IS 221-1977
Specification for ink liquid blue-black permanent recording

Standard No.

IS 221-1977

Release Date

1978

Published By

IN-BIS

Latest

IS 221-1977

Scope

This standard prescribes the requirements and the methods of sampling and test for ink, fluid, blue-black, for permanent records.

IS 221-1977 history

• 1978 IS 221-1977 Specification for ink liquid blue-black permanent recording