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PTC® Durometers / Shore® Hardness
PTC® Instruments manufactures durometers to meet or exceed
and offers A2LA calibration services
to ISO/IEC 17025 ANSI/NCSL, Z540-1.
There are 6 different durometer styles to choose from, in the Shore Hardness Scale
OOO and OOO-S
Typical Examples of Materials Tested with a Durometer
Our sales department (310-478-1134) will help you determine the correct durometer for your hardness test. We offer material testing to determine the correct durometer type and style for your application at no charge.
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DUROMETER TYPES AND SPECIFICATIONS
A Scale Durometers
EPDM rubber, neoprene, nitriles, polyurethane, printing rollers, silicone rubber...
B Scale Durometers
Skate wheels, printing platen, rubber, thermoplastic, and elastomers.
C Scale Durometers
Measure the Hardness of Medium Hard Rubber, Elastomers, and Thermoplastics.
D Scale Durometers
Measure the hardness of acrylic, epoxy, fiberglass, hard rubber, vinyl, cellulose acetate, and other similar materials. ASTM D2240
DO Scale Durometers
Measure the hardness of fireproof coatings, slasher beams, Pyrocrete®, and dense textile winding.
E Scale Durometers
E Scale Durometers test the hardness of Medium Density Textile Windings, Soft Rubber, Foamed Elastomers, Wound Threads, Yarn Packages.
M Scale Durometers
This system is designed specifically for measuring small cross section O-rings and thin pieces of rubber (not less than 1.25mm thick).
O Scale Durometers
Measure the hardness of soft printing rollers, nylon, rayon, orlon, artgume, and textile windings.
OO Scale Durometers
Type OO durometers measure the hardness of polyethylene foam roll, sponge rubber, very soft rubber.
OOO & OOO-S Durometers
Measure Cell Foams, Sponge Rubber, Viscoelastic polymers, Cellular and Gel-Like Materials
Asker C Scale Durometers
Measure Hardness of Soft Rubber, Sponge, Plastic Foam, Elastomers and similar materials. Asker C Durometers meet both JIS K7312 and SRIS 0101.
Asker F Scale Durometers
Measures the Hardness of Foam Rubber, Urethane Foam and Plastic Foams
Classic Style Durometers
ASTM Type A | B | C | D | OOO | SL | USG | Composite Foam
Ergo Style Durometers
ASTM Type A | B | C | D | E | O | OO | DO
Analog e2000 Durometers
ASTM Type A | B | C | D | E | O | DO
All PTC® digital durometers include an A2LA/NIST Traceable Calibration Certificate to ISO 17025 from PTC Metrology™
Composite Foam Durometer
Amusement Ride Safety Cushions, Vehicle Seats, Dashboards, Headrests, Armrests, Door Panels
Foam & Sponge Rubber
Model 302SL Durometer Measures the Hardness of soft materials such as foam rubber, sponge rubber, cellular material and gel-like materials.
Crab Shell Durometers
Developed with the Alaska Dept. of Fish and Game and the Canadian Department of Fisheries and Oceans.
Analog Pencil Durometers
ASTM Type A | B | C | D | DO | O | OO | Asker® C
Model 414 USG Durometer designed for drywall manufacturers in process control.
Specific Application Durometers
PTC® manufactures durometers for specific applications.
Durometer Calibration & Repair
If you need to return an instrument for calibration and/or repair, please fill out our
Return Authorization Form
. One of our specialists will email you an RMA number and instructions to send in your unit. Turn around time is usually 3 to 5 days from the date it arrives at PTC Metrology™
All Calibration Standards are traceable to the National Institute of Standards and Technology (NIST). Durometer calibration services and reports are provided by PTC Metrology™ and will meet your ISO, ANSI, MIL, DoD, EuroNorm and other international standards including DIN 53505, ISO 868 and ISO 7619.
Durometer Test Stands.
The test stands are designed to provide the ASTM recommended forces for use with PTC®'s Durometers and are also fully compatible with durometers of other manufacturers.
Any e2000 Millennium Style Durometer can be made as an "R" designation. The "R" designation specifies a presser foot diameter of 18 ± 0.5mm (0.71 ± 0.02in) in diameter, while the spring forces and indenter configurations remain the same. Please specify the "R" Type when ordering. US Patent D436,874