By means of a mechanical standardized writing method, a sufficiently long line is drawn. The refill is weighed again. From the difference in weight and the known length of the line, DOKUMENTAL determine the maximum productiveness of the refill. Depending on its size, a ball point pen refill is able to produce a line of 2000 up to 5000 m of length.
Movie Ink Lay Down (mpg)
Movie Ink Lay Down (8476 KB)
Please see our new general remarks on the shelf life of inks at the following link:
Click here (PDF file)
If you have any further questions regarding......
Please see the "Career" section for current job and training vacancies in the Woellner Group: