... is equivalent to tristimulus values X, Y, and Z calculated in corresponding functions under GB3978 standard illuminant D65, ... , Δy≤0.002l Palette system: l Color: X, Y, Z; Y, x, y; L*, a*, b*; L, a, ... Computer system: Pentium 4 or abovel Software: WSF-J dedicated software, under Windows XP or 2000 operating systeml ... 24kgl Overall dimensions: 680mm ´ 430mm ´ 430mm WSF-J Spectroscopical Color photometer