ISO 3500:2005

INTERNATIONAL ISO
STANDARD 3500
Third edition
2005-11-01
Gas cylinders — Seamless steel CO
cylinders for fixed fire-fighting
installations on ships
Bouteilles à gaz — Bouteilles à CO en acier, sans soudure, pour
installations fixes de lutte contre l'incendie à bord des navires

Reference number
©
ISO 2005
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Foreword
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(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
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Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
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ISO 3500 was prepared by Technical Committee ISO/TC 58, Gas cylinders, Subcommittee SC 3, Cylinder
design.
This third edition cancels and replaces the second edition (ISO 3500:1990), which has been technically
revised.
INTERNATIONAL STANDARD ISO 3500:2005(E)

Gas cylinders — Seamless steel CO cylinders for fixed
fire-fighting installations on ships
1 Scope
This International Standard specifies the principal external dimensions, accessories, filling ratio, and marking
for seamless steel CO cylinders used in fixed fire-fighting installations on cargo ships, passenger ships,
salvage vessels, heavy lift vessels, tug barge combinations and off shore drilling and production platforms,
any of which can be serviced in port or in drydock, in order to facilitate the interchangeability of such cylinders.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 9809-1:1999, Gas cylinders — Refillable seamless steel gas cylinders — Design, construction and
testing — Part 1: Quenched and tempered steel cylinders with tensile strength less than 1 100 MPa
ISO 9809-2:2000, Gas cylinders — Refillable seamless steel gas cylinders — Design, construction and
testing — Part 2: Quenched and tempered steel cylinders with tensile strength greater than or equal to
1 100 MPa
ISO 9809-3:2000, Gas cylinders — Refillable seamless steel gas cylinders — Design, construction and
testing — Part 3: Normalized steel cylinders
ISO 10920:1997, Gas cylinders — 25E taper thread for connection of valves to gas cylinders — Specification
ISO 13769, Gas cylinders — Stamp marking
DIN 477-1, Gas cylinder valves rated for test pressures up to 300 bar; types, sizes and outlets
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
tare
combined mass, expressed in kilograms, of the empty cylinder (including the mass of any paint), neck collar,
valve and siphon tube when presented for filling
3.2
permissible filling ratio
maximum permissible mass of carbon dioxide in kilograms per litre of cylinder water capacity
4 General characteristics
4.1 Cyli
...