Quality Assurance

With many years of manufacturing experience behind us, our products must, by now, have been installed in just about every environment imaginable. Our safety nosings and treads have provided improved pedestrian safety in areas ranging from light to heavy foot traffic, in food factories, off-shore platforms, railway stations, schools and on all internal and external stair types. Little wonder then that when it comes to the issue of quality, we feel it safe to say that our longevity is an endorsement of both product performance and customer satisfaction. We hope this remains one of the methods by which clients asses us, although we understand that for many a more formal method of assuring quality is required, which is why our Quality Management System is certified to ISO9001: 2000.

In addition to quality assurance, we offer anti-slip assurance in the form of independent test results on all of our infilling types: all have been subject to the pendulum/4S test and TM144 1999 (London Underground) with the results in each case being in excess of the HS&E recommendations for surface roughness. Indeed, in the instance of Carborundum, our most popular infilling material, tests confirm an extremely low potential for slip in dry, wet and even oily conditions.

All Treads products are tested to ensure that they fulfill (and preferably surpass) the minimum quality requirements.

Treads employs the services of SATRA Technology Centre (SATRA), a research and technology centre, employing over 180 scientific, technical and support staff across two sites in the UK and China. Founded as the Shoe and Allied Trade Research Association in 1919, it has since extended its expertise to cover other consumer product industry sectors including furniture, safety products, clothing, floorcoverings, leathergoods and fabric care. It is partly funded through membership, which includes 1,600 companies in over 70 countries. SATRA conducted two separate tests on Treads. SATRA performed two assessments on Treads to test for slip resistence:

Pendulum Method

SATRA has conducted an assessment of the slip resistance of a sample of Treads flooring. The sample has demonstrated a low slip potential under both wet and dry test conditions when tested using BS 7976-2:2002 Pendulum Method .

The method of test is intended to assess the potential of slipping for people walking on a flooring material.
A pendulum attached to a spring loaded foot fitted with a standard rubber slider referenced Slider 96
is allowed to swing so the slider contacts a dry wet test flooring over a set distance. The extent to which the pendulum fails to reach its release height on the overswing is determined as a measurement of the slip resistance. The procedure is carried out in three directions, in one principal direction, at 90 degrees to this and at 45 degrees to the principle direction.

During the assessment the surface roughness meter (Surtronic 3+) travelled across the surface of the floor
covering at ten different areas. The surface roughness meter travels over a 4mm distance and measures the maximum trough to peak height in five 0.8mm sections: the Surface Roughness Measurements (Rz) roughness is the average of the five rt values. The Treads sample average Roughness Measurement is 95.7Rz, which would suggest that the floor covering submitted for testing has a low slip potential in the wet conditions.

London Underground Method

SATRA has conducted an assessment of the slip potential of a number of samples of Treads flooring. The samples have satisfied the requirements of London Underground E6464 A2 Engineering Standard - Rolling Stock Floor Coverings.

Section 8.4 (SATRA TM144) Slip Resistance of profiled floors stipulates that the coefficient of friction value must not fall below 0.40 for more than 290mm traverse, taking into account a representative cycle from the centre of a 100mm trace commencing after the first 20mm of movement in all directions under test.

The method of test is intended to assess the potential of slipping for people walking on a
flooring material. It determines the coefficient of friction (CoF) between footwear outsoles and flooring surfaces under conditions simulating those experienced at the most critical parts of a typical walking step. In this instance a Rubber slider referenced Slider 96 (formally known as Four S Rubber) of diameter 76mm, is used to simulate a male shoe heel at the critical angle to the floor. Testing has been carried out with the slider at an angle of 5 degrees to the flooring.

Treads Stanley Mills Stonehouse Gloucestershire GL10 3HQ  t: 01453 828444 f: 01453 822002 e: info@treadsnosings