
DRAUGHTING INSTRUMENTS WITH OR WITHOUT GRADUATION - PART 1: DRAUGHTING SCALE RULES
出版:International Organization for Standardization

專家解讀視頻
Provides the main requirements and the accuracy of draughting scale rules, and their graduations in SI units. Two types of draughting scale rules are covered: those for hand use and those for manually operated draughting machines, both for professional use only.
BIS IS/ISO 9960-1 : 1992(R2001) - Identical
DIN ISO 9960-1 : 1993 - Identical
NF ISO 9960-1 : 1992 - Identical
NEN ISO 9960-1 : 1995 - Identical
NEN ISO 9960-1 : 1995 - Identical
NF ISO 9960-1 : 1992 - Identical
BIS IS/ISO 9960-1 : 1992(R2001) - Identical
DIN 32851 : 1987 - Similar to
DIN ISO 9960-1 : 1993 - Identical
DIN 32850 : 1982 - Similar to