Ask The Expert

 I have CM-5 motorized crockmeter in my lab. in the final stroke, its finger stops 2-3 cm away from the starting position. How much it would effect the test results. Similarly, if the finger of crockmeter travel 2~3 cm more after completion of the final stroke, how it would effect the resuls? Advise in details.

Answer: Sounds to me that your grub screw on the pivot arm has worked loose you need to tighten it up and recheck your travel distance. If it is stil 2-3 cm  short of the correct distance then contact your local SDL-ATLAS Agent who will advise you further. Obiviously if it is outside the acceptable tolerence stated in your method it could make a considerable difference to your results dependling of the rub fastness of the fabric under test.