Nalgene 1203-0030 Polymethylpentene Low Form Griffin Beaker, 30mL Capacity (Pack of 12) Round, Griffin-style, low-form, tapered beaker with silk screened graduations (mL) for general laboratory use Polymethylpentene (PMP) beaker for clarity, shatter resistance, and chemical resistance to most acids, bases, and common solvents Variety of sizes (30-, 50-, 100-, 150-, 250-, 400-, 600-, 1000-, 2000-, 4000-mL), marking area, and silk-screened catalog number, size code, resin code, maximum use temperature, and "no flame'' symbol Pour spout, withstands continuous temperatures to 150 degrees C and intermittent temperatures to 175 degrees C (not for use with a hotplate) Conforms to ISO/DIS 7056 International Standards for Laboratory Plasticware Beakers