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O Scale Durometers
PTC® Shore O Durometer 201/O
Pencil Durometer ASTM Type O
Shore O Scale Analog Pencil Durometer
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PTC® Shore O Scale Pencil Durometer
Need a Durometer Stand? See Compatible Stands Below.
Add Accredited Durometer Certification to ISO 17025
No written calibration certificate required
Add NIST/A2LA Durometer Certification [+$160.00]
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Compatible Test Stands
Type O durometers measure the hardness of soft printing rollers, nylon, rayon, orlon, artgume, and textile windings.
This durometer's 1/2" diameter base (1.3cm) is the smallest base permitted by ASTM D2240 specifications. This allows it to be used in confined or hard to reach areas other durometers cannot test.
Specifications and Instructions
Accuracy of ±1 Point
1/2" Diameter Base
Max Hold Pointer Standard
Easy to Read 0 to 100 Point Dial
Includes Precision Aluminum Test Block
Accessory Test Stands Available
NIST/A2LA to ISO 17025 Certification Available
Meets or exceeds current ASTM D2240 Specs
Range (Type O) 0-100 points
Accuracy ± 1 point
Height 5.3" (13.2cm)
Width 2¼ " (5.7cm)
Depth 1.5" (1.3cm)
Base Diameter 0.5 in. (3.2 cm).
Shipping Weight 3 lb (1.4kg)
For a complete calibration check of mainspring, and visual and mechanical check of indenter, the instrument should be returned to PTC® (see Guarantee & Calibration Service) or refer to ASTM D2240 Specifications. PTC® recommends the unit be returned at least every 12 months for this check. For a quick field check, follow the guideline below. Under no circumstance should a test block be used as a standard to calibrate a durometer.
1. The pointer should read zero when no force is applied to the indenter of the durometer.
2. Hand hold the durometer and insert the indenter into the hole of the calibrated test block. Apply enough force to make firm contact between the top surface of the test block and the presser foot. The dial reading should agree with the value stamped on the check block (±1). Several tests should be made and the results averaged.
3. The indenter must protrude 0.098 to 0.100 inches below the presser foot.
4. When the indenter is fully displaced, the durometer should read 100 points. Use care as to not damage the tip of the indenter.
Hydraulic Durometer Stand 7000A
Deadweight Durometer Stand 476
Durometer Certification to ISO 17025
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Type A Test Block Kit 400A
PTC® Hydraulic Stand A | B | O Durometers 7000A
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PTC® Stand for A | B | E | O Pencil Durometers 476
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