Flexural Test Methods for Plastics: ISO 178 and JIS K 7171 - Specs

Recommended Specimen

ISO 178 and JIS K7171 Specimen and Fixture Dimensions

Specimen length,l

80 mm

Specimen width,strong

10 mm

Specimen thickness,h

4 mm

Punch radius,R1

5 mm

Support radius,R2

5 mm

Distance between supports,L

16h

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3-Point Bend Test Fixture

ISO 178 and JIS K7171 Specimen and Fixture Dimensions

Specimen length,l

-

Specimen width,strong

-

Specimen thickness,h

h> 3 mm

Punch radius,R1

5 mm

Support radius,R2

5 mm

Distance between supports,L

16h

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3-Point Bend Test Fixture

ISO 178 and JIS K7171 Specimen and Fixture Dimensions

Specimen length,l

-

Specimen width,strong

-

Specimen thickness,h

h≦ 3 mm

Punch radius,R1

5 mm

Support radius,R2

2 mm

Distance between supports,L

16h

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