BS ISO 20712-2:2007

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Beach safety flags
  4.1 General
  4.2 Meaning, function, shape and colour of
      beach safety flags
  4.3 Dimensions of beach safety flags
      4.3.1 Rectangular flags
      4.3.2 Conical flags
5 Beach safety flag material
  5.1 General
  5.2 Colorimetric and photometric properties
      of the material
  5.3 Physical properties of polyester material
      5.3.1 Mass per unit area
      5.3.2 Threads per unit length in woven
            polyester
      5.3.3 Numbers of wales and courses in
            knitted polyester
  5.4 Colour fastness of material
      5.4.1 Colour fastness to light
      5.4.2 Colour fastness to fresh water
      5.4.3 Colour fastness to salt water
      5.4.4 Colour fastness to wet and dry
            rubbing
      5.4.5 Colour fastness to weathering
  5.5 Strength
      5.5.1 Tensile strength of woven
            materials
      5.5.2 Bursting strength of knitted
            materials
6 Measurement of chromaticity coordinates and
  luminance factor
Annex A (informative) - Examples of colours

Describes requirements for the shape and colour of beach safety flags for the management of activities on coastal and inland beaches, to be used for giving information on wind and water conditions and other hazardous conditions, and to indicate the location of swimming and other aquatic activity zones extending from the beach into the water.

This part of ISO20712 specifies requirements for the shape and colour of beach safety flags for the management of activities on coastal and inland beaches, to be used for giving information on wind and water conditions and other hazardous conditions, and to indicate the location of swimming and other aquatic activity zones extending from the beach into the water. It also specifies the colorimetric and photometric properties and the physical properties, including strength and colour fastness, of the materials from which beach safety flags are to be made.

It is not applicable to flags for use on firing ranges or to flags for use to indicate water quality or to signalling used for maritime traffic.

NOTE The illustrations in this part of ISO20712 are as accurate as possible within the limitations of the printing process.