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PTC® Durometer Types and Specifications


TYPE

MODEL NO. ANALOG DUROMETER

MODEL NO. DIGITAL DUROMETER

FORCE

INDENTER DESCRIPTION

INDENTER IMAGE

APPLICATIONS

A

ASTM D2240

JIS K6253

ISO 868

201     

306L

408     

501A

211

511A

821 gf

Truncated Cone 35° Included Angle

Type A durometers measure the hardness of neoprene, EPDM rubber, polyurethane, printing rollers, silicone, white PVC and other similar materials.

B

ASTM D2240

201B     

306BL

408B    

501B

211B

511B

821 gf

Conical 30° Included Angle

Type B durometers measure the hardness of skate wheels, printing platen, rubber, thermoplastic, and elastomers.

C

ASTM D2240

202C

307CL

409C

502C

212C

512C

4.53 kgf

Truncated Cone 35° Included Angle

Type C test Hardness of Medium Hard Rubber, Elastomers, and Thermoplastics.

Asker C

SRIS-0101

601

603

604

611

855 gf

0.200" Spherical Diameter (5.08mm)

ASKER® C Durometers measure the indentation hardness of soft rubber, sponge and plastic foam, elastomers, and similar materials.

D

ASTM D2240

JIS K6253

ISO 868

202

307L

409

502D

212

512D

4.53 kgf

Conical 30° Included Angle

Type D is for determining indentation hardness of Pipeline Coating, Hard Rubber, Acrylic, Delrin, Kevlar, PVC, Nylon,

Lexan, and Epoxies.

M

ASTM D2240

1600-M

OS-3 Stand

DD-4-M

OS-3 Stand

78 gf

30° Included Angle

This system is designed specifically for measuring small cross section O-rings and thin pieces of rubber (not less than 1.25mm thick). Available in both analog and digital, the Type M comes with an Air Dampened Operating Stand.

DO

ASTM D2240

202DO

413

502DO

212DO

512DO

4.53 kgf

3/32" Spherical Diameter (2.38mm)

Fire Proof Coatings, (Carboline® Pyrocrete® 241), Moderately Hard Rubber, Medium Print Rollers, Elastomers and Dense Textile windings.

E

ASTM D2240

408E

501E

511E

821 gf

0.200" Spherical Diameter (5.08mm)

Type E is for Medium Density Textile Windings, Soft Rubber, Foamed Elastomers, Wound Threads, Yarn Packages.

O

ASTM D2240

201/O

410

501/O

211/O

511/O

821 gf

3/32" Spherical Diameter (2.38mm)

Type O durometers measure the hardness of soft printing rollers, nylon, rayon, orlon, artgume, and textile windings.

OO

ASTM D2240

(no analog max hand per ASTM)

203

411

511/OO

113 gf

3/32" Spherical Diameter (2.38mm)

Type OO durometers measure the hardness of polyethylene foam roll, sponge rubber, very soft rubber.

OOO

ASTM D2240

(no analog max hand per ASTM)

412

412L (with max hand, non-ASTM)

N/A

113 gf

1/2" Sperical Diameter (12.7mm)

Type OOO durometers measure the hardness of very soft materials, suit foams, and open or closed cells.

OOO-S

ASTM D2240

303

N/A

197 gf

1/2" Sperical Diameter (11.9mm)

Type OOO-S  Shore Durometer measures the hardness of viscoelastic polymers. Applications include motorcycle seats, medical pads and wheel chair cushions for pressure ulcer prevention.  Equestrian pads, gun recoil pads and cool gel mattresses.

CF

ASTM F1957

414CF

N/A

9.11 kgf

1/2" Sperical Diameter (12.7mm)

Model 414CF Type CF Durometer measures hardness of all generations of foam products: Freon blown types, water blown

types, and new composite foams.

SL

302SL

N/A

142 gf

1 cm2 - Circular (0.155in2)

The Model 302SL Foam & Rubber Durometer is a unique instrument that measures the hardness of soft materials such as foam rubber, sponge rubber, cellular material and gel-like materials.





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