A-A-2798
E. Hardness of the Lead. Hardness degree shall be marked on the leads.
The hardness range shall be expressed as a “grade” as defined by
ASTM C709 and be one of the following, as specified:
10H, 9H, 8H, 7H, 6H, 5H, 4H, 3H, 2H, H, HB, B, 1B, 2B, 3B, 4B, 5B, 6B, 7B, 8B,
9B, 10B
The hardness of the leads shall such that no inversion shall take place as the
density increases from 10B to 10H for the leads of the same brand. The grades
and lack of inversions shall be certified by the vendor to be in conformance
with normal commercial practice. The evidence of this conformance shall be
available to the government in the form of a chart of line densities for the
full range of grades, upon request.
F. Toxicity. The supplier shall certify that the leads contain no raw
material that has ingredients of harmful substances and that the contents of
lead, cadmium and arsenic shall be 200 ppm or less, each. As an alternative to
the above certification, the Pencil Manufacturers Association Toxicity
Certification shall be considered acceptable (see section VII). The harmful
substances shall be defined as the poison and injurious substances as
designated in Fed Std. 313.
G. Workmanship. Leads shall be clean and free from defects which
adversely affect serviceability or performance. The container shall be in
accordance with the manufacturer’s best commercial practice and shall have no
defects that affect serviceability or appearance.
II. Measurements
A. Diameter. Measurements shall be taken at three points (near each end,
and the middle) of each specimen. The mean of the three measurements shall
determine the conformance of the sample.
B. Length. Measurements shall be made once per each sample selected,
using a device with precision of at least 0.1 mm.
III. Recovered Materials.
The offerer/contractor is encouraged to use recovered materials in accordance
with Public Law 94-580, as amended, to the maximum extent practicable. The
items shall be composed of the highest percentage of recovered materials
practicable, consistent with maintaining a satisfactory level of competition
without adversely affecting performance requirements or exposing suppliers’
employees to undue hazards from the recovered materials.
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business