ISO 18692-3:2020 pdf free

ISO 18692-3:2020 pdf free.Fibre ropes for offshore stationkeeping一High modulus polyethylene (HMPE)
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 1968, Fibre ropes and cordage一Vocabulary
ISO 18692-1:2018, Fibre ropes for offshore stationkeeping一Part 1: General specification
The number of samples from Table 2 shall be tested, and each sample shall be capable of meeting the requirements of 5.1 and of 5.2.
NOTE The measurements of the dynamic stiffness at end of bedding-in一and, when required, those of the quasi-static stiffness and the dynamic stiffness at several mean load level一are performed for design purposes only. There are no acceptance criteria on these parameters.
One sample shall be tested for creep properties in accordance with the test method in Annex B.This test needs not be performed where data are available from the previous qualification test of another rope (or a sub-rope of it) with the same design, material and method of manufacture of rope core, and a size not less than reference number 71.
In addition to data in ISO 18692-1:2018, A.2.3, the following information (extracted from a documented model of fibre creep properties based on test results) shall be made available by the fibre manufacturer to the rope manufacturer, covering:
a) creep rate (per cent divided by time unit) and allowable extension (%) (or allowable creep time),under a range of specific stresses (N/tex) and temperatures, to cover those expected in operation;
b) creep rate (per cent divided by time unit) under the tension [and corresponding specific stress (N/tex)] and at the temperature (°C) during rope creep test in accordance with Annex B;
c) creep rate in the conditions of fibre testing during production.
NOTE 1 The“creep rate” in this subclause refers to the creep rate in the so-called “steady state creep” regime (see Annex C and Reference [2]).
NOTE 2 Data of creep properties are used by the rope manufacturer (or by the purchaser) to evaluate the creep allowable life time of the rope (see Annex C).ISO 18692-3 pdf free download.