48B BRIGHTNESS TESTER INTRODUCTION The instrument is mainly used to test the whiteness of diversified objects such as paper and board, pulps and chemical fiber, textile, plastic, ceramic , enamel, fecula, salt, white cerement, porcelain clay and French chalk, etc. It can also be used to test the optical performance of sheet materials, for example, opacit y test. APPLICATIONS Paper, Board, Pulps, Chemical fiber, Textile, Plastic, Ceramic, Enamel, Fecula, Salt, White cerement, Porcelain clay and French chalk etc. STANDARDS Meets ISO 2469, ISO 2470, ISO 2471, GB/T 7933, GB/T7974, GB/T 8940.2, GB/T 1840, GB/T 2913, GB/T 13025.2,GB/T 1543, ISO 2471, GB/T 10339, GB/T 5950 Etc. MSN:zhongqinghengwei@ TEL:86-0311-87777359 FAX:86-0311-87739979