JB/T 7944-2013
Coiled helical springs.Sampling in spection (English Version)

Standard No.

JB/T 7944-2013

Language

Chinese, Available in English version

Release Date

2013

Published By

Professional Standard - Machinery

Latest

JB/T 7944-2013

Replace

JB/T 7944-2000

Scope

This standard specifies the sampling inspection methods for cylindrical coil springs. This standard applies to cold-rolled and hot-rolled cylindrical spiral compression springs, cold-rolled cylindrical spiral tension and torsion springs. Sampling inspection of other types of springs may refer to this standard.

JB/T 7944-2013 Referenced Document

• GB/T 1805 Spring—Vocabulary*， 2021-10-11 Update
• GB/T 2828.1-2012 Inspection procedure by count sampling part 1: Lot by lot inspection sampling plan retrieved by acceptance quality limit (AQL)

JB/T 7944-2013 history

• 2013 JB/T 7944-2013 Coiled helical springs.Sampling in spection
• 2000 JB/T 7944-2000 Sampling procedures for inspection by attributes of coiled helical springs