S. C. Dey & Co. Supplies Saybolt Viscometer with Chained Cork. S. C. Dey & Co. Is an ISO 9001 certified company. The Saybolt Viscometer with Chained Cork is made following the IS & ASTM standards. The Saybolt Viscometer with Chained Cork can be applied with Universal or Furol tubes. It is incorporated with an energy regulator for controlling the temperature of the oil bath. This Saybolt Viscometer with Chained Cork is also available with collection flask, tube nut wrench, orifices, etc.