JSA - JIS S 6009
Chalks
active, Most Current
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| Organization: | JSA |
| Publication Date: | 20 February 2013 |
| Status: | active |
| Page Count: | 12 |
| ICS Code (Miscellaneous domestic and commercial equipment): | 97.180 |
scope:
This Standard specifies chalks made of calcined plaster and calcium carbonate to be used on a blackboard (hereafter referred to as "chalks").
In addition, chalks include those surface treated in order to prevent hands from getting dirty and those contain recycled materials.
Document History
JIS S 6009
February 20, 2013
Chalks
This Standard specifies chalks made of calcined plaster and calcium carbonate to be used on a blackboard (hereafter referred to as "chalks").
In addition, chalks include those surface treated in...