---
title: "ETSO-2C512 ETSO-C2C512 — CS-ETSO · Avioverse"
description: "Portable Gaseous Oxygen Supply (PGOS) 1 Applicability This ETSO gives the requirements which the Portable Gaseous Oxygen Supply that are manufactured on…"
url: "https://avioverse.aero/regulations/easa/cs-etso/subpart-b/etso-2c512"
---

# ETSO-2C512 ETSO-C2C512

European Technical Standard Orders (CS-ETSO) · CS-ETSO · EAR revision 1 Oct 2026

IR Implementing rule

## ETSO-2C512 ETSO-C2C512

Portable Gaseous Oxygen Supply (PGOS)

1 Applicability

This ETSO gives the requirements which the Portable Gaseous Oxygen Supply that are manufactured on or after the date of this ETSO must meet in order to be identified with applicable ETSO marking.

2 Procedures

2.1 General

Applicable procedures are detailed in CS-ETSO Subpart A.

2.2 Specific

None.

3 Technical Conditions

3.1 Basic

3.1.1 Minimum Performance Standard

Standards set forth in the Society of Automotive Engineers (SAE), Inc, Document Aerospace Standard (AS) no AS 1046, “Minimum Standard for Portable Gaseous Oxygen Equipment”, Rev. B, dated 13 September 1989.

3.1.2 Environmental Standard

The equipment must be tested according to the applicable environmental standards contained in EUROCAE ED-14E (RTCA/DO-160E) “Environmental Conditions and Test Procedures for Airborne Equipment” from March 2005.

3.1.3 Computer Software

None.

3.2 Specific

3.2.1 Proof and Ultimate Strength Factors

For proof and ultimate strength factors CS 25.1453(a) shall apply.

4 Marking

4.1 General

Marking is detailed in CS-ETSO Subpart A paragraph 1.2.

4.2 Specific

As per AS 1046 Rev. B, dated 13 September 1989.

5 Availability of Referenced Document

See CS-ETSO Subpart A paragraph 3

\[Amdt ETSO/3]

IR · ETSO-2C512 — CS-ETSO · ED Decision 2008/012/R · CS-ETSO Easy Access Rules · EAR revision 1 Oct 2026

[All rules in SUBPART B – LIST OF ETSOs](https://avioverse.aero/regulations/easa/cs-etso/subpart-b)

Consolidated from the EASA Easy Access Rules (revision 1 Oct 2026, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.