Depending upon the method used, there are differing sample sizes. In some cases, even micro-tensile testing can be done. I would recommend contacting manufacturers/venders of such testing equipment.

Thank you dear Var St. Jeor

Respected sir, ASTM D 638 for FRP composites

Thank you dear Akula Komuraiah

I found out that for hyper elastic materials such as silicone rubber, ASTM standard for preparing tensile test specimen is D638 type IV and for composite materials is D3039 for rectangular shape( E.g. E-glass/epoxy composite ) and D638 for dumbly specimens ( why two standards ???). And for fabrics such as E-glass, it is D5035.

Hello Sina,

Google these following standards:

Astm D638

Astm D3039

Thank you dear Pouya Rajaee