Polystyrene Calibration Films are used to determine wavelength accuracy for spectrophotometers. Available in standard operating range, this calibration film is well known for its ergonomic design. Polystyrene coating of these films prevents their degradation associated with various external factors like moisture, dirt and UV light. Accessible in different thickness based choices, these films are appreciated for their non toxic content, recyclable quality and moisture proof design. Quality of these films has been verified on the basis of their precision level, raw material selection and film thickness.