Bottle Top Dispenser, Calibrex 520, 1-10mLDelta Scientific is an independently owned and operated Canadian distributor of high quality products.We have been in business since 1985 and are well recognized in our markets.Delta Scientific specializes in distributing chemicals, consumables, equipment, ICP & ICP-MS standards & components, inorganic & organic proficiency testing standards and XRF supplies for use in analytical, environmental, educational, quality control , research & development and spectroscopy applications.Environmental Express, Inc., a Cole-Parmer company, is the leading developer, manufacturer and distributor of environmental laboratory equipment and consumable supplies for commercial, governmental, industrial and academic laboratories worldwide. The company provides an entire range of laboratory products used in applications such as water/wastewater analysis, oil and grease analysis, metals analysis and hazardous waste analysis. In Canada, Environmental Express products are available exclusively from Delta Scientific.