1、 FORD LABORATORY TEST METHOD BO 040-01 Date Action Revisions Rev. 02 2018 07 27 Revised See Summary of Revisions L. Rabideau, NA 2018 01 19 Revised Added additional time/temperature for floor consoles L. Schmalz, NA 2016 07 08 Released L. Sinclair, NA Controlled document at www.MATS Copyright 2018,
2、Ford Global Technologies, LLC Page 1 of 3 SHORT AND LONG TERM ENVIRONMENTAL TESTING Application This procedure is used to determine the dimensional stability, function and visual/tactile performance of a component after undergoing short term cyclic and/or long term heat exposure testing. Apparatus a
3、nd Materials Required Environmental Cabinet Capable of maintaining controlled temperature and humidity conditions to +/- 1 C and +/- 2% relative humidity. Oven As described in ASTM D573 Chemicals, materials, parts, and equipment referenced in this document must be used and handled properly. Each par
4、ty is responsible for determining proper use and handling in its facilities. Sample Preparation All parts shall be fully trimmed including all components packaged in the environment (eg. speakers, hardware, wiring, etc.) and assembled onto actual or representative production support foundations. Thi
5、s includes not only all attaching points, but also any boundary conditions that may restrict movement, unless otherwise specified by the responsible PD Engineer. The retention methods, attachments, and supporting garnish moldings (if any), shall be the same as proposed for production. Measurement Lo
6、cation 1. Every twenty centimeters and at the points of greatest movement between the twenty centimeter marks along the parts outside edges and internal openings or as defined by PD Engineering. Some parts may have specific measurement locations required by PD Engineering, which will override the 20
7、 cm required. Part specific measurement locations to be signed off by PD Engineering prior to test. 2. The “significant characteristics locations“ specified on the engineering drawing. 3. Unique requirements will be noted in the applicable performance specification. Measurement Technique The movemen
8、t at each measurement point shall be recorded in two directions: (1) in the x/y plane from the observers view, and (2) in the z-dimension direction into or out of the x/y plane from the observers view. The observers view shall remain consistent always viewing from the front side of the part. Room te
9、mperature is defined as 23 +/- 2C. If pre-evaluation or evaluation are performed outside of the room temperature range, record the temperature of the room in the test report. FORD LABORATORY TEST METHOD BO 040-01 Copyright 2018, Ford Global Technologies, LLC Page 2 of 3 Procedure A: Short Term Heat,
10、 Humidity and Cold Cycle 1. Visually evaluate the part before the test. Note any defects on the component prior to testing. 2. Measure the part and record the data at all specified locations at room temperature before cycling on the production support foundation or test fixture. Any visual defects/i
11、mperfections must be noted in the test report and signed off by PD Engineering for compliance. 3. Use test chambers with automated programmable test cycles for the listed test conditions below. Note that stages do not include ramp times to transition from level to level. Each specimen can have diffe
12、rent size, geometry, density, etc. which impacts ramp times; therefore, each transition period will vary in length of time. 4. Program the chamber as follows: 5 h at -30 +/- 2 C 30 min at 23 +/- 2 C and 50% R.H. 5 h at XX*+/- 2 C 30 min at 23 +/- 2 C and 50% R.H. 2 h at 50 +/- 2 C and 95 +/- 5% R.H.
13、 30 min at 23 +/- 2 C and 50% R.H. 5 h at -30 +/- 2 C 30 in at 23 +/- 2 C and 50% R.H. 5 h at XX* +/- 2 C XX* = The temperature identified by vehicle location in the material or performance specification. If not stated then use Table 1. 5. Evaluate per evaluation method. Procedure B: Long Term Heat
14、Exposure/Sun Load 1. Visually evaluate the part before the test. Note any defects on the component prior to testing. 2. Measure the part and record the data at all specified locations at room temperature before testing on the production support foundation or test fixture. Any visual defects/imperfec
15、tions must be noted in the test report, and signed off by PD Engineering for compliance. Program the chamber for given temperature and time using the temperature identified in the material or performance specification and time from Table 1. (Use the temperature from Table 1 if not stated in the mate
16、rial or performance specification. 3. Evaluate per evaluation method. FORD LABORATORY TEST METHOD BO 040-01 Copyright 2018, Ford Global Technologies, LLC Page 3 of 3 Table 1 Vehicle Location Examples of components Procedure A Procedure B Test Temperature Long Term (XX*) Horizontal or vertical parts
17、AT OR ABOVE THE BELT-LINE Pillars; upper quarter panels; hard instrument panels and window garnish moldings 100 +/-2 C 7 days at 100 +/-2 C Headliners 90 +/-2 C N/A Overhead Consoles 7 days at 90 +/-2 C Horizontal or vertical parts BELOW THE BELT-LINE lower quarter trim panels; glove box doors 90 +/
18、2 C 7 days at 90 +/-2 C Floor consoles and door panels 90 +/-2 C 7 days at 90 +/-2 C or 14 days at 80 +/-2 C Non-Sun Loaded Scuff plates and other non-sun loaded floor level parts 80 +/-2 C 7 days at 80 +/-2 C Evaluation The trimmed assemblies shall remain relatively unaffected by the exposure cycl
19、es during and after the tests as demonstrated by: 1. Visual Evaluationevaluate per ISO 105-A02 AATCC Procedure 1 also no excessive tackiness, loss in surface-grain, or surface-color, yellowing, wrinkling, distortion, blistering, delamination, blushing, hazing, milking, staining, waviness, or other o
20、bjectionable visual appearance. 2. Functional Evaluation No warping or distortion that will interfere with normal functional operations. 3. Dimensional Evaluation - no movement exceeding what is required on the Engineering drawing from the original installed position during or after the test. Report
21、ing 1. The test report shall include Procedure Test Condition Visual rating Functional rating (pass/fail) Dimensional measurements (before and after) 2. Example of the test result designation Procedure- (B) Long Term Heat Exposure Test Condition - Non sunload (80 C) Visual Evaluation AATCC Rating- 4
22、5 , no signs of visual degradation Functional Rating - Pass Dimensional measurements as required per the drawing / component or specification Revisions 2018 07 27 Changed headliner and overhead console from 100 C to 90C. 2018 01 19 Added alternate method for long term heat exposure for floor consoles.
