ISO 899-1:2017 PDF

Scope: This document specifies a method for determining the tensile creep of plastics in the form of standard test specimens under specified conditions such as those of pretreatment, temperature and humidity. The method is suitable for use with rigid and semi-rigid non-reinforced, filled and fibre-reinforced plastics materials in the form of dumb-bell-shaped test specimens moulded directly or machined from sheets or moulded articles. The method is intended to provide data for engineering-design and research and development purposes. Data for engineering-design purposes requires the use of extensometers to measure the gauge length of the specimen. Data for research or quality-control purposes may use the change in distance between the grips (nominal extension). Tensile creep can vary significantly with differences in specimen preparation and dimensions and in the test environment. The thermal history of the test specimen can also have profound effects on its creep behaviour (see Annex A). Consequently, when precise comparative results are required, these factors are intended to be carefully controlled. If tensile-creep properties are used for engineering-design purposes, the plastics materials are intended to be tested over a broad range of stresses, times and environmental conditions.

ISO 899-1:2017 Referenced Document

ISO 10350-1:2007 Plastics - Acquisition and presentation of comparable single-point data - Part 1: Moulding materials
ISO 11403-1:2014 Plastics - Acquisition and presentation of comparable multipoint data - Part 1: Mechanical properties
ISO 291:2008 Plastics - Standard atmospheres for conditioning and testing
ISO 472:2013 Plastics - Vocabulary
ISO 527-1:2012 Plastics - Determination of tensile properties - Part 1: General principles
ISO 527-2:2012 Plastics - Determination of tensile properties - Part 2: Test conditions for moulding and extrusion plastics
ISO 62:2008 Plastics - Determination of water absorption

2017 ISO 899-1:2017 Plastics - Determination of creep behaviour - Part 1: Tensile creep
2015 ISO 899-1:2003/Amd 1:2015 Plastics - Determination of creep behaviour - Part 1: Tensile creep; Amendment 1
2003 ISO 899-1:2003 Plastics - Determination of creep behaviour - Part 1: Tensile creep
1993 ISO 899-1:1993 Plastics; determination of creep behaviour; part 1: tensile creep