Specifies the requirements and test conditions for water-based non-India inks intended for use in draughting instruments and intended for use on natural tracing paper conforming to ISO 9961, to provide for black line technical drawings.
ISO 9957-2:1995 history
2019ISO 9957-2:2019 Fluid draughting media — Part 2: Water-based non-India ink — Requirements and test conditions
1995ISO 9957-2:1995 Fluid draughting media - Part 2: Water-based non-India ink - Requirements and test conditions