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GB/T 42924.4-2023Plastics - Smoke generation - Determination of the corrosivity of fire effluents - Part 4: Dynamic decomposition method using a conical radiant heater (English PDF)

塑料烟雾产生燃烧流腐蚀性的测定第4部分:使用锥形腐蚀计的动态分解法

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

August 6, 2023

Implementation date

March 1, 2024

Scope

GB/T 42924.4-2023 is the English-translated version of 塑料烟雾产生燃烧流腐蚀性的测定第4部分:使用锥形腐蚀计的动态分解法.

GB/T 42924.4-2023 is the Chinese standard "Plastics - Smoke generation - Determination of the corrosivity of fire effluents - Part 4: Dynamic decomposition method using a conical radiant heater".

Its scope clause reads: This document describes a method for determining the corrosive effects of combustion emissions from plastic materials or products by measuring metal loss in electrodes.

This document can be used to evaluate materials or products and provide data to assist product design, development and research. The corrosion results provided in this document are obtained from plastic materials or products with dimensions not exceeding 100mm × 100mm.

The results are consistent with actual results. The correlation to international fires is unclear. This method determines the extent of corrosion by measuring the increase in resistance of a metal circuit.

Increased resistance and metal loss due to corrosion further This results in a reduction in the conductive cross-sectional area. Its clauses include normative reference documents.

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Document preview — GB/T 42924.4-2023

National Standard of the People's Republic of China

ICS: 83.080.01
Classification: G 31

Issued by: State Administration for Market Regulation, China National Standardization Administration

Foreword
Introduction
1 Avoid misleading

1 Scope

1.1

This document describes a method for determining the corrosive effects of combustion emissions from plastic materials or products by measuring metal loss in electrodes.

1.2

This document can be used to evaluate materials or products and provide data to assist product design, development and research.

1.3

The corrosion results provided in this document are obtained from plastic materials or products with dimensions not exceeding 100mm × 100mm. The results are consistent with actual results.

The correlation to international fires is unclear.

1.4

This method determines the extent of corrosion by measuring the increase in resistance of a metal circuit. Increased resistance and metal loss due to corrosion further

This results in a reduction in the conductive cross-sectional area.

1.5

This document is suitable for measuring and describing the response of materials and/or products to heat and flame under controlled conditions. It is not suitable for use under actual fire conditions.

Directly describe or evaluate the fire hazard or risk of materials under conditions. As they relate to specific end uses, the results of this trial are available as an element in assessing fire hazard or risk.

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations

For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document.

GB/T 16172-2007 Test method for heat release rate of building materials (ISO 5660-1.2002, IDT)

GB/T 42924.1-2023 Determination of corrosiveness of combustion streams generated by plastic smoke Part 1.General terms and applications

GB/T 42977 | GB/T 42976 | GB/T 42918.1 | GB/T 42919.2 | GB/T 42918.3 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.

Referenced standards

Normative references

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