GB/T 31334.5-2017Test methods for dipped canvas—Part 5: Tensile properties (English PDF)

Foreword

GB/T 31334 "dipped canvas test method" is divided into 6 parts.

--- Part 1: Adhesion strength;

--- Part 2: Warp curl and density;

--- Part 3: Stiffness;

--- Part 4: Dry heat shrinkage;

--- Part 5: Tensile properties;

--- Part 6: Square dry weight.

This section GB/T 31334 Part 5.

This section drafted in accordance with GB/T 1.1-2009 given rules.

1 Scope

GB/T 31334 provisions of this part will be made of fiber dipped canvas made into a certain size of the sample, the test of its breaking strength, fracture Elongation, constant load elongation and other tensile properties of the test method.

This section applies to the manufacture of fiber dipped canvas tensile test. Tensile properties of dipped cord fabric sheets made of fibers Tests and other dipped scaffold material tensile properties of sheet samples can also be used with reference to the test.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 6529 Textiles conditioning and testing standard atmosphere

GB/T 8170 rounded repair rules and limit values of the representation and judgment

GB/T 31334.2 Test methods for dipped canvas Part 2: Warpness and density

HG/T 2765.4 blue plastic indicator, color silicone and cobalt-free color silicone

3 Test principle

Under the specified test conditions, dipped canvas samples were clamped and fixed on a constant speed (CRE) type tensile testing machine with a constant pull Stretching speed Applied tensile force to the specimen until the specimen breaks. Read directly from the tensile testing machine or calculated by the tensile strength of the specimen, elongation rupture Length, constant load elongation and other tensile properties of data.

4 Instruments and tools