Standard No.:	GB/T 3903.41-2019
Chinese Name:	鞋类 帮面和衬里试验方法 耐折性能
English Name:	Footwear—Test methods for uppers and lining—Flex resistance
Professional Classification:	Y78 Footgear
ICS Classification:	61.060
Issued by:
Issued on:	2019-08-30
Implemented on:	2020-03-01
Status:	VALID
Replace:	GB/T3903.41-2008 Footwear—Test methods for uppers and lining—Flex resistance
Language:	English
File Format:	PDF
Word Count:	6000 words
Price(USD):	180 (USD)
Delivery:	via email in 1-3 business day

1 Scope

This part of GB/T 3903 specifies a test method for determining the flex resistance of uppers and linings in order to assess the suitability for the end use.

This part is applicable to uppers and linings made of various materials.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

ISO 3696 Water for analytical laboratory use - Specification and test methods
ISO 5402-1:2011 Leather - Determination of flex resistance - Part 1: Flexometer method
ISO 17709 Footwear - Sampling location, preparation and duration of conditioning of samples and test pieces
ISO 18454 Footwear - Standard atmospheres for conditioning and testing of footwear and components for footwear

3 Terms and definitions

For the purposes of this document, the following terms and definitions apply.
3.1

flex resistance

resistance of a material to crack or otherwise fail at flexing creases
3.2

surface