A W Hainsworth & SonsWest Yorkshire, GBScope: "...and mass per unit area ISO 3801: 1977 Weight - Small specimens (Condi..."UKAS1certView
BurberryWest Yorkshire, GBScope: "...2006 Weight per unit area ISO 3801 :1977 Tensile Strength BS EN ISO 13934-1; BS..."UKAS1certView