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By Phone - Call us at 800.628.7748 Mon. - Thurs. 7:30 - 4:00 pm, Fri. 7:30 - 3:00 pm
By Fax - Fax your order with ourpdf form.
The contents, when dissolved in 500ml of distilled water, make a precise buffer solution.
Supplied in packages of 5 envelopes each.