ISO 13338:2022 PDF

Gas cylinders — Gases and gas mixtures — Determination of corrosiveness for the selection of cylinder valve outlet

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Title (English):

ISO 13338:2022

Gas cylinders — Gases and gas mixtures — Determination of corrosiveness for the selection of cylinder valve outlet

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 7
Publication date:: May 31, 2022
Edition:: ISO IS 13338 edition 3 version 1
ICS:: 23.020.35

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Description (English):

This document specifies the following, in order to determine the corrosiveness of gases and gas mixtures so that a suitable outlet connection can be assigned to each of them: — for pure gases and some liquids, a complete list indicating their corrosiveness; — for gas mixtures, a calculation method, in the absence of experimental data, relating to the corrosiveness of each of their components.

Technical details

Technical committee: ISO/TC 58/SC 2 - Cylinder fittings
SKU: ISO 13338:2022

Abstract

Overview

ISO 13338:2022 - "Gas cylinders - Gases and gas mixtures - Determination of corrosiveness for the selection of cylinder valve outlet" - defines how to determine the corrosiveness of pure gases and gas mixtures so that an appropriate cylinder valve outlet (connection) can be selected. It provides a complete corrosiveness listing for many pure gases and a calculation method for mixtures when experimental data are not available.

Key topics and technical requirements

Classification scheme
- Uses tissue corrosiveness categories: C (corrosive - irreversible damage), i (irritant - reversible damage), nc (non-corrosive/non-irritant).
- Integrates with the FTSC code subdivisions for chemical reactivity: 0 (non‑corrosive), 1 (non‑halogen acid forming), 2 (basic), 3 (halogen acid forming).
Table of pure gases
- Table 1 lists corrosiveness and FTSC subdivisions for many pure gases and some liquids that may be supplied in pressure containers.
Mixture assessment method
- Adopts an additivity approach similar to the GHS method for eye/skin damage.
- Uses generic concentration thresholds (Table 2) to classify mixtures:
  - Sum of C-components ≥ 3% → mixture classified as C
  - Sum of C-components ≥ 1% but

Related standards

Other ISO standards

Overview

Key topics and technical requirements

Classification scheme
- Uses tissue corrosiveness categories: C (corrosive - irreversible damage), i (irritant - reversible damage), nc (non-corrosive/non-irritant).
- Integrates with the FTSC code subdivisions for chemical reactivity: 0 (non‑corrosive), 1 (non‑halogen acid forming), 2 (basic), 3 (halogen acid forming).
Table of pure gases
- Table 1 lists corrosiveness and FTSC subdivisions for many pure gases and some liquids that may be supplied in pressure containers.
Mixture assessment method
- Adopts an additivity approach similar to the GHS method for eye/skin damage.
- Uses generic concentration thresholds (Table 2) to classify mixtures:
  - Sum of C-components ≥ 3% → mixture classified as C
  - Sum of C-components ≥ 1% but

ISO 13338:2022 PDF

Technical details

Abstract

Overview

Key topics and technical requirements

Related standards

Abstract

Overview

Key topics and technical requirements

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