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Viscometer RV or LV
I have used both style of viscometers various labs. I have noticed some labs may have the RV model over the LV model. Is there a benefit to using either model for cosmetic purposes? I will need to purchase a model soon and wondered if there is an opinion as to which would be better if I had to chose one.
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4 Replies
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i used LV at 2 Department of 2 Company long time without complain!
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We have both but Lv is the workhorse
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Thank you for the replies gentleman! Just lately I have used and seen the RV model in the “smaller” labs and with larger labs they have both or the LV model. Right now on several auction sites I have seen the LV models being more available than the RV. So I might be forced into getting an LV.
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The LV is the more sensitive spring, it has a lower range of viscosity it can measure. The RV is less sensitive and so it generally works better for thicker samples (it’s about 10x less sensitive if I understand the Brookfield manual correctly)
Brookfield has some decent documentation on their equipment- if this link doesn’t work just google ‘More solutions to sticky problems’ https://www.brookfieldengineering.com/-/media/ametekbrookfield/tech%20sheets/more%20solutions%202017.pdf?la=en
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