American Polymer Standards is a contract testing laboratory that specializes in the area of molecular weight distribution testing. The lab analyzes materials such as nylon, co-polymers, polyurethane, polyethylene and polyethylene terephthalate. The company also has polymers and other products in stock, including aqueous and organic GPS/SEC standards and American GPS columns. Major credit cards such as MasterCard, Visa and American Express are accepted for services.