BS EN 1269 pdf free download
BS EN 1269-2019 pdf free download.Textile floor coverings — Assessment of impregnations in needled floor coverings by means of a soiling test.
This document specifies two methods for the evaluation of impregnations or other treatments in needled floor coverings by means of a soiling test.
2 Normative references
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.
EN ISO 139, Textiles – Standard atmospheres for conditioning and testing (ISO 139)
EN ISO 9405:2017, Textile floor coverings – Assessment of changes in appearance (ISO 9405:2015)
ISO 105-A02, Textiles — Tests for colour fastness — Part A02: Grey scale for assessing change in colour
ISO 565, Test sieves — Metal wire cloth, perforated metal plate and electroformed sheet — Nominal sizes
of openings
ISO 1957, Machine-made textile floor coverings — Selection and cutting of specimens for physical tests
ISO 4918, Resilient, textile and laminate floor coverings — Castor chair test
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
4 Principle
In both tests a fixed quantity of standard artificial soil is scattered over the surface of the specimens which is also subjected to the rolling action of castors or of tetrapod feet for a specified time. After vacuum cleaning, the degree of colour change is assessed by comparing the contrast between treated and untreated test specimens with the contrast of the grey scale.
Depending on the type of apparatus available, either method A or method B can be used.
5 Apparatus
5.1 Method A
5.1.1 Castor chair apparatus
As described in ISO 4918, with a total load of 60 daN.
5.1.2 Soil distributor
The soil distributor uses two sieves, one inside and resting on the other to distribute the soil evenly on the part of the circular specimen that is subjected to the wear action of the castors. The whole distributor is placed vertically above the specimen with the sieves in the horizontal position.
The soil is placed in the inner sieve which is vibrated relative to the larger outer sieve thereby achieving even distribution of the soil on the specimen below the two sieves. The mesh size of both sieves is 0,5 mm (module 31 of ISO 565). The base of each sieve (each of which has walls) is in the shape of a regular trapezium in order to correspond to a sector of the treated area of the test specimen. The outer (lower) sieve has following base dimensions: — distance between the parallel sides: 220 mm; — length of the parallel sides: 100 mm, 45 mm. Its underside is 40 mm above the specimen. The dimensions of the inner (upper) sieve are not specified but shall be smaller than the base sieve to permit movement relative to the lower sieve.
5.2 Method B 5.2.1 Drum A rigid cylindrical drum with bottom and lid shall be used. The inner diameter is (205 ± 5) mm and the inner height of the drum is (200 ± 10) mm. The drum is made of polyvinylchloride (PVC), with a thickness of at least 6 mm. The bottom and lid are attached to the wall by appropriate means. The lid of the drum is preferably made of transparent material (e.g. Polymethylmethacrylate). 5.2.2 Tetrapod A tumbler consisting of a central metal sphere with four outer feet arranged in the shape of a regular tetrahedron. Each foot is covered with a spherical polyurethane cap. In operation the tetrapod tumbles inside the rotating drum so that the feet impact on the test specimen lining the drum.BS EN 1269 pdf download.
