ISO 834-1-1999 amd1-2012 PDF

Full title and description

ISO 834-1:1999/Amd 1:2012 — Fire-resistance tests — Elements of building construction — Part 1: General requirements — Amendment 1 (2012). This document is Amendment 1 to ISO 834-1:1999 and provides clarifications and specific additions to the general requirements used when carrying out standardized fire‑resistance tests on building elements.

Abstract

This amendment updates test‑procedure details in ISO 834-1:1999, addressing measurement and furnace control (including thermocouple/plate thermometer arrangements), specified laboratory/ambient conditions, and requirements for furnace atmosphere and initial specimen temperatures to improve repeatability and comparability of fire‑resistance test results.

General information

• Status: Withdrawn (superseded by a later revision of ISO 834-1).
• Publication date: January 2012 (Edition 1, 2012; commonly cited date 05 January 2012).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 13.220.50 — Fire‑resistance of building materials and elements.
• Edition / version: ISO 834-1:1999/Amd 1:2012 (Amendment 1 to the 1999 part 1 edition).
• Number of pages: 2 (amendment document).

Scope

The amendment modifies and clarifies the general requirements of ISO 834-1:1999 for conducting standard fire‑resistance tests on building elements. It addresses measurement arrangements (furnace thermometry), environmental and initial specimen conditions, furnace atmosphere control for certain specimen types, and procedural controls intended to improve reproducibility of test exposures. The amendment is specific to Part 1 (general requirements) and does not replace the detailed specific‑requirements parts for particular element types.

Key topics and requirements

• Furnace thermometry: clarification of thermocouple/plate‑thermometer construction and installation for controlling and recording furnace temperatures (plate thermometers are emphasized for consistent furnace control).
• Unexposed surface and internal temperature measurement: specification of thermocouple types and locations for monitoring unexposed and internal temperatures of test specimens during exposure.
• Ambient laboratory conditions: requirement for a controlled, virtually draught‑free laboratory atmosphere and specified ambient temperature range at test commencement.
• Furnace atmosphere composition: requirement to maintain a minimum oxygen content (specified for tests on non‑combustible specimens) and to keep the fuel/air ratio constant after the last performance verification to ensure reproducible furnace behaviour.
• Specimen initial temperatures: defined limits for initial unexposed surface and internal average temperatures relative to ambient prior to the start of the exposure.

Typical use and users

Used by test laboratories, product and fire‑safety engineers, certification bodies, building regulatory authorities, and manufacturers of structural and non‑structural building elements who perform or rely on standardized fire‑resistance test results. The amendment is applied when interpreting or conducting tests to the ISO 834-1:1999 general requirements (while it was current) and by organizations referencing historical test records or converting older test data to current practice.

Related standards

This amendment relates to and amends ISO 834-1:1999 and is part of the wider ISO 834 series (Parts 1–14) covering general and specific requirements for different element types. The ISO 834-1 series has later been revised and reissued (ISO 834-1:2025 is the current published replacement). Relevant companion documents include ISO/TR 834-3 (commentary and guidance) and subsequent parts of ISO 834 that provide element‑specific test requirements; EN and ASTM standards addressing comparable fire‑resistance test curves and procedures are also commonly referenced for comparison.

Keywords

fire resistance; ISO 834-1; amendment 2012; furnace thermometry; plate thermometer; time–temperature curve; fire‑resistance test; building elements; laboratory conditions; oxygen content.

FAQ

Q: What is this standard?

A: ISO 834-1:1999/Amd 1:2012 is Amendment 1 (published in January 2012) to Part 1 (General requirements) of ISO 834, which sets out clarifications and additions to the general requirements for standardized fire‑resistance tests on building elements.

Q: What does it cover?

A: It covers procedural and measurement details that affect the standard fire exposure and data recording: furnace thermometry and control, unexposed and internal temperature measurement, laboratory ambient conditions, furnace atmosphere requirements for certain specimens, and initial specimen temperature limits.

Q: Who typically uses it?

A: Fire‑test laboratories, manufacturers, certification and conformity‑assessment bodies, fire safety engineers, and regulators—any party involved in performing, certifying or applying ISO 834‑series fire‑resistance test results.

Q: Is it current or superseded?

A: The amendment was published in 2012 but the ISO 834-1:1999 edition and its amendments have since been withdrawn and replaced by a later revision of the standard (ISO 834-1:2025). Users should apply the currently published version (ISO 834-1:2025) for up‑to‑date requirements.

Q: Is it part of a series?

A: Yes — it is part of the ISO 834 series (multiple parts addressing general and specific requirements for different types of structural and non‑structural elements); companion guidance documents (for example ISO/TR 834‑3) and later part‑specific revisions exist.

Q: What are the key keywords?

A: fire resistance, furnace thermometry, plate thermometer, time–temperature curve, building elements, ISO 834, amendment 2012, fire‑resistance testing.