National Metrological Technical Specifications of the People's Republic of China
Replace
JJF(纺织)012-2006
Scope
This calibration specification stipulates the calibration method of the blackboard machine. It is applicable to the calibration of the newly manufactured, in-use and repaired Y381, Y381A, and YG381 blackboard machines. Other models of blackboard machines and blackboards of different specifications can be implemented as a reference.
JJF(纺织) 012-2013 Referenced Document
GB/T 9996.1-2008 Determination of appearance quality of yarns made of cotton or man-made fibers,or their blends by winding on the black board.Part 1:Comprehensive assessment
GB/T 9996.2-2008 Determination of appearance quality of yarns made of cotton or man-made fibers,or their blends by winding on the black board.Part2:Individual assessment