Viscosity cup selection hot problem set

Tu 4 Viscosity Cup is a Viscosity Cup designed according to the national standard GB/T1723. There are two types of desktop and portable. It can measure the fluid viscosity in the range of 30s to 100s for quality inspection. The capacity of the Viscosity Cup is designed to be 100ml. It is widely used in laboratories or production sites in coatings, paints, inks and other industries. This article sorts out the hot questions asked by users of the North and South Tide, in order to help users understand and choose Tu 4 Viscosity Cups.

common problem

1. What is the diameter of the filter tip for 4 cups?

[Answer]  Hello, Tu 4 Cup is a Viscosity Cup that meets the national standard, with a capacity of 100ml and a leak diameter of 4mm.

2. Can the viscosity of car spray paint be tested with a 4-cup viscometer ?

[Answer]  Tu 4 cup viscometer conforms to GB/T1723 standard and can measure the viscosity of paint, paint and other fluids. Newtonian or near-Newtonian liquids have stable fluidity and repeatable outflow time, so Tu-4 cups are suitable for such low-viscosity varnishes and paints, and are not suitable for measuring non-Newtonian flow coatings, especially High consistency, high pigment content coating with thixotropic structure.

3. The measurement time is required to be within 150, does the coating of 4 Viscosity Cups meet the requirements?

[Answer]  Hello! Although the standard stipulates that Tu-4 cups can measure coating products with an outflow time of less than 150 seconds, its good measurement range should be 20 to 100 seconds, and the suitable measurement of kinematic viscosity is 60 to 360mm2/s.

4. Can the 4-cup bracket of Yuepingtu be used to hold other brands of Viscosity Cups?

[Answer]  If other brands of Viscosity Cups are different from the standard of 4 cups, it is likely not applicable; in addition, the design of the brackets of different brands is different, so it needs to be based on the Viscosity Cup. The actual parameters can only be confirmed.

5. Is there a Tu 4 cup with a height of 50?

[Answer]  Tu 4 Cup is a Viscosity Cup that meets the national standard, with a capacity of 100ml, a leak diameter of 4mm, and a cup height of 72.5mm, so the parameters are all fixed.

6. Can Tu 4 Cup be used to measure the viscosity of synthetic resin paint?

[Answer]  Hello, yes, whether it is synthetic resin paint, nitro spray paint, etc., you can use 4 cups to measure the viscosity of the paint.

7. The capacity of 4 cups is 100ml, which means that the sample I tested must be 100ml?

[Answer]  Yes, the standard volume of Tu-4 cups is 100ml. If the test sample is less than 100ml, it is recommended that you increase it to 100ml. Measure the time with a stopwatch in a standard way to obtain the viscosity of the test liquid.

8. Why do you need to measure viscosity in a constant temperature room? Can't measure normally?

[Answer]  The viscosity of the paint is related to the amount of diluent, and also related to the change of liquid temperature. The higher the liquid temperature, the lower the viscosity; the lower the liquid temperature, the higher the viscosity. Therefore, while measuring the viscosity of the paint, it is necessary to measure the liquid temperature of the paint at this time. That is to say, adjusting the viscosity needs to consider two aspects: the amount of diluent added and the liquid temperature.

9. The Tu 4 viscometer of Yueping NDJ-5 is the No. 4 cup?

[Answer]  NDJ-5 Viscosity Cup is a Tu-4 Viscosity Cup produced according to the GB standard. It is usually called Tu-4 cup or No. 4 Viscosity Cup in the industry. But the name of the latter is not rigorous enough, and may be confused with other brands, so customers are asked to identify it by themselves.

10. What is the monitoring of 4 cups?

[Answer]  Tu 4 cups are GB standard Viscosity Cups for measuring fluid viscosity.

11. Is it possible to test insulating varnish by applying four cups?

[Answer]  Yes. Use Tu-4 Viscosity Cup test, generally 15-17 seconds.

12. Why is the test time range of 30-100 seconds for this 4-cup NDJ-5, but the test time for other domestic 4-cups is generally less than 150 seconds? Don't they all meet the national standard?

[Answer]  Hello, because this flow time is related to the aperture of the 4 cups, and the flatter the aperture is a conventional model, the liquid that can be tested by this desktop 4 cups is generally within 100s; but if it is normal If it exceeds 100s, a Rotational Viscometer will be selected for measurement.

13. To measure whether the alkaline liquid can be coated with 4 cups of this model

[Answer]  Yes.

14. What is the difference between Iwata Cup and Tu4 Cup?

[Answer] Different capacities have different measurement results. Tu 4 cups are designed in accordance with the national standard GB/T 1723. The cup hole of Tu 4 cups is 4mm, which can measure the viscosity of the paint within 150s; while the Iwata cup is designed in accordance with the Japanese JIS standard, with an outer diameter of 6mm and an inner diameter of 3.81 mm, the measurable viscosity range is 70~370cst, and the outflow time is 10-60 seconds.

15. What is the difference between Yueping Tu 4 Viscosity Cup and Tu-1 cup?

[Answer]  The Tu-4 Viscosity Cup is developed according to the gb/T1723-93 viscosity measurement method. Generally, it is used to measure the viscosity of the paint below 150s, while the Tu-1 cup is mainly used to measure the viscosity of the paint. Variety of coatings.

More product questions and answers can be found on the product details page.