Inks. Printing inks

# ICS Title
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JS 620:1989 Ink - Test methods for writing inks

Concerns testingmethods for writing inks (Published Document (JS))

JS 619:1989 Ink - Printing inks (letterpress and offset)

Specifiesthe requirements for printing inks (letterpress and offset) which maybe divided to three basic colors: yellow, blue and purple red (Published Document (JS))

JS 621:1989 Ink - Blue black ink for writing

Specifies therequiremets for liquid blue black ink used in writing pens (Published Document (JS))