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CS 25.793 Floor surfaces

Large Aeroplanes (CS-25) · CS-25 · EAR revision 26 Jan 2023

IRImplementing rule

CS 25.793Floor surfaces

(See AMC to CS 25.793 and 25.810(c)) The floor surface of all areas, which are likely to become wet in service, must have slip resistant properties.

[Amdt 25/17]

IR · CS 25.793 — CS-25 · ED Decision 2015/019/R · CS-25 Easy Access Rules · EAR revision 26 Jan 2023

AMCAcceptable means of compliance

AMC 25.793and 25.810(c) Floor surfaces

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The slip-resistant properties of floor surface material should be tested wet with the type of slippery liquid expected during operation. In addition, dry testing should also be conducted to provide reference friction values. In all the test conditions, the dynamic coefficient of friction (DCOF) should be at least 0.45. The following standard methods, using rubber and leather test devices, are acceptable (within their limitations) to conduct the testing: Military Specifications MIL-W-5044B (dated 24 February 1964) and MIL-W-5044C (dated 25 August 1970), titled ‘Walkway Compound, Nonslip and Walkway Matting, Nonslip’, DIN 51131:2014-02, titled ‘Testing of floor coverings - Determination of the anti-slip property - Method for measurement of the sliding friction coefficient’, ISO 8295:1995, titled ‘Plastics - Film and sheeting - Determination of coefficients of friction’, EN 13893:2002, titled ‘Resilient, laminate and textile floor coverings - Measurement of dynamic coefficient of friction on dry floor surfaces’, ANSI/NFSI B101.3-2012, titled ‘Test Method for Measuring Wet DCOF of Common Hard-Surface Floor Materials’.

[Amdt 25/17]

[Amdt 25/26]

AMC · AMC 25.793 — CS-25 · ED Decision 2020/024/R · CS-25 Easy Access Rules · EAR revision 26 Jan 2023

All rules in SUBPART D – DESIGN AND CONSTRUCTION

Consolidated from the EASA Easy Access Rules (revision 26 Jan 2023, extracted 17 Aug 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.

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