NA 027
DIN Standards Committee Optics and Precision Mechanics
Standards
[CURRENT]
EN 148-2
EN 148-2
Respiratory protective devices - Threads for facepieces - Part 2: Centre thread connection
Title (German)
Atemschutzgeräte - Gewinde für Atemanschlüsse - Teil 2: Zentralgewindeanschluß
Responsible national committee
NA 027-02-04 AA - Occupational respiratory protective devices