ISO 15859-12-2004 PDF

Full title and description

Space systems — Fluid characteristics, sampling and test methods — Part 12: Carbon dioxide. This International Standard specifies limits for the composition of carbon dioxide (CO2) and establishes the sampling and test requirements applicable for verification of carbon dioxide used for purging and pressurization of space systems (flight hardware and ground support equipment).

Abstract

ISO 15859-12:2004 defines composition limits, sampling procedures and test methods for carbon dioxide (gaseous or liquid) intended for use in spacecraft and launch-vehicle ground support systems. It is intended to ensure that CO2 introduced into launch vehicles or spacecraft meets specified purity limits or any technical specification agreed for a particular application, and to provide guidance for sampling operations used to verify compliance.

General information

• Status: Published.
• Publication date: June 2004 (edition 1 — published 9 June 2004 reported by distributors).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 49.140 (Space systems and operations).
• Edition / version: Edition 1 (2004).
• Number of pages: 4 (official ISO catalogue entry lists 4 pages; some national/adoption documents list alternative pagination for national publications).

Scope

Applies to composition, sampling and test methods for carbon dioxide used for purging and pressurization in space systems and associated ground support facilities, systems and equipment. The standard covers gaseous and liquid CO2 and any sampling operation required to verify that fluid composition complies with the limits given in the standard or any additional technical specification agreed for a specific use.

Key topics and requirements

• Defined maximum impurity limits for carbon dioxide intended for space-system purge and pressurization.
• Requirements for representative sampling of CO2 (gaseous and liquid) prior to introduction into flight hardware or ground-support systems.
• Specified test methods for verifying CO2 composition and detecting key contaminants.
• Guidance on application of limits to influent supplies and on compliance verification procedures.
• Compatibility with other parts of the ISO 15859 series addressing different fluids and test methods for space systems.

Typical use and users

Used by spacecraft systems engineers, propulsion and environmental control teams, ground-support equipment designers, test and quality assurance laboratories, procurement specialists specifying gas supplies, and safety/compliance personnel responsible for launch and ground operations. Typical applications include specification and verification of CO2 used for purging, pressurizing tanks or systems, and routine sampling/testing of supply lines before integration with flight hardware.

Related standards

Part of the ISO 15859 series (Space systems — Fluid characteristics, sampling and test methods). Related parts cover other fluids such as oxygen, hydrogen, nitrogen, ammonia and breathing air (for example ISO 15859-1, -2, -11, -13, etc.) and other ISO standards addressing gas contamination and space-system test methods. National adoptions (e.g., BS ISO 15859-12:2004) may be published by national bodies.

Keywords

ISO 15859-12, carbon dioxide, CO2, space systems, fluid characteristics, sampling, test methods, purge, pressurization, spacecraft, ground support, fluid composition, gas purity.

FAQ

Q: What is this standard?

A: ISO 15859-12:2004 is an International Standard that specifies composition limits and the sampling and test methods for carbon dioxide used in space systems for purging and pressurization.

Q: What does it cover?

A: It covers permissible impurity limits for CO2, procedures for representative sampling (liquid and gaseous), and analytical/test methods to verify that supplied CO2 meets required composition limits prior to use with spacecraft or ground-support equipment.

Q: Who typically uses it?

A: Spacecraft engineers, test laboratories, ground-support and launch facility operators, procurement and quality-assurance teams, and safety engineers involved in handling and supplying CO2 for space applications.

Q: Is it current or superseded?

A: As listed in the ISO catalogue the standard was published in 2004 and has been subject to periodic review. Users should check the ISO catalogue or their national standards body to confirm the current lifecycle status before relying on it for procurement or certification activities.

Q: Is it part of a series?

A: Yes — it is Part 12 of the ISO 15859 series (Space systems — Fluid characteristics, sampling and test methods), which includes multiple parts covering different fluids and related test methods.

Q: What are the key keywords?

A: Carbon dioxide, CO2, space systems, sampling, test methods, fluid composition, purge, pressurization, ISO 15859.