標(biāo)準(zhǔn)號：BS EN ISO 6721-1-2011
中文標(biāo)準(zhǔn)名稱：塑料.動態(tài)機(jī)械特性測定通則
英文標(biāo)準(zhǔn)名稱：Plastics. Determination of dynamic mechanical properties. General principles
標(biāo)準(zhǔn)類型：G31
發(fā)布日期：2011/6/30 12:00:00
實施日期：2011/6/30 12:00:00
中國標(biāo)準(zhǔn)分類號：G31
國際標(biāo)準(zhǔn)分類號：83.080.01
引用標(biāo)準(zhǔn)：ISO 291;ISO 293;ISO 294;ISO 295;ISO 1268;ISO 2818;ISO 4593;ISO 6721-2-2008;ISO 6721-3
適用范圍：The various parts of ISO 6721 specify methods for the determination of the dynamic mechanical properties ofrigid plastics within the region of linear viscoelastic behaviour. This part of ISO 6721 is an introductory sectionwhich includes the definitions and all aspects that are common to the individual test methods described in thesubsequent parts.Different deformation modes may produce results that are not directly comparable. For example, tensilevibration results in a stress which is uniform across the whole thickness of the specimen, whereas flexuralmeasurements are influenced preferentially by the properties of the surface regions of the specimen.Values derived from flexural-test data will be comparable to those derived from tensile-test data only at strainlevels where the stress-strain relationship is linear and for specimens which have a homogeneous structure.