BS ISO 8729-1:2010 pdf free download.Ships and marine technology — Marine radar reflectors — Part 1: Passive type.
ISO 8729 specifies the minimum requirements for a radar reflector intended to enhance returns from small vessels as required by IMO Resolution MSC. 164(78).
ISO 8729-1:2010 concerns passive reflectors and gives specifications for the construction, performance, testing, inspection and installation of such radar reflectors.
It is recognized that small vessels, often made of glass reinforced plastic(GRP)，can be poor reflectors of radar signals. In situations where radar is the prime observation tool used by ships at sea, the International Maritime Organization(IMO) considers that it is essential that small vessels, considered in this context to be those under 150 gross tonnage, be equipped with a radar reflector to enhance their radar return and thus to improve their visibility to radar.
This International Standard specifies the minimum requirements for a radar reflector intended to enhance returns from small vessels as required by IMO Resolution MSC.164(78)
It provides the specification for the construction, performance, testing, inspection and installation of such radar reflectors.
4 Construction
4.1 Structure and materials
The materials used for the radar reflector shall be of sufficient strength and quality as to make the reflector capable of maintaining reflection performance under the conditions of stress due to sea states, vibration, humidity and change of temperature likely to be experienced in the marine environment and capable of withstanding the environmental conditions specified in 5.3.
Ferrous metals should not be used.

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