The “HIROSHIMA” Yarn Appearance Board Winder is used for winding the yarn on the blackboard for visual examination and grading the yarn as per ASTM standards.
The visual examination and grading is determined in such a manner that the specimen is gripped at one end of theectangular / tapered board and allows it to wind in the manner depending upon the range of the count in which the sample falls.
COUNTS
WRAPS / INCH
3s to 7s
16
7s to 16.6s
20
16.5s to 32s
26
32s to 65s
38
65s to 125s
48
The instrument comes in two models viz :
Motor Operated
Hand Operated
Below mentioned would be required to carry out the test which are not included with the above machine and can be procured separately.
Accessories:
Black Board Size:
Rectangular Board size : 7” x 11”
Tapered Board size : 7” x 11” x 12”
ASTM STD Boards required from 1sto 135s in a set of 6.
