DIN TS 31018-1 2024-05 PDF

Full title and description

STB DIN/TS 31018-1:2024-05 — Determination methods for safety-related parameters of explosion protection for hybrid mixtures of substances — Part 1: Gases. This technical specification defines laboratory test methods and reporting formats to characterise explosion-related parameters for gas-containing hybrid mixtures used in explosion-hazard assessments.

Abstract

This Technical Specification (DIN/TS 31018-1:2024-05) gives standardized methods to determine safety-relevant explosion parameters for hybrid mixtures where gases are present (e.g., determination of flammability limits and pressure/pressure-rise characteristics under defined test conditions). The document is intended to support consistent data generation for risk assessment, design of protective measures and harmonised reporting between test laboratories and industry users.

General information

• Status: Technical Specification / Prestandard (DIN/TS) — active adoption published May 2024.
• Publication date: May 2024 (designation: 2024-05).
• Publisher: Deutsches Institut für Normung (DIN).
• ICS / categories: 13.230 — Explosion protection (environment, health and safety classification).
• Edition / version: DIN/TS 31018-1:2024-05 (first published edition as TS).
• Number of pages: 18 pages (electronic PDF / print formats reported by standards resellers).

Scope

The specification covers test procedures and measurement/reporting requirements to determine safety-related explosion parameters for hybrid mixtures in which gases (or vapours) contribute to explosibility. It is focused on gases (Part 1) and is intended to provide reproducible laboratory methods for parameters used in explosion-hazard analyses and the design of protective measures. The scope does not replace general area-classification rules or equipment selection standards but supplies material-characteristic data to be used alongside those standards.

Key topics and requirements

• Standardised laboratory procedures for preparing and testing gas-containing hybrid mixtures (test atmosphere preparation and ignition control).
• Determination and reporting of flammability limits (LEL/UEL) and concentration-dependent behaviour for gases in hybrid mixtures.
• Measurement of explosion pressure characteristics (maximum explosion overpressure Pmax and pressure-rise behaviour) under defined vessel/test conditions.
• Guidance on data presentation, uncertainty and applicability for use in dust/gas hybrid scenarios (highlighting limitations and recommended use in hazard analyses).
• References to related test methods and equipment considerations (choice of vessel, ignition energy, instrumentation and interpretation of results).

Typical use and users

Used by industrial process safety engineers, independent test laboratories, explosion-protection specialists, equipment designers and regulatory bodies to obtain consistent material-characteristic data for risk assessments, protective-system design (venting, suppression, containment) and compliance documentation. It is also used by manufacturers and consultants who perform dust/gas hazard studies and safety audits.

Related standards

Relevant complementary or related standards include IEC/ISO material-characteristics standards for gases (historically IEC 60079-20-1 / now ISO/IEC 80079-20-1 for gas/vapour material characteristics), EN/ISO and EN series for dust explosivity testing (for dust-cloud parameters e.g., EN 14034 series) and national guidance such as VDI documents on dust explosion protection. DIN/TS 31018-1 is intended to be used alongside these established test-method and hazardous-atmosphere standards.

Keywords

Explosion protection; hybrid mixtures; gases; flammability limits; Pmax; pressure-rise; test methods; technical specification; DIN/TS; material characteristics; laboratory testing.

FAQ

Q: What is this standard?

A: DIN/TS 31018-1:2024-05 is a Technical Specification that defines laboratory methods to determine safety-related explosion parameters for mixtures where gases are present (Part 1 covers gases).

Q: What does it cover?

A: It covers test preparation, measurement procedures and reporting formats for parameters such as flammability limits and pressure/pressure-rise characteristics (data used in explosion-hazard assessments). It provides guidance on test apparatus, measurement practice and limitations of results.

Q: Who typically uses it?

A: Process safety engineers, accredited test laboratories, explosion-protection consultants, equipment manufacturers and regulators who need harmonised material-characteristic data for risk assessments and design of protective measures.

Q: Is it current or superseded?

A: The document is published as DIN/TS 31018-1:2024-05 (May 2024) and replaces earlier draft/pre‑standard publications of the same number; it is the current Technical Specification edition as of that publication. Users should check the issuing body (DIN) for any subsequent amendments or revisions.

Q: Is it part of a series?

A: Yes — this is Part 1 (Gases) of the DIN TS 31018 series addressing determination methods for safety parameters of hybrid mixtures; further parts may address other media (e.g., dusts or combined scenarios) or complementary test methods. Users should consult DIN catalogues or the document foreword for the complete series.

Q: What are the key keywords?

A: Explosion protection; hybrid mixtures; gases; flammability limits (LEL/UEL); maximum explosion pressure (Pmax); pressure-rise; test methods; DIN TS.