Chrysler Laboratory Procedures, commonly shown with LP document numbers, are private automotive OEM laboratory and approval documents used in supplier and product-validation work. They are most often encountered when a lab needs to support Chrysler, FCA US, or Stellantis material and trim requirements.
In day-to-day testing, LP documents commonly connect with automotive trim, plastics, coatings, adhesives, and related durability or approval checks. The exact code matters because one LP document may describe a wear method, another a weathering or aging procedure, and another an approval process.
Chrysler Laboratory Procedures (LP)
LP documents sit inside a controlled OEM document system rather than a public consensus standards catalog. For buyers and lab teams, the practical question is usually what the exact LP code requires for specimens, conditioning, equipment, rating, and records.
That makes LP especially important in supplier-facing automotive materials work, where trim, plastics, coatings, and adhesives may need to satisfy both a material approval path and a method-specific test requirement.
Quick Definition
LP identifies Chrysler Laboratory Procedures: private OEM laboratory and approval documents associated with legacy Chrysler and FCA US requirements and accessed through Stellantis supplier systems.
Why LP Standards Matter in Testing
LP documents matter because they can define how materials are conditioned, how specimens are prepared, what equipment is used, how performance is judged, and what must be reported for supplier or engineering review.
For a lab, that directly affects machine selection, fixture details, environmental control, accessory needs, and the level of traceability required in the final report. Using the wrong LP document, or an incomplete reading of the designation, can lead to the wrong workflow entirely.
Common Materials or Application Areas Covered
LP procedures are most commonly associated with automotive material and trim validation work.
Soft trim materials: Fabrics, vinyl-coated fabrics, leather, carpet, and other interior or exterior trim constructions.
Automotive plastics: Interior and exterior plastics used where appearance, durability, or material approval must be controlled.
Coatings and finishes: Paint systems, coated surfaces, and related appearance or durability checks.
Adhesives and sealers: Bonding and aging workflows that support assembly durability and supplier approval.
Common Test Types
The LP family covers more than one kind of laboratory activity, so equipment needs can vary widely by document number.
Common workflows: Wear resistance, cleanability, weathering, heat aging, heat-humidity-cold aging, scratch and mar evaluation, bond strength checks, and material approval support.
Typical lab output: Comparative durability data, appearance ratings, pass-fail observations, conditioning records, and supplier documentation packages.
How to Read a LP Designation
LP designations should be read carefully and kept in their full published form.
Prefix: LP identifies a laboratory procedure document.
Core code: The following number and letter groups distinguish the specific procedure, as in LP-463KB-06-01.
Revision control: Current issue information may also appear inside the document as a change level and publication date, so the document number alone may not tell the whole revision story.
Practical takeaway: Small changes in the code can point to a different material class, approval workflow, or laboratory method, so the complete designation should always be confirmed before testing begins.
Featured Standards / Methods / References
Several LP documents are especially useful for understanding the kinds of workflows this family supports.
LP-463KB-06-01: Wear resistance of soft trim materials. This commonly points to oscillating abrasion or precision wear equipment, specimen templates, controlled conditioning, and visual result reporting.
LP-463KC-04-01: Cleanability of interior trim. This commonly connects with controlled soiling, cleaning agents, crocking accessories, and documented appearance assessment.
LP-463DB-16-01: Plastic material approval process. This supports a material qualification workflow rather than a single bench test.
LP-463DB-16-03: Soft trim material approval process. This is used when a trim material must move through a defined approval path tied to supplier and engineering requirements.
Standards / Methods by Application Area
LP documents are often easiest to understand by the application they support.
Interior trim and seating materials: Wear, cleanability, appearance change, and aging-related evaluation.
Plastic parts and surfaces: Material approval, scratch or mar behavior, and weathering-related workflows.
Coatings and bonded systems: Fluid resistance, aging, bond durability, and controlled approval activity.
Supplier qualification work: Approval-process LP documents help organize testing, documentation, and engineering acceptance steps.
Equipment Commonly Used with These Standards / Methods / References
The right equipment path depends on the exact LP document, the material under evaluation, and whether the requirement is a bench test or an approval workflow.
Common equipment: Abrasion and wear testers, xenon-arc weathering systems, environmental chambers, aging ovens, surface evaluation tools, and reporting systems.
Typical accessories: Specimen clamps, templates, abrasive media, crocking accessories, irradiance sensors, sample racks, temperature verification tools, and traceable reporting forms.
Common workflows: Soft trim wear testing, accelerated weathering, interior trim cleanability studies, heat aging, and supplier approval support.
Related Standards Organizations or Related Frameworks
LP documents are commonly used alongside other automotive and industry-standard frameworks, especially when suppliers serve multiple programs.
Stellantis / FCA material standards and specifications: LP procedures often connect with company material, process, and approval documents.
ASTM and SAE methods: These are frequently used to support material characterization or related automotive durability work.
Ford FLTM and GM / GMW procedures: These are comparable OEM method systems that buyers and labs often review when aligning equipment across multiple automotive customers.
Need Help Matching LP Requirements to Equipment?
If you are working from an LP designation, the exact document number should be checked before choosing a machine, fixture, or reporting package. Wear, cleanability, weathering, aging, and approval-process documents can require very different laboratory setups.
NextGen can help map LP requirements to practical equipment options, fixtures, accessories, and reporting tools that fit the material, the workflow, and the level of qualification involved.