BS ISO 5025:2017 pdf download

BS ISO 5025:2017 pdf download.Reinforcement products — Woven fabrics — Determination of width and length
1 Scope
This document specifies a method for determining the width and length of a woven-fabric reinforcement in the form of a roll 1) .
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
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3.1 width
distance, measured perpendicular to the warp yarns, between the outside edges of the outermost warp yarns
4 Principle
The width, in centimetres, and the length, in metres, are determined using a calibrated ruler or other suitable measuring device.
5 Apparatus
5.1 Measuring device (for example a ruler), with a length greater than the width of the fabric, graduated in millimetres. The permissible limit of error for the device shall not exceed 0,1 cm for measurements less than or equal to 150 cm and 0,15 % for measurements greater than 150 cm.
5.2 Measurement equipment, capable of measuring the fabric length with a maximum permissible error not exceeding 1 % of the full length measured. For in-line use, measurement shall be made on flat running fabric without slippage. A ruler or a drum linked to a counting device may be acceptable systems, depending on the roll length. The determination of the length of a roll of fabric may be influenced by the tension to which the fabric is subjected during measurement. The measuring device shall be calibrated taking this tension into account and the fabric specification shall be written accordingly.
6 Sampling, type of test specimen and number of test specimens
For lot acceptance, the number of elementary units 2) to be examined, and possibly the number of determinations to be performed within each elementary unit, shall be as defined either in the product specification or by the person ordering the test.
For the determination itself, the test specimen is, in this case, one roll of fabric.
7 Procedure
7.1 General
Conditioning of the fabric is not necessary.
7.2 Width
Using the measuring device (5.1), determine to the nearest 0,1 cm the width as the average of two measurements separated from each other by at least 100 cm.
Carry out these measurements at the outer end of the roll unless there is evidence of damage or distortion of the fabric, in which case unroll sufficient fabric to ensure representative measurements.The fabric specification or the person ordering the test may require additional determinations at other places within the roll.
The overall width, i.e. including the fringes, may also be determined by agreement between the interested parties.