XND-1 Type Coating - 4 ViscometerDetailed product description：

1、 Purpose:
The XND-1 Tu-4 viscometer is designed and manufactured according to the requirements of the national standard GB/T1723 "Determination of Coating Viscosity". It is suitable for viscosity measurement of coating products with viscosity below 150 seconds. It is a portable instrument for conditional measurement of coating viscosity, which calibrates the viscosity of the measured liquid by the time required for it to flow out of the standard tube hole after filling a specific container. The unit is seconds.

2、 Technical characteristics
1. The Tu-4 viscometer is made of brass with a capacity of approximately 100 milliliters. Its geometric dimensions and inner wall roughness comply with the provisions of GB/T 1723 "Determination of Coating Viscosity", and its bottom is a stainless steel outflow hole.
2. Correction factor K: Multiply the viscosity measured by the calibrated viscometer by the value of K to obtain the conditional viscosity measured by the viscometer. The correction factor K should be within the range of 1 ± 0.03, otherwise the viscometer should be replaced. The viscometer should be calibrated regularly according to its frequency of use.
3. The difference between the measured and calculated values of the standard viscosity liquid with known kinematic viscosity flowing out of the Tu-4 viscometer should be within ± 3% of the calculated value.