Online - Pay by credit card, check or your account.
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.
Biocam. What is pH? This wall chart defines pH and the pH scale and compares pure water to acids and bases. A colorful pH strip runs the length of the chart and show common substances, including foods and their pH. 18" x 24" laminated.