Brightnesss Color Meter - Testing Machines Inc - #4

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Testing Machines Inc. 2 Fleetwood Court Ronkonkoma, NY 11779 Tel: (631) 439-5400 Fax: (631) 439-5420 Info@testingmachines.com Messmer Instruments Unit F1 Imperial Business Estate West Mill, Gravesend Kent DA11 0DL UK Tel:+44 (0) 1474 566488 Fax:+44 (0) 1474 560310 Büchel BV Fokkerstrat 24, 3905 KV Veenendaal, Netherlands Tel:+33 (0)318 521500 Fax:+33 (0)318 5400358 Lako Tool and Manufacturing Inc. 7400 Ponderosa Road Perrysburg, Ohio 43552 Tel: (419) 662-5256 Fax: (419) 662-8225 Lawson Hemphill 1658 G A R Highway Swansea, MA 02777 Tel: (508) 679-5364 Fax: (508) 679-5396 Information@ lawsonhemphill.com Adamel Lhomargy SARL Z.A. de l’Habitat, Bâtiment 6 Route d’Ozoir, 77680 Roissy en Brie, France Tel:+33 (0) 1 6440291 Fax:+33 (0) 1 64409211 TMI Canada P.O. Box 203 Pointe-Claire Dorval QC, H9R-4N9 CAN Tel: (514) 426-5855 Fax: (514) 426-1557 www.testingmachines.com www.lakotool.com www.lawsonhemphill.com COLOUR MEASUREMENT SYSTEMS AVAILABLE X,Y,Z CIE1964(10°) D65 tristimulus values. Y, x, y 1964(10°) chromaticity coordinates. L*,a*,b* CIE 1976 uniform colour space C*, h*, Wb, Wy Hue, hue angle, whiteness value for porcelain (GB/T1503-92) ÄL*,Äa*,Äb* Colour difference between two samples. ÄE*, ÄC*, ÄH Total colour difference and chromaticity difference and hue difference of CIE 1976 a. b . ERIC Effective Residual Ink Content. TAPPI T567pm-97 ISO/TC6/WG3/ N1116. ëD, Pe, Pc Dominant wave length, excitation purity, colorimetric purity. L, a, b Hunter’s uniform colour space (condition of colour difference formula is D65/10°). ÄL, Äa, Äb Difference of L a b in Hunter’s colour space. ÄE Colour difference (Hunter). R457, YI, ÄYI Whiteness,yellowness, change of yellowness (defined by ISO committee TC6). Rx, Ry, Rz Primary colours: red , green and blue. O, Sc, Ab Opacity, light scattering coefficient and optical absorption coefficient defined by ISO2471. WH1, WH2, WH3 Whiteness values calculated from 3 Hunter’s whiteness formulae. W86, Tw Whiteness value from CIE 1986 neutral whiteness formula and hue value from pale hue Formula. Wr, Wg Whiteness value from CIE yellowish and greenish whiteness formulae Wb, Wt, Wsp Whiteness value from Berger, Taube and Stephanson whiteness formulae Wc, Wct, Wsb Whiteness value from Croes, China Textile and Stensby whiteness formulae. Wg1, Wg2, Wg3 Whiteness value from Ganz three whiteness Formulae. CS, SS Colour difference assessment calculated for fastness to colour change and fastness to staining formulae. DE1, DE2, LSd CMC small colour difference and luminosity of 1/1 standard depth. Wcbg, Twc, ÄW Whiteness, hue value and whiteness difference between two samples from CIBA’s formulae Brightness and Color Meter