VWR® powder pack reagents are designed to be used on laboratory and portable photometers with 16 mm cell capability. No calibration data is necessary. The pillows, individually sealed in aluminium foil packs, are unaffected by ambient conditions and contain pre-measured powder reagents for accuracy, convenience and great solubility.

• Accurate
• Fast and convenient by easier dissolution than tablets and long shelf life
• No calibration necessary
• Beveled edge prevents reagent from getting stuck in corners