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This Japanese Industrial Standard specifies chalks made of calcined plaster and calcium carbonate to be used on a blackboard.
Author | JSA |
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Editor | JSA |
Document type | Standard |
Format | File |
Confirmation date | 2017-10-20 |
ICS | 97.180 : Miscellaneous domestic and commercial equipment |
Number of pages | 10 |
Replace | JIS S 6009 (1995-07-01) |
Year | 2013 |
Document history | JIS S 6009 (2013-02-20) |
Country | Japan |
Keyword | JIS 6009;6009 |