[scope of application] Test for pinball breaking strength and expansion for nonwovens, elastic fabrics, and socks and glove products. [Related Standards] GBT 24218.5-2016 Test methods for textile nonwovens- -Part 5: Determination of mechanical penetration resistance (steel ball top breaking method) [test pattern] For isokinetic elongation (CRE) type, take the specified sample, using the instrument, and record the fracture strength and fracture elongation.