ACCREDITED ISO 17025
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Shore A Scale Durometers
PTC® Type A Half Point #306L.5
Shore A Scale Half Point Durometer #306L.5
ASTM Type A Durometer with Half Point Accuracy Model 306L.5
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PTC®'s new Half Point Durometer with a total accuracy of + 1/2 point
NIST/A2LA to ISO 17025 Certification included with this durometer.
Add a 1kg Load Weight or Durometer Stand
Add 1 kg Load Weight Model 441
Provides a constant load for hand held measurements [+$175.00]
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Compatible Test Stands
PTC®'s new Half Point Durometer has a total accuracy of
1/2 point for the most stringent material testing. The significant advances in polymers which are materials with characteristic mechanical and physical properties controlled by the structure and the method synthesis make this certified durometer the ultimate working lab durometer.
A written calibration certificate NIST/A2LA to ISO 17025 is included with this durometer.
A top knob with 8-32 threads permits both easy handheld use and attachment to test stands or the accessory
Model 441 1kg Constant Load Deadweight.
The Model 441 will allow even more consistent measurements when taking readings.
306L.5 Half Point Durometer
How to use an ASTM Type A Durometer
Max Hold Pointer Standard
Easy to Read 0 to 100 Point Dial
Accessory Test Stands Available
1kg Constant Load Weight Available (Model 441)
NIST/A2LA to ISO 17025 Certification Included
Includes Precision Aluminum Test Block
Accuracy of ±1/2 Point
Height 4 in. (10.2 cm)
Width 2-1/4 in. (5.7 cm)
Depth 1-3/4 in. (4.4 cm)
Weight 8 oz. (227 g)
Shipping Weight 3lb (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 base of the durometer. 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 base of the durometer.
4. When the indenter is fully displaced, the durometer should read 100 points. Use care as to not damage the tip of the indenter.
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PTC® Constant Load Weight 1kg #441
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