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Mechanical pencils. Part 2: Black leads, classification and dimensions
STANDARD published on 1.11.1994
Designation standards: ČSN ISO 9177-2
Classification mark: 901500
Catalog number: 16902
Publication date standards: 1.11.1994
SKU: NS-180676
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
Tato část mezinárodní normy ISO 9177 specifikuje druhy a rozměry tuh používaných v mechanických tužkách. Používají se dva druhy tuh: - polymerové tuhy (označované písmenem "P"); - keramické tuhy (označované písmenem "C")
2.6.1971
2.6.1971
2.6.1971
WITHDRAWN
26.6.1956
WITHDRAWN
1.1.1996
WITHDRAWN
1.11.1994
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