What Are Buyers Saying About Viscometers?

Find out the frequency of use and more from the latest viscometer survey results.

By Jason Kerkhof

Many industries measure viscosity, though the biggest user is the quality control department utilizing single-point measurement. Research scientists also use viscometers to see how a material reacts to being sheared. The task at hand determines the kind of viscometer to use—different viscometers measure different magnitudes of viscosity and different changes in it. According to one expert, the most important factor to consider when buying a viscometer is robustness, even if users have to give up some sensitivity.

Top 6 Questions You Should Ask When Buying a Viscometer

  1. What kind of temperature control and spindle rotational speed control does the instrument offer? Temperature is critical, since viscosity generally rises as a fluid cools. Spindle rotation may also affect viscosity.
  2. What range of accessories (ex. sample holders) does the company offer for the instrument?
  3. How easy to use is the viscometer? Since most users nowadays aren’t experts, an easy-to-use instrument is probably the best fit for most labs.
  4. What are the sizes of the samples you’ll be working with? This may be an issue when analyzing very expensive materials such as drugs or proteins and cost of ownership is also important for high-volume applications.
  5. What is the instrument’s measurement range? If you’re analyzing petroleum, from crude oil to gasoline, do you want to change out the capillary for each measurement, or use something that works all the way through?
  6. What kind of service and support does the company provide?

Viscometer types used by survey respondents:

Rotational viscometer 83%
U-Tube / Ostwald Viscometer 22%
Vibrational Viscometer 7%
Falling Ball Viscometer 4%
Rectangular Slit Viscometer 4%
Other 11%

Frequency of viscometer usage by survey respondents:

Several times each week 40%
Several times daily 30%
Two to three times a month 19%
Less than once a month 11%

Nearly 58% of respondents are engaged in purchasing a new viscometer. The reasons for these purchases are as follows:

Replacement of aging system
Addition to existing systems, increase capacity
First time purchase

Top 10 Features/Factors Respondents Look for When Purchasing a Viscometer:

Repeatability 75%
Durability / Rugged design 66%
Simple operation 64%
Torque accuracy 60%
Price 55%
Warranty 43%
Available accessories 36%
Onsite service / support 30%
Training 30%
Extended warranty 26%

For more information on viscometers, including useful articles and a list of manufacturers, visit www.labmanager.com/viscometers

Categories: Surveys

Published In

Your Career, Your Move Magazine Issue Cover
Your Career, Your Move

Published: September 13, 2018

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