Company Mitutoyo Corporation (Japan)
Measuring rang X-axis 12.5mm
    Z-axis 350gm
Accuracy Ra=0.01gm~100gm
Company KETT (Japan)
Mode LZ-300J
Measuring range 0~1500gm
Accuracy 1gm under 50gm
    2% at 50gm or greater
Resolution 0.1gm under 100gm
    1gm at 100gm or greater
Company BYK-Gardner(Germany)
Model 6801
Spectrum wavelength range 400 ~ 700 nm
Reproducibility 0.01GE*
Between the instrument agrees 0.2GE*
Basic color scheme  
  CIELab; CIELCh; Lab(h); XYZ; Yxy; RxRyRz and so on
Chromatic aberration value  
  _e*; _e (h); _efmc2; _e94; _ecmc; _e99; _e2000;
Indices and so on ingredient difference
  YIE313; YID1925; WIE313; CIE; Berger; Color strenght; Opacity; Metamerism
  LED -- A; C; D50; D55; D65; D75; F2; F6; F7; F8; F10; F11; UL30
Gauging standard  
  ASTM D2244 E308 E1164; DIN 5033 5036 6174; ISO 7724


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