag and spatter, machining c
17、hips, or particles not easily broken with a probe. Maximum particle size applies to length, width, or thickness. NUMBER: MPAPS F-2 TITLE: Fluid System Cleanliness Requirements REVISION: 1709 This document is restricted and may not be sent outside Navistar, Inc. or reproduced without permission from
18、Corporate Technical Standards. Suppliers are required to assume all patent liability. 2017 by Navistar, Inc. SEPTEMBER 2017 Page 3 of 7 5.2 Method of Test The procedure and apparatus used are described in SAE J1726. A basic procedure based upon the SAE method is listed below and may be used for conv
19、enience. 5.2.1 Apparatus 5.2.1.1 Millipore Filter Assembly 5.2.1.2 Vacuum Filtering Flask 5.2.1.3 5-micron and 0.5-micron Millipore Filter paper. 5.2.1.4 Suitable Solvent, such as n-pentane, hexane, petroleum ether, or a clean wash solution at same concentration as washer using deionized water. 5.2.
20、1.5 Pressure tank with filter (similar to Millipore Model # XX6700L05) 5.2.2 Procedure: Method 1 5.2.2.1 Wash all apparatus carefully to avoid introducing extraneous contaminants. 5.2.2.2 Clean the exterior of test components as necessary to avoid introducing extraneous contaminants. 5.2.2.3 Pre-fil
21、ter the solvent to be used through a 0.5 micron Millipore filter paper. Store the filtered solvent in a clean container until it is used. 5.2.2.4 Dry a 5 micron Millipore filter (with grid) in an oven at 100C (212F) for 15 minutes. Cool to room temperature and weigh to the nearest 0.1 mg. 5.2.2.5 Th
22、oroughly flush the designated test surfaces with the filtered solvent, carefully collecting the solvent and debris into a clean beaker or container. 5.2.2.6 Pass this collected mixture through the 5-micron filter from Step 4, using the Millipore filter assembly, the vacuum filtering flask, and a vac
23、uum source. The used solvent may be discarded or refiltered through a 0.5 micron Millipore filter for reuse. 5.2.2.7 Remove the filter paper from the filter assembly. Dry in an oven at 100C (212F) for 15 minutes, cool in a desiccator, and reweigh to the nearest 0.1 mg to determine if the contaminant
24、 weight requirement is met. 5.2.2.8 Using optical magnification equipment, examine the recovered debris to determine if the particle size limitation has been met. 5.2.3 Procedure: Method 2 (ISO 16232-3) 5.2.3.1 Equip the test liquid dispenser with one or more spray nozzle(s), suitable for the surfac
25、es to be pressure rinsed. 5.2.3.2 Adjust the pressure of the test liquid to obtain a jet of sufficient power to remove and transport the particles from the controlled surfaces without degrading or dissolving the surface material of the component. 5.2.3.3 Rinse the controlled surfaces carefully with
26、test liquid sprayed on through the nozzle, ensuring that the whole controlled surface has been swept by the jet in order to extract the particles from the component(s). Collect the extraction liquid in either a single or several sampling containers. 5.2.3.4 Collect all recovered extraction liquids a
27、nd particles. Carefully rinse the collection equipment and collect all of the accumulated particles in a clean sampling container. 5.2.3.5 Analyze the extraction liquid in accordance with ISO 16232-6 (gravimetric analysis) or (particle sizing and counting) ISO 16232-7 and label the result obtained a
28、s S1. 5.2.3.6 Repeat 5.2.3.3 to 5.2.3.5 twice more on the same component, using, when necessary, a different container for each extraction liquid volume and label the result obtained as S2 and S3. NOTE: The extractions should be made directly one after the other. NUMBER: MPAPS F-2 TITLE: Fluid Syste
29、m Cleanliness Requirements REVISION: 1709 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. SEPTEMBER 2017 Page 4 of 7 5.2.3.7 Valid
30、ate the contamination extraction procedure to ensure its efficiency as follows: a) For each of the three samples analyzed in 5.2.3.5 and 5.2.3.6, establish the total mass of contaminants and/or the total number of particles. For the particle count, this is applicable to the total number of particles
31、 larger than the smallest particle size specified in the inspection document. This particle size shall be chosen to enable counting significant numbers of particles; b) Divide the result of the last sample (S3) by the sum of all the values obtained in 5.2.3.7 a); c) If the value obtained is less tha
32、n or equal to 10%, the end-point is reached and the extraction is completed. NOTE 1: This procedure enables the extraction curve to be drawn and the end-point (u 0.10) to be demonstrated (see Figure 1). NOTE 2: The cleanliness level of the component is the sum of the extractions. NOTE 3: In some cas
