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Overview
This document specifies the characteristics and dimensions for interchangeable (designation NS) stopcocks for vacuum with nominal sizes 3 to 10. Annex A describes the special form of a plug. This standard has been prepared by Working Committee NA 055-01-03 AA Glasgeräte und Apparate ("Glassware and glass apparatus") at DIN Standards Committee Laboratory Devices and Installations (FNLa).
Please get in touch with the relevant contact person at DIN if you have problems understanding the content of the standard or need advice on how to apply it.