TS ISO 9180
Bleck leads for wood cased pencils-Classification and Diameters
This standard covers the classification and diameters of black leads used for wood cased pencils.
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About This Item
TS ISO 9180 is a standard focused on the classification and diameters of black leads used in wood-cased pencils. In practical terms, it helps establish a common dimensional language for pencil leads so that different products can be identified and matched consistently. By defining the diameter side of the subject, it supports compatibility between the lead and the wooden pencil body.
Why classification and diameter matter
Pencil leads may vary in writing feel, hardness and thickness, but the subject of this standard is specifically the classification and diameters of black leads. In wood-cased pencils, lead diameter is a key geometric feature because it affects line width, break resistance and how well the lead fits the pencil construction. A shared way of describing these dimensions is therefore important for manufacturing consistency and supply-chain interchangeability.
What this standard covers
- Black leads used in wood-cased pencils
- Classification of those leads
- Definition of lead diameters and a common measurement language
In general technical context, the composition and binder system of a pencil lead influence writing performance, but this standard is concerned with size and classification rather than formulation. It is therefore best understood as a reference for identifying which diameter and category a lead belongs to, not as a document that explains how the lead is made.
- Publication Date: 10.03.1998
- Standard Status: U (Yürürlükteki Standard/Standard)
- Publisher: TSE
- Document Language: tr
- ICS Classification: 01.100.40 Çizim Ekipmanları; 35.260 Büro Makinaları *Sargı ve ambalaj ekipmanları, bkz.
- Pages: 5
- Source Standard: ISO 9180:1988
- International Equivalents: ISO 9180: 1988--; NF ISO 9180: 1989 EQV--; DIN ISO 9180: 1989 EQV--; NEN ISO 9180: 1990 EQV--; ISO 9180: 1988--
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