Apparent diameter of Glass cord

1. Specimen
The specimen shall be taken as follows;
The specified number of bobbin shall be sampled from one lot.
The specimen of about 15cm length of glass cord shall be taken three times
from above sampled bobbins after 1m rejected.
2. Test procedure
The specimens,three cords,are put in parallel on the stage of dial gauge.
Apparent diameter shall be read to 0.01mm after 30 seconds weighing 100
gram on the specimens.
3. Calculation
Apparent diameter shall be reported in average mm of two measurements to
the second decimal place.