Home  >  All Standard  >  ISO  >  EN ISO 2307:2010Fibre ropes — Determination of certain physical and mechanical properties

EN ISO 2307:2010Fibre ropes — Determination of certain physical and mechanical properties

Friday 17th November 2017 Back to list

EN ISO 2307:2010Fibre ropes — Determination of certain physical and mechanical properties (ISO:2307-2010)

Scope

This International Standard specifies, for ropes of different kinds, a method of determining each of the
following characteristics:
⎯ linear density;
⎯ lay length;
⎯ braid pitch;
⎯ elongation;
⎯ breaking force.


Apparatus

5.1 Tensile testing machine, accommodating the assumed breaking force of the rope, which allows a
constant rate of traverse of the moving element, in accordance with 9.5, and measurement of the breaking
force to an accuracy of ±1 %.
Different types of tensile testing machines may be used:
⎯ pulley-type grip (“cors de chasse” testing machine);
pull test machine with bollards for eye splices;
⎯ wedge-grip testing machine.
In the case of a “cors de chasse” tensile testing machine, the diameter of the pulleys or catches holding down
the test pieces shall be equal to at least 10 times that of the rope being tested.
In the case of a testing machine with bollards, the diameter of the bollards passing through the eye-spliced
test pieces shall be at least twice the diameter of the rope being tested.

5.2 Balance, allowing measurement of mass to an accuracy of ±1 %.


Sampling


6.1 Sample size
When specified by the purchaser, a lot sample for acceptance testing shall be taken at random in accordance
with 6.4.
6.2 Sample unit
If required, test samples shall be taken from each shipping unit, in the lot in the number and the length
required to perform the specified tests. The test samples shall be included in the delivered mass or length.
As an alternative, the manufacturer's production and inspection records may be used, if agreed upon between
the purchaser and the manufacturer.
6.3 Composition of the batch to be sampled
Samples shall be taken from a homogeneous batch, i.e. consisting of ropes of the same size and same
dimensions and which have been subject to the same series of manufacturing operations and the same
control procedure.