ISO 10351-1992 PDF

Full title and description

ISO 10351:1992 — Plastics — Determination of the combustibility of specimens using a 125 mm flame source. This international standard specifies a small-scale test method to assess the combustibility (burning behaviour) of plastic specimens when exposed to a 125 mm flame source for comparative evaluation and materials prescreening.

Abstract

ISO 10351:1992 defines a laboratory procedure and apparatus configuration for exposing standard-shaped plastic specimens to a 125 mm test flame and for recording their reaction (ignition, flaming, after‑flame, dripping, extent of burn) to provide reproducible, comparable combustibility data for materials selection, classification and pre‑screening. The document has been withdrawn and its test content was incorporated into later IEC test-flame documents.

General information

• Status: Withdrawn (superseded by IEC 60695-11-20 series).
• Publication date: 25 November 1992 (ISO publication: Nov 1992).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 13.220.40 (Ignitability and burning behaviour of materials and products) and 83.080.01 (Plastics in general).
• Edition / version: Edition 1 (1992).
• Number of pages: 11 (ISO catalogue entry lists 11 pages; some reprints/national publications may show minor differences in page count).

Scope

This standard covers a procedure for conducting small-scale combustibility tests on shaped plastic specimens using a 125 mm flame source. It is intended for material prescreening and comparative evaluation of burning behaviour under the specified test conditions, not as a full product fire-hazard assessment. The standard was later cancelled and its relevant test methods incorporated into IEC 60695-11-20 and related fire-hazard test documents.

Key topics and requirements

• Definition of specimen shape and size for combustibility testing.
• Specification of a 125 mm flame source and test-apparatus configuration.
• Detailed test procedure: exposure time, observation of ignition, flaming and after‑flame, dripping and extent of burning.
• Criteria and reporting format for recording combustibility behaviour and test results.
• Use as a prescreening / comparative method rather than as a definitive product-level fire-safety classification.

Typical use and users

Material testing laboratories, plastics manufacturers, product designers and safety engineers use this test to prescreen materials for flammability/combustibility characteristics during product development, material selection and quality control. Regulatory or full product hazard evaluations normally rely on additional or different, larger-scale fire tests.

Related standards

IEC 60695-11-20 (Test flames) — this IEC document incorporates and replaces the test elements of ISO 10351. Other related test methods and comparators include the IEC 60695 series on fire hazard testing and national/industry methods for plastics flammability (for example UL 94 for flammability classification).

Keywords

ISO 10351, combustibility, plastics, flame test, 125 mm flame, burning behaviour, flammability prescreening, ISO/TC 61, fire hazard testing.

FAQ

Q: What is this standard?

A: ISO 10351:1992 is an ISO test method titled "Plastics — Determination of the combustibility of specimens using a 125 mm flame source" that describes a small-scale procedure to assess how plastic specimens react to a 125 mm test flame.

Q: What does it cover?

A: It covers specimen definitions, test apparatus (125 mm flame source), the test procedure and the observations and reporting needed to record combustibility behaviour for comparative evaluation and material prescreening. It is not intended as a full product fire-hazard test.

Q: Who typically uses it?

A: Material testing laboratories, plastics producers and product designers use this method for prescreening materials and for comparative evaluation during development and quality control.

Q: Is it current or superseded?

A: ISO 10351:1992 has been withdrawn and its test content was superseded and incorporated into IEC 60695-11-20 (1999 and later revisions). Users should refer to the IEC 60695 series or current national/regional standards for the applicable, up‑to‑date test method.

Q: Is it part of a series?

A: The standard sat within the general ISO work on plastics burning behaviour (ISO/TC 61/SC 4). After withdrawal, its subject matter became part of the IEC fire-hazard testing series (IEC 60695 and related parts).

Q: What are the key keywords?

A: Plastics, combustibility, 125 mm flame, burning behaviour, flammability prescreening, fire hazard testing.