PD 6488:1979

Foreword
Cooperating organizations
1 Scope
2 Abbreviations of national standards bodies
3 Codes for the representation of names of countries
Tables
1 Nominal dimensions, designations, and references in
   national standards
2 Valve outlets for toxic gases
3 Valve outlets for flammable gases
4 Valve outlets for oxidizing gases

Lists gas cylinder valve outlets in use within the countries of ISO member bodies. Its purpose is to prevent further proliferation. Only provides details of thread type and size. For a more complete description of a particular valve outlet, reference should be made to the corresponding national standard.