JIS

Fibre reinforced plastic pipes
standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/1997

Pipes and fittings made of glass fiber reinforced thermosetting plastics (GRP) -- Definitions of terms relating pressure, including relationship between them, and terms for installation and jointing
standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/1997

Plastics piping systems -- Glass-reinforced thermosetting plastics (GRP) pipes -- Determination of the apparent initial circumferential tensile strength
standard by Japanese Industrial Standard / Japanese Standards Association, 01/01/1998