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 9957-2:1995Stage: 95.99
Got a question?
Check out our FAQs
+41 22 749 08 88
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)
Keep up to date with ISO
Sign up to our newsletter for the latest news, views and product information.