A-A-2666 Pencil, Electrographic

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[METRIC]
A-A-2666A
May 13, 1996
Superseding
A-A-2666
August 3, 1991

COMMERCIAL ITEM DESCRIPTION
PENCIL, ELECTROGRAPHIC

The General Services Administration has authorized the use of this commercial item description, for use by all federal agencies.

1. Scope. This Commercial Item Description covers wood-cased electrographic lead pencils used in test scoring and mark sensing on electrographic equipment.

2. Salient characteristics:

2.1 Wood cased electrographic pencils shall be round, hexagonal or oblong shaped with a high conductivity black graphite lead mixture and shall produce smooth, clear, even and uniform writing. Additionally, the lead shall not crumble or dust and be easily erasable when used with suitable rubber, art gun or plastic erasers.

2.2 The pencil leads shall be centered within the casing and securely bonded (glued) throughout its entire length, the two halves securely bonded and in conformance with normal commercial practice. When sharpened the wood casing shall no split, splinter or tear, shall present a smooth finish, and the lead shall not crumble or break.

2.3 Pencils without erasers shall not be less than 17.5 cm (6 7/8 inches) long and with erasers shall not be less than 17.8 cm (7 inches) long. Erasers shall be provided in accordance with commercial item description A-A-132 when specified in the order or contract.

2.4 Pencils shall be marked with the manufacturer’s name or trademark, lead hardness designation, (if specified in section 8) and designated as an eletrographic pencil and the color of the case shall be in accordance with normal commercial practice.

2.5 The hardness range shall be expressed as a “grade” as defined by ASTM C709 and designated as one of the following:

6H, 5H, 4H, 3H, 2H, H, F, HB, B, 2B, 3B, 4B, 5B, 6B