Description
NOTE: The Pro Check standards are no longer in production
Catalog No. 28336
Mid NTU Value – approximately 7 NTU
Precise value determined after calibration with primary NTU standards
Solid Secondary Validation Standard for use with the Micro TOL series (can also be used with HF scientific laboratory instruments, but will not work with the Micro TPW or Micro TPI portable turbidimeters due to the difference in the size of the optics on those units).