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adobe.gif (712 bytes)Every article is saved in the PDF format and can be read with the Adobe (TM) Acrobat (TM) Reader.  (If you need a copy of the FREE reader, just follow this link.)


Hardness (DH) Article on 3.5" Floppy ($3.50 + $3.95 Shipping & Handling) Orders are usually shipped within 3-5 business days.

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Hardness (DH) Article in PDF format - Electronic Download ($2.95 + NO Shipping) (~ 1.6 MB) An e-mail with instructions for downloading the article will be sent to you as soon as your order is processed (within 24-48 hours).

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