
Y
Maintaining the Instrument Standards ....................................................................................... 11G-49
Cleaning the Lens Surface and Didymium Filter....................................................................... 11G-50
Cleaning the Sphere ................................................................................................................... 11G-50
UltraScan VIS Specifications......................................................................................................11G-51
Physical Characteristics.............................................................................................................. 11G-51
Environmental Requirements..................................................................................................... 11G-51
Power Required.......................................................................................................................... 11G-51
Conditions of Illumination and Viewing.................................................................................... 11G-52
Instrument Performance............................................................................................................. 11G-53
Regulatory Notice ...................................................................................................................... 11G-53
Color Measurement Notes ..........................................................................................................11G-55
Selecting, Preparing, and Presenting Samples ........................................................................... 11G-55
More on Sample Presentation to the Instrument........................................................................11G-55
Reflectance Measurements......................................................................................................... 11G-56
Transmittance Measurements..................................................................................................... 11G-56
INSTRUMENT REPLACEMENT, REPAIR, PROBLEMS, AND QUESTIONS12-1
Warranty...........................................................................................................................................12-1
Shipping Claims................................................................................................................................12-2
Breakage or Damage.......................................................................................................................12-2
Shortage...........................................................................................................................................12-2
Incorrect Shipment..........................................................................................................................12-3
Returns ..............................................................................................................................................12-4
Packing and Shipping Instruments for Repair.................................................................................12-4
When You Need Assistance .............................................................................................................12-6
PART IV. REFERENCE
MEASUREMENT VALUES ........................................................................................A-1
Color Scales and Related Color Difference Scales .........................................................................A-1
CIE Tristimulus XYZ Scale............................................................................................................. A-1
CIE Chromaticity Coordinates, Yxy................................................................................................ A-1
Opponent-Color Scales (Hunter Lab, CIE 1976 L*a*b*, and CIE LCh) ........................................ A-2
Hunter Rdab Color Scale.................................................................................................................. A-5
RxRyRz Reflection Factors.............................................................................................................. A-6
Other Color Difference Scales.......................................................................................................... A-7
Elliptical Tolerancing Scales (CMC, CIE94, DIN99, and CIE00) .................................................. A-7
FMC-2 (Friele - MacAdam - Chickering) Color Difference.......................................................... A-10
ISO Grey Scale............................................................................................................................... A-10
ISO Grey Stain............................................................................................................................... A-12
Metamerism Index.......................................................................................................................... A-13
Strength .......................................................................................................................................... A-14
Indices and Related Color Difference Scales ................................................................................A-15
a/b Ratio ......................................................................................................................................... A-15
a*/b* Ratio ..................................................................................................................................... A-15
ADMI-10 mm, -20 mm, and -50 mm............................................................................................. A-15