標準號：BS DD CEN/TS 14689-2006
中文標準名稱：皮革.物理和機械試驗.膨脹、蠕變和松弛度測定
英文標準名稱：Leather - Physical and mechanical tests - Determination of bagginess, creep and relaxation
標準類型：Y46
發布日期：2006/7/31 12:00:00
實施日期：2006/7/31 12:00:00
中國標準分類號：Y46
國際標準分類號：59.140.30
引用標準：EN ISO 2418;EN ISO 2419;EN ISO 7500-1
適用范圍：This Technical Specification specifies a method of determining the bagginess of leather together with its creepand stress relaxation properties. It is applicable to all non-rigid leathers. e.g. shoe upper leather, upholsteryleather, leathergoods leather and apparel leather. Leather is a viscoelastic material and, upon removal of anyapplied force, only a proportion of the extension observed is recovered. Even some time after removal of theforce there is some degree of permanent deformation which is known as the retained set or bagginess of theleather. Due to the nature of the test method described below it is also possible to obtain a measure of thecreep and stress relaxation properties of leather. Although the creep index quoted is not obtained via the truedefinition of creep, it will however provide a valuable comparative indication of this property in leather.