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.