Printed standard reference material card of calibrated color patches used by agencies, printers, and publishers to check the spectral response of wide-band reflection densitometers, thereby permitting users to control color reproduction quality

'agenc':12 'band':24 'calibr':7 'card':5 'check':17 'color':8,32 'control':31 'densitomet':26 'materi':4 'patch':9 'permit':28 'print':1 'printer':13 'publish':15 'qualiti':34 'refer':3 'reflect':25 'reproduct':33 'respons':20 'spectral':19 'standard':2 'therebi':27 'use':10 'user':29 'wide':23 'wide-band':22

T-REF

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