non-rotating test head--Many abrasion testers have the capability of performing sample rotation in addition to lateral movement across the emery paper
. Using this option creates harsher test conditions and ultimately increases volume loss.
IF, after all that rubbing with emery paper
, you think you're still not getting a good contact with your 12N or 12S plugs, use a penknife to widen the gap between the pins.
If you find deposits, sand around the lip with emery paper
and then wipe it clean.
For the first year of the apprenticeship I thought I was being treated like a dog - I had to clean the section or 'corner' of the kitchen and made sure the chef-de-partie had sufficient pans, had to scrub solid top stoves with emery paper
until they shone and make sure the various ingredients that were needed were properly prepared.
Experimental - The flat surface of each TDCB plate was polished with a sheet of 1200 grade emery paper
to obtain a standard roughness, clean surface.