TESTS OF PENCIL LEADS

Summary of both my tests and those of Chris and Meredith of the properties of graphite pencil leads.  YES means diamagnetic.  NO means paramagnetic.

Pentel Super Polymer,
0.35  HB YES Japan
0.35 B&2B YES Japan
0.5 B&2B YES Japan
0.5 HB YES Japan
0.5     F YES Japan
0.7  HB (1 box YES, 3 boxes NO) Japan
0.7 B YES Japan
0.9  2B YES 15/$1 at McGuckin, 2524 Arapahoe Ave., Boulder, CO
0.9 HB NO Japan
0.9 B NO Japan
Faber-Castell (1.4 B labeled Brazil)
http//www.faber-castell.de/
0.35   ? Germany
0.5 Super Polymer ? Germany
0.7  2B YES Germany
0.7   ? Germany
0.9   ? Germany
1.4  B,Super Polymer leads for their "E Motion Pencils" YES (very good) 6/$2.88 at Meninger 499 Broadway, Den, CO
2.0 B & 2B NO Germany
Staedtler (Marsmicro Polycarbon) Germany
http://www.staedtler.com
0.5   ? Germany
0.7   ? Germany
0.9 B & 2B YES (very good) No longer made.
0.9 HB YES (less than 2B & B) No longer made.
2.0 B & 2B NO Germany
Derwent
7.0 8B NO  
Stanford
0.5 HB YES Japan
0.9 HB (Sphere TM) NO Korea
Pilot (NEO-X)
0.7 HB YES Japan
MonAmi
0.7 HB NO Korea
School Time      
0.5 HB NO China
       


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