SY/T 5415-1991
Evaluation Method of Roller Cone Bit Wear (English Version)

Standard No.

SY/T 5415-1991

Language

Chinese, Available in English version

Published By

Professional Standard - Petroleum

Status

Be replaced 2003-08

Replace By

SY/T 5415-2003

Latest

SY/T 5415-2012

SY/T 5415-1991 history

• 2012 SY/T 5415-2012 Use and dull grading system of bits
• 2003 SY/T 5415-2003 Use and dull grading system of bits
• 1970 SY/T 5415-1991 Evaluation Method of Roller Cone Bit Wear