There is no minimum order requirement. For fast and efficient service, please provide us with the following information:

• Customer account number (if known)
• Valid purchase order number
• Invoice address
• Delivery address
• Name and phone number of purchasing agent
• Name and phone number of end user
• Catalogue number and description of product
• Quantity and size of product

To confirm a telephone order in writing, the confirmation should be clearly marked "Confirmation — Do Not Duplicate". If your institution is a regular customer, written confirmation of telephone orders is generally not necessary.