The ASTM D97 states that for samples with pour point greater than -33 C, it has to be heated to minimum 45 C, then transferred to 24 C bath to cool the sample to 24 C. Is this true? Because it's not mentioned in the video. My second question is, given that the procedure says to start making observations 9 C above the expected pour point, does it mean I can just set the bath directly to the appropriate or does it have to be done in stepwise manner. Say, if my sample has an expected pour point of -22 C, can I just set my bath to -33 C and to start observing at -13 C? The reason for my question is because it can save a significant amount of time cooling my sample from 45 C to -22 C directly. Please help clarify if things are done a little differently in industry as opposed to textbook method.
astm d97 stated that it is for petroleum based product. how about vegetable oil, can it use the same standard? i haven't found specific pour point measurement standard for vegetable oil.
Thanks for sharing! Very good to see how the test is done
The ASTM D97 states that for samples with pour point greater than -33 C, it has to be heated to minimum 45 C, then transferred to 24 C bath to cool the sample to 24 C. Is this true? Because it's not mentioned in the video. My second question is, given that the procedure says to start making observations 9 C above the expected pour point, does it mean I can just set the bath directly to the appropriate or does it have to be done in stepwise manner. Say, if my sample has an expected pour point of -22 C, can I just set my bath to -33 C and to start observing at -13 C? The reason for my question is because it can save a significant amount of time cooling my sample from 45 C to -22 C directly. Please help clarify if things are done a little differently in industry as opposed to textbook method.
So grateful to you.Very well explained
oh, it is using the pour point instrument from our company, Dalian Petroleum Instrument, luck to see it, which company are you from?
Do you know if you touch that cold oil.. is it like a solid.. like a gel.. like a candle?
Very useful video. Thank you very much.
astm d97 stated that it is for petroleum based product. how about vegetable oil, can it use the same standard? i haven't found specific pour point measurement standard for vegetable oil.
Thanks, good work
please can you give tutorial of D445 viscosity