DD CEN/TS 14689-2006
Leather — Physical and mechanical tests — Determination of bagginess, creep and relaxation
- 标准号
- DD CEN/TS 14689-2006
- 发布日期
- 2006年07月31日
- 实施日期
- 废止日期
- 无
- 中国标准分类号
- Y46
- 国际标准分类号
- 59.140.30
- 发布单位
- 英国标准学会
- 引用标准
- EN ISO 2418 EN ISO 2419 EN ISO 7500-1
- 适用范围
- This Technical Specification specifies a method of determining the bagginess of leather together with its creep and stress relaxation properties. It is applicable to all non-rigid leathers. e.g. shoe upper leather, upholstery leather, leathergoods leather and apparel leather. Leather is a viscoelastic material and, upon removal of any applied force, only a proportion of the extension observed is recovered. Even some time after removal of the force there is some degree of permanent deformation which is known as the retained set or bagginess of the leather. Due to the nature of the test method described below it is also possible to obtain a measure of the creep and stress relaxation properties of leather. Although the creep index quoted is not obtained via the true definition of creep, it will however provide a valuable comparative indication of this property in leather.