This standard stipulates rainwater basins (hereinafter referred to as 'masu') and lids for use in residential areas, which are made of recycled plastic as the main material, with fillers and reinforcement materials added as necessary. do.
JIS A 5731:2002 history
2011JIS A 5731 AMD 1:2011 Recycled plastics inspection chambers and covers for rainwater (Amendment 1)
2002JIS A 5731:2002 Recycled plastics inspection chambers and covers for rainwater