ISO TS 29041-2008 cor1-2009 PDF

Full title and description

ISO/TS 29041:2008/Cor 1:2009 — Gas mixtures — Gravimetric preparation — Mastering correlations in composition — Technical Corrigendum 1. This one-page technical corrigendum provides corrections and clarifications to the original ISO/TS 29041:2008 Technical Specification on gravimetric preparation of gas mixtures.

Abstract

ISO/TS 29041:2008 investigates gravimetric mixture preparation (as described in ISO 6142) and examines a priori influences and correlations introduced by data processing using an example mixture (a synthetic natural gas composition). The 2009 corrigendum (Cor 1) amends the 2008 text to correct technical/typographical errors and to clarify details in calculations, tables or references as required; the corrigendum itself is published as a single page.

General information

• Status: Published (Technical Corrigendum to ISO/TS 29041:2008).
• Publication date: 2009-02-02 (February 2, 2009).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 71.040.40 (Chemical analysis).
• Edition / version: Corrigendum — Edition 1 (applies to ISO/TS 29041:2008, Edition 1).
• Number of pages: 1 (corrigendum document).

Scope

The corrigendum provides targeted technical corrections and clarifications to ISO/TS 29041:2008, which addresses gravimetric preparation of gas mixtures and the assessment of correlations in composition and uncertainty contributions when preparing complex reference mixtures (example: synthetic natural gas composition). The corrigendum does not replace the main Technical Specification but amends it where errors or ambiguities were identified. For the complete corrected wording, consult the corrigendum text itself.

Key topics and requirements

• Gravimetric preparation methodology for gas mixtures (based on ISO 6142) and recommended weighing sequences.
• Analysis and management of correlations introduced by data processing when deriving mixture composition.
• Estimation of uncertainty contributions for gravimetric mixture preparation and purity considerations for component gases.
• Technical corrections and clarifications to equations, tables, references or textual items in the 2008 Technical Specification (as issued in the 2009 corrigendum).

Typical use and users

Primary users are metrology laboratories, calibration gas producers, gas analysis laboratories, and standards bodies involved in preparation and certification of reference gas mixtures. The document is used when implementing gravimetric preparation procedures, evaluating uncertainty and managing composition correlations in complex gas mixtures.

Related standards

Closely related standards and references include ISO 6142 (gravitimetric preparation of gas mixtures), and other gas-analysis and calculation standards cited in ISO/TS 29041:2008 (for example, standards covering gas composition calculations and uncertainty evaluation). Cross-references commonly noted with this Technical Specification include ISO 6976 and ISO 14912 in related bibliographies.

Keywords

gas mixtures; gravimetric preparation; corr. (corrigendum); composition correlations; uncertainty; synthetic natural gas; reference gases; ISO/TS 29041; ISO 6142.

FAQ

Q: What is this standard?

A: This is ISO/TS 29041:2008/Cor 1:2009 — a technical corrigendum (one page) published in February 2009 that amends ISO/TS 29041:2008 (Gas mixtures — Gravimetric preparation — Mastering correlations in composition).

Q: What does it cover?

A: It supplies corrections and clarifications to the original 2008 Technical Specification, which covers gravimetric preparation of gas mixtures, the handling of correlations introduced by data processing, example procedures for preparing a synthetic natural gas mixture, and uncertainty considerations. The corrigendum itself addresses specific errors or ambiguous items in that text.

Q: Who typically uses it?

A: Metrology and calibration laboratories, manufacturers of calibration/reference gas mixtures, analytical laboratories performing gas analysis, and standards committees that apply or reference ISO/TS 29041.

Q: Is it current or superseded?

A: The corrigendum was published and is shown as published/present on ISO records (published February 2009). It is a corrective amendment to the 2008 Technical Specification; users should check the ISO catalogue or national standards body for any later revisions, amendments or confirmations of the main Technical Specification.

Q: Is it part of a series?

A: Yes — it is a corrigendum to the ISO/TS 29041 series entry (the main document ISO/TS 29041:2008). The main Technical Specification references and aligns with other ISO gas-analysis and gravimetric preparation standards (for example ISO 6142).

Q: What are the key keywords?

A: Gravimetric preparation, gas mixtures, correlations, uncertainty, reference gases, corrigendum, ISO/TS 29041.