ISO 22991:2004

Name: ISO 22991:2004 — Gas cylinders — Transportable refillable welded steel cylinders for liquefied petroleum gas (LPG) — Design and construction
SKU: ISO 22991:2004
Price: 55800 RUB
Availability: InStock

Gas cylinders — Transportable refillable welded steel cylinders for liquefied petroleum gas (LPG) — Design and construction

Название (английский):

ISO 22991:2004

Gas cylinders — Transportable refillable welded steel cylinders for liquefied petroleum gas (LPG) — Design and construction

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 31
Дата публикации:: 4 мая 2004 г.
Издание:: ISO IS 22991 edition 1 version 1
ICS:: 23.020.30

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Цена:55 800 ₽

Описание (английский):

ISO 22991:2004 specifies minimum requirements concerning material, design, construction and workmanship, procedure and test at manufacture of transportable refillable welded steel liquefied petroleum gas (LPG) cylinders of water capacity up to and including 150 l, exposed to ambient temperatures.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 22991:2004 - Gas cylinders: Transportable refillable welded steel cylinders for liquefied petroleum gas (LPG) - Design and construction - defines minimum requirements for the design, materials, construction, testing and manufacture of transportable, refillable welded steel LPG cylinders of water capacity up to and including 150 L, intended for service at ambient temperatures. The document supports safe, consistent production and type approval of LPG cylinders used in commercial and consumer applications.

Key topics and requirements

Scope and applicability

Covers welded steel, transportable and refillable LPG cylinders (≤150 L water capacity) exposed to ambient temperatures.

Materials

Shell and end-pressing materials shall conform to ISO 4978 or an equivalent specification.
Chemical limits in the standard (cast analysis) include: C ≤ 0.22%, Si ≤ 0.45%, Mn ≤ 1.60%, P ≤ 0.025%, S ≤ 0.020%, and P+S ≤ 0.040%. Micro-alloying limits for niobium, titanium and vanadium are specified.
Traceability: manufacturers must keep ladle analyses and mechanical property certificates and maintain material identification.

Design and calculation

Prescribes calculation methods for minimum wall thickness of cylindrical shells and ends based on yield stress, calculation pressure (Pc), geometry and shape factors.
Calculation pressure: 15 bar for commercial butane-only cylinders; 30 bar for other LPG cylinders.
Factors such as the weld stress-reduction factor J (J = 0.9 for longitudinal-weld cylinders; J = 1.0 for seamless-type) and shape factor C for end geometry are used.

Construction and welding

Welding procedure and welder qualification requirements (references to ISO welding standards).
Requirements for workmanship, tolerances, heat treatment, valve protection and closure of openings.

Testing and acceptance

Mechanical tests, tensile and bend tests, burst (hydraulic) tests, pressure tests, radiographic and macroscopic examination, visual weld inspection, and pressure cycling (fatigue) tests.
Batch testing, failure handling, type approval, marking and certification requirements are included.

Applications and users

Cylinder manufacturers and fabricators designing and producing welded steel LPG cylinders.

Certification and approval bodies performing type approval, batch testing and conformity assessment.

Design engineers, safety/compliance officers, testing laboratories, and regulators responsible for pressure-vessel safety and LPG distribution.

Buyers and specifiers seeking internationally harmonized requirements for safe, refillable LPG containers.

Related standards

Normative and referenced standards include ISO 4978 (materials), ISO 13769 (stamp marking), ISO 10920 / ISO 11116 (valve threads), and welding and NDT standards such as ISO 9606-1, ISO 1106, ISO 17637 and ISO 5817.

Keywords: ISO 22991:2004, LPG cylinders, welded steel cylinders, transportable refillable, cylinder design, cylinder testing, pressure calculations, manufacturing standards.

ISO 22991:2004

Abstract

Похожие стандарты

Overview

Key topics and requirements

Applications and users

Related standards

Технические детали

ISO 4978:1983

Flat rolled steel products for welded gas cylinders

BS EN ISO 13769:2018-TC

Tracked Changes. Gas cylinders. Stamp marking.

ISO 10920:1997

Gas cylinders — 25E taper thread for connection of valves to gas cylinders — Specification

BS EN ISO 11116-1:1999

Gas cylinders. 17E taper thread for connection of valves to gas cylinders - Specifications

ISO 9606-1:2012/Cor 2:2013

Qualification testing of welders — Fusion welding — Part 1: Steels — Technical Corrigendum 2

SIST EN ISO 11063:2020

Soil quality - Direct extraction of soil DNA (ISO 11063:2020)

BS EN ISO 17637:2016

Non-destructive testing of welds. Visual testing of fusion-welded joints.

ISO 5817:2023

Welding — Fusion-welded joints in steel, nickel, titanium and their alloys (beam welding excluded) — Quality…