The Marsh funnel viscometer is an instrument used for daily measurement of the relative viscosity of drilling fluid (compared to water), manufactured according to American API standards. Both viscosity and gel strength involve the measurement of fluid flow properties. The Martens funnel viscometer is used to obtain the relative viscosity of drilling fluid

The Marsh funnel viscometer is an instrument used for daily measurement of the relative viscosity of drilling fluid (compared to water), manufactured according to American API standards. Both viscosity and gel strength are related to the measurement of fluid flow properties. The Marsh funnel viscometer has been used for many years to measure the relative viscosity of drilling fluid. The standard value is that the time for 946ml of standard distilled water to flow out at 20 ± 2 ℃ is 26 ± 5 seconds. The Kence Marsh funnel viscometer is made of sturdy and durable materials, and the precision machined brass orifice ensures measurement accuracy.