EN ISO 6142-1:2015/prA1

• Status: Not Published
• Publication Date: 09-Feb-2027
• ICS: 71.040.40 - Chemical analysis
• Technical Committee: CEN/TC 238 - Test gases, test pressures and categories of appliances
• Current Stage: 4020 - Submission to enquiry - Enquiry
• Start Date: 06-Aug-2026
• Due Date: 17-Feb-2026
• Completion Date: 06-Aug-2026
• Ref Project: SIST EN ISO 6142-1:2015/oprA1:2026 - Gas analysis - Preparation of calibration gas mixtures - Part 1: Gravimetric method for Class I mixtures - Amendment 1: Corrections to formulae in Annex E and Annex G (ISO 6142-1:2015/Amd 1:2020)

• Amends: EN ISO 6142-1:2015 - Gas analysis - Preparation of calibration gas mixtures - Part 1: Gravimetric method for Class I mixtures (ISO 6142-1:2015)
• Effective Date: 27-May-2026

Overview

EN ISO 6142-1:2015/prA1 is an important standard amendment published by the European Committee for Standardization (CEN), addressing the preparation of calibration gas mixtures using the gravimetric method for Class I mixtures. This amendment, aligned with ISO 6142-1:2015/Amd 1:2020, specifically corrects formulae in Annex E and Annex G, improving the accuracy of calculations critical for gas analysis applications.

Calibration gas mixtures are essential for analytical laboratories, quality assurance, and industries that rely on precise gas measurements. This standard amendment ensures enhanced reliability and traceability in the preparation process by updating key mathematical expressions used in gravimetric calculations.

Key Topics

• Gravimetric method for calibration gas mixtures: Utilized for preparing high-accuracy reference standards for gas analysis.
• Corrections to formulae: Updates and clarifies crucial calculations in Annex E and Annex G, directly affecting the precision of Class I mixture preparation.
• Traceability and accuracy: Reinforces confidence in certified reference materials used for gas analysis across diverse sectors.
• Standardization of gas mixture preparation: Promotes international consistency and comparability in laboratory and industrial environments.

Applications

EN ISO 6142-1:2015/prA1 plays a pivotal role in several practical applications:

• Analytical laboratories: Enables the preparation of accurate calibration gas mixtures, which are critical for the calibration and validation of analytical instruments like gas chromatographs, mass spectrometers, and other gas analyzers.
• Environmental monitoring: Supports accurate atmospheric measurements by ensuring calibration gases meet international gravimetric standards, helping monitor and control air quality.
• Process industries: Used in sectors such as petrochemicals, energy, and manufacturing, where precise gas mixtures are required for safety, process control, and product quality assurance.
• Compliance and quality assurance: Facilitates adherence to regulatory requirements and industry best practices related to gas mixture preparation and use.
• Research and development: Provides a reliable framework for experimental work that demands highly accurate gas mixture compositions.

Related Standards

For a comprehensive approach to gas analysis and calibration, consider these closely connected standards:

• ISO 6142-1:2015: The core international standard for the gravimetric preparation of calibration gas mixtures, outlining general principles and procedures.
• ISO 6141: Details requirements for the certification and documentation of calibration gas mixtures.
• ISO 6145 (series): Covers various dynamic methods for accurate gas mixture preparations.
• ISO 10723: Focuses on the performance evaluation of gas analysis systems.
• ISO 7504: Specifies terminology and definitions relevant to gas analysis.

Practical Value

Implementing EN ISO 6142-1:2015/prA1 helps ensure that calibration gas mixtures are prepared with the highest degree of accuracy using updated, internationally recognized methods. This amendment fosters trust in measurement results, supports compliance with quality standards, and underpins safety and reliability in analytical measurements across industries. By maintaining alignment with international best practices, laboratories and organizations benefit from improved process control, data comparability, and regulatory acceptance of their results.

Keywords: EN ISO 6142-1, calibration gas mixtures, gravimetric method, gas analysis standard, formula corrections, analytical laboratories, traceability, process industry, CEN standard, ISO gas analysis.

SLOVENSKI STANDARD
01-september-2026
Analiza plinov - Priprava kalibracijskih plinskih zmesi - 1. del: Gravimetrijska
metoda za zmesi razreda I - Dopolnilo A1: Popravki enačb v Dodatku E in Dodatku
G (ISO 6142-1:2015/Amd 1:2020)
Gas analysis - Preparation of calibration gas mixtures - Part 1: Gravimetric method for
Class I mixtures - Amendment 1: Corrections to formulae in Annex E and Annex G (ISO
6142-1:2015/Amd 1:2020)
Gasanalyse - Herstellung von Kalibriergasen - Teil 1: Wägeverfahren für Gemische der
Klasse I - Änderung 1 (ISO 6142-1:2015/Amd 1:2020)
Analyse des gaz - Préparation des mélanges de gaz pour étalonnage - Partie 1:
Méthode gravimétrique pour les mélanges de Classe I - Amendement 1: Correction des
formules à l'Annexe E et à l'Annexe G (ISO 6142-1:2015/Amd 1:2020)
Ta slovenski standard je istoveten z: EN ISO 6142-1:2015/prA1
ICS:
71.040.40 Kemijska analiza Chemical analysis
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL ISO
STANDARD 6142-1
First edition
2015-08-01
AMENDMENT 1
2020-12
Gas analysis — Preparation of
calibration gas mixtures —
Part 1:
Gravimetric method for Class I
mixtures
AMENDMENT 1: Corrections to formulae
in Annex E and Annex G
Analyse des gaz — Préparation des mélanges de gaz pour
étalonnage —
Partie 1: Méthode gravimétrique pour les mélanges de Classe I
AMENDEMENT 1: Correction des formules à l'Annexe E et à l'Annexe G
Reference number
ISO 6142-1:2015/Amd.1:2020(E)
©
ISO 2020
ISO 6142-1:2015/Amd.1:2020(E)
© ISO 2020
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ISO 6142-1:2015/Amd.1:2020(E)
Foreword
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