NIST SRM 1930 compliant kit for photometric accuracy and neutral density in the VIS range (400-700nm

Firefly Scientific's equivalent of the NIST SRM 1930 calibration reference kit for verification of photometric accuracy in the VIS range.

Delivery includes:

• FF-HF-0.3 calibration standards 0.3AU (50% transmission)
• FF-HF-1.5 calibration standard 1.5AU (3% transmission)
• FF-HF-2.0 calibration standard 2.0AU (1% transmission)
• FF-A30 holder
• FF-CASE-P4 case

Specifications:

• Tolerance of the photometric accuracy filters: FF-HF-0.3 +/- 0.0020AU, FF-HF-1.5 +/- 0.0054AU, FF-HF-2.0 +/- 0.0055AU
• Wavelength range: 400-700nm 
• External dimensions of the individual filters: 12.5 x 12.5 x 45.0mm

Advantages of Firefly Scientific's solid state calibration standards:

• Highly accurate and reproducible calibration of your spectrophotometer
• Never has to be replaced
• Never needs recalibrating if handled and stored correctly
• Scratch-resistant coating protects optical surfaces
• Can be used in any spectrophotometer (with standard 12.5 x 12.5 x 45.0mm holder)
• Fulfils or surpasses NIST-1930 requirements and tolerances
• NIST compliant