Condition of Floors: A concrete floor that had been diamond ground and coated.

The installation was carried out over an extended weekend period. A fourth day was required to lay the walkway in a contrasting colour. The preparation and installation were completed to schedule in four days.

Kittiwake selected the Elgood specified and installed a 2mm static dissipative floor to meet Kittiwakes strict ESD criteria.

Facts & Figures

  • Completion date: September 2005
  • Size of floor: 170 sqm

Needs

A floor for their ESD area to meet BS EN 61340-5-1:2001 for the protection of electronic devices.

The following is taken from a recent document by Static Safe Environments:

‘There is a very important change to the requirements for floors used for grounding personnel (primary grounding). The resistance limit to ground is specified in the new standard as less than 3.5 x 10^7 Ohms, including the resistance of the operative and footstraps/shoes. (BS EN 61340-5-1:2001, clauses 5.2.3 and Table 1).This is a technical recommendation, to ensure the protection of devices sensitive down to 100 v ESD levels.

This change is based on the view that floors with leakage resistance values at the upper end of the limit set out in BS EN 100015-1 (>7.5 X 10^5 and <10^9 Ohms) provide a discharge path that is too slow to guarantee that there is no accumulation of charge above 100V on moving people and trolleys.It is now recommended that a new floor covering be chosen, to comply with the revised recommendation, as best in terms of technical performance.'Whilst on site, various alterations were carried out for Kittiwake where their floor plan had been revised or required enhancing. [/tab] [tab]

Preparation

Dust free shotblasting was used to remove the existing coating.

Floor

Elgood Industrial Flooring outsourced the flooring material to meet the demands of the new ESD recommendation.

The floor has a free and glossy surface and is particularly suitable for laboratory conditions.

The system is comprised of a primer coat, a copper grid with a black conductive layer and the flow coat.

The colour of the floor is Pebble Grey Ral 7032. The Grass Green walkway was chosen from our range of stock colours.

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