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Physical & Mechanical Testing
These tests are used to qualify/quantify the physical and/or mechanical characteristics of raw materials and/or molded parts.
CRT has provided links (as shown below) of the most common tests used in the plastics industry. These links explain common tests in a more simplified format. Please click on the links below to review the most common tests used by Plastics professionals.
Should you need additional information, please contact us directly at (714) 283-2032. You may fax a request for a proposal at (714) 283-1365.
| Test | Test Method | No. Specimens | Amt. Needed |
|---|---|---|---|
| Adhesion Bond Strength | ASTM D 413/CRT | call | call |
| Ash Content | ASTM D 817/CRT | 2 | 227g |
| Ash Content for Thermoplastics | ASTM D 5360 | 2 | 227g |
| Ash Content of Rubber Chemicals | ASTM D 4574 | 2 | 227g |
| Bond/Cohesion Strength | ASTM D 952 | 5 | call |
| Change in Length | ASTM D 1460 | - | call |
| Chemical Resistance | ASTM D 543/CRT | 10- | call |
| Classifying Visual Defects in Thermosets | ASTM D 2562 | - | call |
| Classifying Visual Defects in Laminates | ASTM D 2563 | - | call |
| Classifying Visual Defects in Pultrudeds | ASTM D 4385 | - | call |
| Compression Molding | Fed. Std./CRT | 5- | 5 lbs. |
| Compression Properties | ASTM D 1621 | 3 | call |
| Compression Set | ASTM D 395 | 5 | call |
| Density from Melt Index Strand | ASTM D 2839 | 3 | call |
| Density/Bulk Factor | ASTM D 1895 | - | call |
| Dimensional Change under Accel. Cond. | ASTM D 1042 | 5 | call |
| Dimensional Change for Plastic Bottles | ASTM D 2911 | 2 | 2 bottles |
| Dimensions for PTFE Tubing | ASTM D 3295 | - | call |
| Dimensions for FEP Tubing | ASTM D 3296 | - | call |
| Dimensions for Pultruded Shapes | ASTM D 3917 | - | call |
| Dimensional Compliance | ASTM D 2122 | call | call |
| Elongation @ Specific Stress | ASTM D 1456 | - | call |
| Flexible Cellular Materials (latex foam) | ASTM D 1055 | - | call |
| Flexible Cellular Materials (rubbers) | ASTM D 1056 | - | call |
| Flexural Properties | ASTM D 790 | 5 | 6"x6"/3 |
| Flow Rates for PVC | ASTM D 3364 | 2 | call |
| Gardner Impact | ASTM D 3029 | 20 | 10 6"x6" |
| Gel Content | ASTM D 2765 | 2 | call |
| Heat Aging of Plastics without Load | ASTM D 3045 | - | call |
| Izod Impact, notched | ASTM D 256 | 5 | 6"x6" or 3 |
| Izod Impact, unnotched | ASTM D 4212 | 5 | 6"x6" or 3 |
| Micro-Tensile Properties of Plastics | ASTM D 1708 | 5 | 6"x6" or 3 |
| Moisture Content | CRT Method | 2 | 3"x3" |
| Oven Heat Stability of PVC Compounds | ASTM D 2115 | - | call |
| Particle Size (sieve analysis) of Plastics | ASTM D 1921 | - | call |
| Permanent Effect of Heat on Plastics | ASTM D 794 | - | call |
| Permeability of Containers to Reagents | ASTM D 2684 | - | call |
| Ply Adhesion | ASTM D 413 | 5 | call |
| Puncture Resistance | Fed. Method 2065 | 10 | call |
| Quality Control Programs | CRT Derived Methods | - | call |
| Resin-to-Laminate Ratio | CRT Method | 2 | 150g |
| Resistance of Plastics Film to Extraction | ASTM D 1239 | - | call |
| Resistance to Sulfide Staining | ASTM D 1712 | - | call |
| Resistance of PE to Stress Cracking | ASTM D 2951 | 10 | call |
| Rubber Products Specification | ASTM D 297 | - | call |
| Shear Strength by Punch Tool | ASTM D 732 | 5 | call |
| Shore Hardness | ASTM D 2240 | 5 | 2"x2"/2 |
| Specific Gravity | ASTM D 792 | 2-3 | 3"x3" |
| Staining of PVC by comp. materials | ASTM D 2151 | - | call |
| Tear Propagation | ASTM D 1938 | - | call |
| Tear Strength of Rubbers & Elastomers | ASTM D 624 | - | call |
| Tensile Properties | ASTM D 638 | 4 | 6"x6"/3 |
| Viscosity | ASTM & CRT Methods | 1 | 1 qt |
| Vulcanized Rubbers & Elastomers | ASTM D 412 | - | call |
| Void Content of Reinforced Plastics | ASTM D 2734 | 5 | call |
| Volatile Matter of Vynil Chloride Resins | ASTM D 3030 | - | call |
| Water Absorption | ASTM D 570 | 3 | 6"x6" |
| Weight & Shape Change | ASTM D 756 | 5 | call |
| Wetting Tension of Films | ASTM D 2578 | - | call |
| Wide Width Tension | ASTM D 638/D 4595 | 5 | call |
Should you need additional information about CRT Laboratories' Physical & Mechanical testing capabilities please contact us via our RFQ Form or call us at (714) 283-2032. You may fax a request for a proposal at (714) 283-1365.
CRT Laboratories, Inc.
1680 North Main Street
Orange, CA 92867
Email crtlabs@crtlabs.com
Phone: (714) 283-2032
Fax: (714) 283-1365
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