This standard specifies the test principles, test equipment, test specimens, test conditions, test procedures and result calculation, etc. for four aging property tests of glass fiber reinforced plastics, i.e., atmosphere exposure, damp heat, water resistance and accelerated water resistance.
This standard is applicable to the evaluation of influence of atmosphere exposure on the appearance and physical or mechanical properties of glass fiber reinforced plastics at the state without applied stress and under the steady or alternating damp heat condition as well as under aqueous medium condition.
2 Normative References
The following standards contain provisions which, through reference in this standard, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding corrections to), or revisions of, any of these publications do not apply. However, the parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to applies.
GB/T 1446 The Generals of Test Methods for Properties of Fiber-reinforced Plastics
GB/T 1449 Fibre-reinforced Plastic Composites - Determination of Flexural Properties
3 Terminologies and Definitions
For the purposes of this standard, the following terminologies and definitions apply.
3.1
Natural weather aging
It refers that the material is installed at fixed angle or on an experimental bench of which the angle seasonally changes and is exposed in natural environment for a long term. Such kind of exposure generally is used for evaluating the influence of environmental factor on various properties of material.
3.2
