NASA NTRS · 19730008370
Lead Pencils
Abstract
A study, undertaken to determine the lead content of paint on various pencils in the Goddard supply system, is reported. The survey found that lead content varied from .04 mg per pencil for carmine colored pencils to approximately 43 mg per pencil for yellow colored pencils. Results also show that yellow pencils had higher lead content than other colors analyzed. More detailed results are given in tabular form.
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Gray, L. B.. 1971-01-01. Lead Pencils. https://ntrs.nasa.gov/citations/19730008370
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