Style:Sodium Hypochlorite (Bleach) Safety-vented wash bottles provide compliance with the Globally Harmonized System of Classification and Labeling of Chemicals (GHS) and OSHA’s HazCom 2012 requirements – as pertains to “Workplace Labels”. They are pre-printed with the chemical name and formula, GHS pictogram and signal word*, National Fire Protection Association (NFPA) Section 704 Four-color Diamond, health hazards, Chemical Abstract System (CAS) number, and suggested protective clothing and equipment. A unique valve prevents pressure build-up eliminating potentially dangerous chemical drips and allows dispensing in an upright or inverted position.** The 53mm (2") wide mouth makes refilling easy. Bottles are translucent LDPE (Sodium Hypochlorite is white LDPE for light-protection between 230 and 450nm and Toluene is red LDPE) and color-coded polypropylene closures aid in quick and easy identification. 500ml - 4/bag; assortment is 4 per bag, includes one each: Acetone, Isopropanol, Bleach, and Ethanol **Methyl Ethyl Ketone and Toluene do not include vented valve Research, industrial and healthcare professionals rely on SP Scienceware for their sample handling needs. Sold worldwide, Bel-Art and H-B Instrument brand laboratory supplies include over 5,000 items from safety wash bottles to fume hoods, thermometers, racks, desiccators, hydrometers, ice buckets, scoops and spoons. Custom calibration services, plastic molding, specialty coatings and wire manufacturing are also available. Wilmad-LabGlass brand laboratory glassware complements Bel-Art and H-B Instrument with over 7000 items including NMR and EPR consumables and specialty glassware, as well as custom fabrication for individual glassware, glass repair services and OEM glass parts. SP Scienceware is a division of Warminster, PA based SP Industries which also include SP Scientific laboratory, thermal management, and pharmaceutical production equipment and SP Ableware aids for daily living.