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Accredited by A2LA to ISO/IEC17025 and ANSI/NCSL Z-5401

Model 306L Type A Classic Style Durometer
All PTC Durometers are Made in the USA

Type A: For Soft rubber, Elastomers, Waxes, Printing Rollers

The model 306L is our most popular durometer and is built to meet or exceed current ASTM D2240, and ISO 868 specifications for Type A durometers. The 306L measures the indentation hardness of rubber, elastomers, and other rubber-like substances, such as neoprene, silicone, vinyl, nitrile, and butyl. It can also be used for soft plastics, felt, leather, and similar materials.

The durometer can be used either with a test stand, hand-held or with the constant load weight. Please refer to the stand selection guide for the appropriate accessories. The PTC® classic style Durometer comes complete with carrying case, test block and magnetic max hand.

PTC now offers the model 306L.5 Half Point Durometer. The ultimate for todays synthetic polymers with ±1/2 point accuracy.

 

Model 306L Type A Durometer
Classic Style

PTC Metrology is Accredited by A2LA to ISO/IEC 17025 and ANSI/NCSL Z540-1 for durometer calibration. NIST traceable certification is available for any durometer type covered by current ASTM D2440, ASTM F1957, ISO 868, ISO 7619, or DIN 53505 standards. The Calibration Report will include both "as received" and "as left" data on the force curve measurement. Durometer calibration includes: indenter geometry and extension, indicator linearity from 0 to 100, and mainspring force. Other durometer types, custom models, and durometers of any manufacture can also be certified by PTC Metrology.
Specifications & Dimensions
Specifications
PTC® Analog Classic Durometer 306L
Accuracy
±1 point
Max Hand
Magnetic Max Hand
Display
Dial Gauge 240°
Gauge Features
Reads Zero at Rest
Base Size
1.625" x 1" ( 4.13cm x 2.54cm )
Height
4" ( 10.2cm )
Width
2.25" ( 5.7cm )
Depth (Indicator)
1.75" ( 4.4cm )
Weight
8 oz.( 227g )
Certification
NIST Traceable/A2LA Accredited
Accessories
Test Stand Model 471 or 472
Meets or Exceeds
ASTM D2240, ISO 868
ASTM Types
ASTM Type A,B,C,D,OOO
Other Types
Asker Type C, JIS K6253 A or D & K6301 C
Classic Style Durometers
Model
Type
Material Selection Guide
Spring gf
Indenter Shape
A
Rubber, Elastomers
821 gf
35° Truncated Cone
B
Rubber Moderately Hard
821 gf
30° Cone
C
Rubber Medium Hard
4.53 kgf
35° Truncated Cone
D
Plastics, Hard Rubber
4.53 kgf
30° Cone
SL
Sponge Rubber
142 gf
1 cm2 Circular
OOO
Open Cell Foams
113 gf
1/2" Spherical Diam.
Accessories
1kg Deadweight Test Stand
Constaloader Automatic Test Stand
1kg Load Weight

 
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