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 QUESTIONS 12-1
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