ISO 10047

ISO/DISPRF 10047
ISO/TC 38
Secretariat: JISC
Date: 2025-10-0830
Textiles — Determination of surface burning time of fabrics
Textiles — Détermination de la durée de brûlage en surface des étoffes
DIS stage
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This document is not an ISO International Standard. It is distributed for review and comment. It is subject to change
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PROOF
ISO/DISPRF 10047:2025(en)
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ISO/DISPRF 10047:2025(en)
Contents
Foreword . Error! Bookmark not defined.
Scope . Error! Bookmark not defined.
Normative references . Error! Bookmark not defined.
Terms and definitions . Error! Bookmark not defined.
Principle. Error! Bookmark not defined.
Health and safety of test operators . Error! Bookmark not defined.
Apparatus and materials . Error! Bookmark not defined.
Construction of testing equipment . Error! Bookmark not defined.
Location of test . Error! Bookmark not defined.
Preparation and conditioning of test specimens . