產(chǎn)品簡介
詳細介紹
TE143
ISO 446 (DIN 19051) Test pattern No. 1(sheet with 20 pattern)
The TE143 is designed to check the
readability of document reproductions. In
pattern number 84 the direction of the two
lines inside the octagon must be recognized
without problems for seven out of eight
symbols.