This Wheaton controlled dropping bottle tip has an LDPE body and is available in a variety of colors. This controlled dropping tip is for use with a 7 to 15mL dropping bottle and size 15-415 screw cap to dispense drops of liquid in a dropping motion. The LDPE (low-density polyethylene) body is lightweight, flexible, and elastic, and resists impact, stress cracks, and moisture absorption. The bottle tip is available in a variety of colors to enable color-coding of reagents or coordinating with industry storage codes, and it snaps into the neck of a dropping bottle for a secure fit. The dropping tip dispenses a single drop at a time with an average size of 44μL +/-6μL. This dropping tip is suitable for use in many biotech, diagnostic, and pharmaceutical dispensing applications.Lab bottles are used to store, hold, and mix liquids, powders, and other substances in a wide variety of scientific industries. Lab bottles have a more pronounced neck and shoulder than jars. Lab bottles are manufactured with a combination of characteristics in order to meet the demands of particular applications, such as for solution dispensing, mixing, and weighing, and use in centrifuge operations. They come in many shapes for specific applications, with a variety of mouth or nozzle shapes and sizes for specific use. Lab bottles are made from materials, such as glass (borosilicate or soda-lime) and an array of plastics, which are selected for chemical and thermal expansion resistance, transparency, and their adaptability in a variety of applications. Lab bottle interiors, caps, and lids are often lined with a protective material. Caps and lids help seal bottles to prevent solutions from spilling. The capacity refers to the fluid amount held by a lab bottle, and is commonly measured in milliliters (mL) and liters (l), and sometimes in ounces (oz). Lab bottles are suitable for use in chemistry and biology applications, as well as in pharmaceutical and scientific testing.Wheaton Industries Inc. manufactures and repackages laboratory ware, instrumentation, containers, and associated products under the brands Wheaton Science Products and Wheaton Science Packaging. The company, founded in 1888 and headquartered in Millville, NJ, meets International Organization for Standardization (ISO) 9001/2008 and 14001/2004 standards.