IS 1561-1962
Square specifications used in drafting offices

Standard No.

IS 1561-1962

Release Date

1962

Published By

IN-BIS

Latest

IS 1561-1962

Scope

This standard covers requirements for two types of fixed angle set squares, namely, (a) 45 degree — 45 degree, and (b) 60 degree—30 degree complementary angles; commonly used by cartographers, surveyors and engineers.

IS 1561-1962 history

• 1962 IS 1561-1962 Square specifications used in drafting offices