Chinese National Standard for O-ring (GB3452.92)
American National Standard for O-ring (AS568)
Japanese National Standard for O-ring (JIS)
British National Standard (BS) for O-ring
French National Standard for O-ring (FR)
German standard for O-ring DIN 3771-1993
GB/T 5720-2008 Test Methods for O-shaped Rubber Seals
JB/T 6658-2007 Dimensions and Tolerances of O-ring Grooves for Pneumatic Applications
JB/ZQ 4224? 97 O-ring size series
HG/T 2021-91 High temperature resistant lubricating oil O-ring material
HG/T 2333-1992 O-ring rubber materials for vacuum
HG/T 3089-2001 Fuel O-ring Materials
HG/T 2579-2008 O-ring Materials for General Hydraulic Systems
ISO 3601-1:2002 Fluid power systems – O-rings – Part 1: ID, cross section, tolerance and dimensional identification codes
ISO 3601-5:2002 Fluid power systems – Type 0 seals – Part 5: Suitability of elastomeric materials for industrial use
. GB3452.1-92: Dimension series and tolerance of O-ring for hydraulic and pneumatic use.
GB3452.2-87: Inspection Standard for Appearance Quality of O-shaped Rubber Seals.
GB3452.3: Groove Size and Design Calculation Criteria of O-shaped Rubber Sealing Ring for Hydraulic and Pneumatic Applications.
HG/T2579-94: O-ring rubber material Part I: for ordinary hydraulic system.
JISB2401-1991: O-ring specifications.