Spectralon 99% reflectance standard, calibrated, for diffuse reflectance, 2 inch diameter, in durable Delrin holder with protective cover
Certified glass neutral density standards to certify UV instruments from 440 to 635 nm for accuracy and linearity to USP
Certified reference standard for certification of UV instruments to USP requirements. Includes 0.006% potassium dichromate plus perchloric acid blank and neutral density filters of 0.5, 0.7 + 1.0 Abs. for photometric accuracy tests. Also includes 4% holmium perchlorate in 10% perchloric acid for wavelength accuracy tests. Each solution is sealed in a quartz cuvette. A certificate of calibration with NIST traceability is included for each solution/filter.
Spectralon 99% reflectance standard, calibrated, for diffuse reflectance, 1.25 in diameter, in durable Delrin holder with protective cover, for DRA-CA-30I. Includes diffuse reflectance data from 250 to 2500, every 50 nm
standard, for ICP-OES and MP-AES
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