Standard Whiteboard / Blackboard Raman Stability: RSD <1% — reliable
Standard Whiteboard / Blackboard Raman Stability: RSD <1% — reliableStandard Reflective White Board Barium sulfate coating reflectivity: >98% (380~780nm), reflectivity in other bands >88%, diameter 30mm Polytetrafluoroethylene coating reflectivity: >93% (380~780nm), reflectivity in other bands >90%, diameter 30mm Standard Reflective Black Board Diameter: 30mm Reflective wavelength range: 380nm~780nm Reflectivity: <5%
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Ships within 48 hours · Estimated delivery Oct 15 - Oct 20