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MODERNER CNDB-5 Zahn Viscosity Cup (zahn cup) 5.3mm newtonian fluid Viscosity Cup

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Viscosity range 460~1840cSt, outflow time 20~80s, flow hole diameter 5.3mm, capacity 45ml, cup body material stainless steel, filter material stainless steel, handle material stainless steel, applicable standard ASTM D4212-93.
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Moderner CNDB-5 Zahn Viscosity CupSPEC

Moderner CNDB-5 Zahn Viscosity CupDetails

Moderner CNDB-5 Zahn Viscosity CupPacking list

SKU
NB015116
Viscosity range
460~1840cSt
outflow time
20~80s
Flow hole diameter
5.3mm
Capacity
45ml
Cup body material
stainless steel
Filter material
stainless steel
Handle material
stainless steel
Applicable standard
ASTM D4212-93
CNDB-5
Zahn Viscosity Cup
Viscosity range 460~1840cSt, outflow time 20~80s, flow hole diameter 5.3mm, capacity 45ml, cup body material stainless steel, filter material stainless steel, handle material stainless steel, applicable standard ASTM D4212-93.
MODERNER CNDB-5 Zahn Viscosity Cup (zahn cup) 5.3mm newtonian fluid Viscosity Cup Picture

use

Zahn Viscosity Cups are used to test the viscosity of Newtonian or near-Newtonian fluids. CNDB type Chai's Viscosity Cup is manufactured according to ASTM D4212-93 standard.

Model Selection

model

Measuring range

Recommended outflow time

Aperture

CNDB-1

5-6035-802.0mm

CNDB-2

20-23020-802.7mm

CNDB-3

150-85020-803.8mm

CNDB-4

220-110020-804.3mm

CNDB-5

460-184020-805.3mm
Unit: cSt, s, mm
Other parameters
volume

45± 2ml


zahn portable Viscosity Cup

Use and maintenance

1. Clean the cup body with a suitable solvent before and after use.

2. Choose an appropriate cup number, and try to make the outflow time meet the recommended outflow time in the above table.

3. Immerse the cup body in the container for 1 to 5 minutes to make the cup reach thermal equilibrium, then pull the cup vertically out of the raw material, and the action needs to be fast and steady. When the top edge of the cup leaves the liquid surface, keep the cup body vertical when the liquid flows, and the distance between the bottom of the cup and the liquid surface of the container should not exceed 150mm. Stop timing when the first breakpoint occurs, and the number of seconds of outflow time at this time indicates a certain viscosity value. The difference between the two measured values should be less than 5% of the average value.

4. Convert the outflow time into kinematic viscosity according to the following formula: (sample temperature is 25°C±0.5°C when measuring)

    ν = k(t - c)

    In the formula: ν—kinematic viscosity, cSt

           t — outflow time, s

           k, c — corresponding constants (see table below)

cup number

1

2

3

4

5

k

1.1

3.5

11.7

14.8

twenty three

c

29

14

7.5

5

0

FAQ
QI want to test a coating with a viscosity of around 1000cSt, which model of Zahn Cup should I choose?
A CNDB-5 model is recommended. Because its Measurement range is 460-1840cSt, which exactly covers the value of 1000cSt, and the outflow time is recommended to be 20-80 seconds, the test results will be more accurate.
QWhy should the outflow time be controlled at 20-80 seconds during testing?
A This time range is recommended by the standard. If the time is too short, it is easily affected by operating errors. If the time is too long, the result may be affected by temperature changes. Repeatability and accuracy of the test will be better if maintained within this range, meeting the requirements of ASTM standards.
QHow to Choose the Right Model of Zahn Zahn Cup?
A The model of Zahn Zahn Cup should be determined according to the viscosity range and outflow time requirements of the tested liquid. Generally speaking, liquids with a larger viscosity range or a longer outflow time are suitable for cups with larger aperture, while liquids with a smaller viscosity range or a shorter outflow time are suitable for cups with smaller aperture.
QThe main use of CNDB Zahn viscosity cup?
A CNDB Zahn viscosity cup is mainly used to test the viscosity of Newtonian or approximate Newtonian fluids.
QWhat steps should I pay attention to when using the CNDB Zahn viscosity cup?
A The cup needs to be cleaned with a suitable solvent before and after use. Select the appropriate cup number to make the outflow time meet the recommended time as much as possible. After immersing the cup body in the container for 1 to 5 minutes to achieve hot equilibrate, then pull out the cup vertically. The action should be fast and smooth. From the time the upper edge of the cup leaves the liquid surface, the liquid should be kept vertical when flowing, and ensure that the distance between the bottom of the cup and the liquid surface of the container does not exceed 150mm. Stop timing when the first breakpoint occurs. At this time, the number of seconds of outflow time indicates a certain size of viscosity value. The difference between the two measured values should be less than 5% of the average value.
QIs the zahn cup the Chua's viscosity cup? Is there a 5mm aperture?
A Hello, yes, the modern CNDB-5 model is used for the 5mm aperture.
QDoes the MODERNER Zahn viscosity cup meet the ASTMD1084 standard?
A The CNDB-5 Zahn viscosity cup can refer to
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