33、es, (for example: a very low contamination level, difficulties in extracting particles, inappropriate blank level, etc.) the extraction curve may not be of the form seen in Figure 1. If this is the case, it is ensured that all extraction parameters have been properly investigated. d) If the value ob
34、tained is 0.10, a further extraction is necessary. Repeat stages 5.2.3.3 to 5.2.3.7 until the last sample (Sn) produces a result u 0.10 of the total of the whole samples ( 10100 =1 ) 5.2.3.8 If six extractions have been performed without reaching a value u 0.10, then the extraction parameters are no
35、t suitable and shall be modified. Then repeat operations 5.2.3.3 to 5.2.3.7 with new parameters on a new component. 5.2.3.9 If this criterion is not fulfilled, set up a new extraction protocol and validates it according to 5.2.3 or apply another extraction method as defined in ISO 16232-2, ISO 16232
36、-4 and ISO 16232-5. FIGURE 1: EXAMPLE OF EXTRACTION CURVE 5.3 Particle Count Method Used for Components That Contact Diesel Exhaust Fluid (DEF): All connections and lines to and from the dosing supply module must be internally clean when assembled and meet the cleanliness specifications in Table 2 u
37、sing the ISO 16232 test method per section 5.2.3. Cleanliness shall be classified and expressed in terms of particle size (per ISO 16232-7) distribution (per NUMBER: MPAPS F-2 TITLE: Fluid System Cleanliness Requirements REVISION: 1709 This document is restricted and may not be sent outside Navistar
38、, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2017 by Navistar, Inc. SEPTEMBER 2017 Page 5 of 7 ISO 16232-10) with limits as noted in Table 2. Fibers and fluffs are long thin particles that can flow through filter m
39、edia and plug dosing components downstream and should not contaminate component surfaces that contact DEF. To avoid contamination by fibers and fluffs, the use of towels, paper, or cloth to clean components is prohibited. TABLE 2: PARTICLE-COUNT-METHOD REQUIRMENTS FOR INTERNAL SURFACES OF DOSING SUP
40、PLY MODULES THAT CONTACT DIESEL EXHAUST FLUID ISO 16232-10: CCC= G7/H6/ I5/J4/K00 Size Class G H I J K Cleanliness level 7 6 5 4 00 Particle size (um) 150 1000 Number of Particles* 130 64 32 16 = 0 * These limits are acceptable for particles exclusive of any fibers and fluffs. 5.4 Additional Procedu
41、res; Requirements In addition to the general procedures outlined above, the following detailed procedures must be developed and maintained by the plant laboratory for each component to be tested. These procedures must include: 1. Indicate surfaces and passages to be flushed. 2. Total area of surface
42、s and passages to be flushed. 3. Visual examination, if required. 4. Flushing method including quantity of solution, exposure time, and any special apparatus required. Use of solution will require additional step of establishing a standard weight for the dried filter paper after soaking with solutio
43、n to compensate for residue that will remain on the filter paper. 5. Specific requirements to be checked and reported for each component being evaluated, i.e., one or more of the specific requirements for maximum particle size and containment weight. 6. Information to be included in the report. 6.0
44、QUALITY Components that meet the application as described in section 5.3 shall meet the level of cleanliness specified by section 5.3 and Table 2. All other products supplied shall meet the level of cleanliness specified per application as shown in section 5.1 and Table 1. 7.0 SOURCE APPROVAL AND QU
45、ALITY CONTROL 7.1 Supplier Requirements All suppliers to Navistar are required to be registered to ISO 9001 Quality System Requirements. Navistar will also accept TS-16949 registration as long as the supplier can also fulfill all AIAG PPAP (Production Part Approval Process) documentation and approva
46、l requirements. Suppliers must maintain their certification with an accredited registrar and must furnish copies of registration certificates to their Corporate Buyer upon request. NUMBER: MPAPS F-2 TITLE: Fluid System Cleanliness Requirements REVISION: 1709 This document is restricted and may not b
47、e sent outside Navistar, Inc. or reproduced without permission from Corporate Technical Standards. Suppliers are required to assume all patent liability. 2017 by Navistar, Inc. SEPTEMBER 2017 Page 6 of 7 7.2 Approval Parts supplied against contracts or purchase orders citing this specification shall
48、 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, construction, color, or labeling of the product are require
49、d, the supplier shall notify Materials Engineering and 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 updated Material Safety Data Sheet(s) (MSDS), in accordance with CFR Title 29, Part 1910 sha
