Sterile gloves are used for hand and arm protection in medical exam, surgical, medical device manufacturing, forensic, scientific, automotive, food service, and industrial applications . Sterile gloves come in a variety of materials, thicknesses, sizes, lengths, colors, and have various characteristics. Sterile gloves are designed for dexterity, tactile sensitivity, strength, and barrier protection. Sterile gloves are commonly made from flexible materials such as nitrile, latex, natural rubber latex, vinyl, chloroprene, and polyethylene (PE). Some applications may require sterile gloves that are silicone or silicone-free, latex or latex-free, sterile or sterile-free, powdered or powder-free, chlorinated or chlorine-free, or known as allergy-free. Some sterile gloves can provide protection against specific allergy types such as Type I (latex) and Type IV (chemical). Sterile gloves can be uncoated or have an interior coating of aloe, glycerine, polymer, or another substance to help ease skin irritation, provide hydration, or help with glove removal and donning. The interior coating of sterile gloves may provide a protective barrier. The exterior surface of sterile gloves may have a coating material such as polyethylene (PE), used to improve strength, create a liquid-proof or other barrier, and help with donning. As part of personal protection, sterile gloves can provide flame, chemical, puncture, cut, or liquid resistance. Sterile glove thickness is commonly measured in mil, or thousandths of an inch. Some sterile gloves may be waterproof. Sterile gloves may have coated fingertips or textured, coated non-slip surfaces on fingers, fingertips, palms, or the whole glove, for secure handling and gripping of instrumentation and devices. Sterile gloves can have a beaded cuff for strength, lined cuff, or an extended or gauntlet style cuff to help protect wrists and forearms from debris. While many sterile gloves are ambidextrous, and can be used on either hand, some sterile gloves can be purchased in hand-specific models. Some sterile gloves meet Occupational Safety and Health Administration (OSHA) standards and are considered medical exam, surgical, or food grade. Sterile gloves can meet Federal Drug Administration (FDA), American Society for Testing and Materials (ASTM), or Conformité Européenne (CE) standards.