May 2000 MAPTIS Presentation 1
SME initiative
Selection List Standard Fields(Header Information)
MTRL Code: 5 digit number assigned to a specific materialPrefix: odd for metals, even for nonmetals
Use Type: Functional or design “use” for material, i.e., adhesive, elastomer etc.
Designation: Manufacturer’s nomencalture for test material
Composition: Generic chemical makeup of material,i.e., epoxy, acrylic, etc.
May 2000 MAPTIS Presentation 2
SME initiative
Selection List Standard Fields(Header Information, Continued)
Generic ID: Three alpha character pairs (6 characters)1st pair: Use Type2nd pair: Primary Composition3rd pair: Minor Composition
Min F (K): Minimum service/operating temperature frommanufacturer’s literature
Max F (K): Maximum service/operating temperature frommanufacturer’s literature
Specification: Designated when material is qualified to a specification, can be multiple specs.
May 2000 MAPTIS Presentation 3
SME initiative
Selection List Standard Fields(Test Data Information)
NHB/Type: Number for specific test per NASA-STD-600101 = Upward Propagation04 = Wire Insulation Flammability06 = Odor
07 = Offgossging13 = Mechanical Impact17 = Promoted Combustion, etc.
Test NR: Distinct number assigned to each test series- Prefix identifies test facility, e.g.M = MSFC, W = WSTF
Cure NR: Number that correlates with cure sequence in cure table
May 2000 MAPTIS Presentation 4
SME initiative
Selection List Standard Fields(Test Data Information, Continued)
SMP NR Material Sample or specimen Number- 09 represents worst case record
R: Rating assigned to each specific material test
PCT OXY: Percent of oxygen in test chamber
TEMP: Test temperature
PRESS: Pressure in test chamber
THK: Thickness of material test specimen
Width: Width of test material sample
Length: Length of test material sample
May 2000 MAPTIS Presentation 5
SME initiative
Selection List Standard Fields(Test Data Information, Continued)
Sample Wgt: Mass of material test specimen
Class code: Material classification code:A = Material identification verifiedC = Material identification not verified
Description: D = Descriptive information about material specimen
Remark: R = Remark about test or configuration of specimen
Temp: Temperature in test chamber
May 2000 MAPTIS Presentation 6
SME initiative
Selection List Standard Fields(Test Data Information, Continued)
Obsolete/Discontinued: Identifies material that are no longer produced by manufacturer
Manufacturer/Supplier: The manufacturer and/orsupplier of material
Substrate Material: Identification of Material used as a substrate, e.g., aluminum,
fiberglassSUBSTR THK: Thickness of substrate material
Other fields exist that are specific to each test type, i.e., flammability, offgassing, etc.
May 2000 MAPTIS Presentation 7
SME initiative
Selection List Data Base Data Verification
• Material Identification– Assign Material Code
– Verify Manufacturer’s Designation
– Verify Use Type
– Verify Chemical Composition (Generic)
– Minimum/Maximum Service Temperature
– Establish Generic Identification Code
– Specification(s)
May 2000 MAPTIS Presentation 8
SME initiative
Selection List Data Base Data Verification
• Manufacturer Identification– Verify Manufacturer, not Supplier
– Address, Telephone and Facsimile Number
– E-mail Address
• New Test Data Temporarily Held in Preliminary Data Bases– Compare New Test Data with Historical Results
– Research Anomalies in Test Results
– Rating Criteria
May 2000 MAPTIS Presentation 9
SME initiative
Selection List Data Base – Data Verification
• Initial Data Review– Analyst Level
– Engineer/Analyst Level
• Final Review– NASA/NAS/CSC Team
– Data Evaluated• Data Consistency Verified
• Anomalies Resolved
• Decision Made to Move Data to Selection List or to Hold
May 2000 MAPTIS Presentation 10
SME initiative
Nonmetals Properties Data Base
• Current Version– Source – Manufacturer’s Literature – Sparsely Populated– Separate Data Base
• New Version– Source – Manufacturer’s Literature– 10 – 15 Major Properties– Selection List Data Base
• Adhesives – 85% complete• Also Working Lubricants, Coatings, Plastics, Elastomers,
Potting Compounds, Fabric, Tape, Film
May 2000 MAPTIS Presentation 11
SME initiative
Metals Properties Data Base
• Source Material– Mil-HDBK-5– Aerospace Structural Metals Handbook
• Alloys– Aluminum– Steel– Copper– Nickel/Cobalt– Titanium– Magnesium
• Separate Data Base
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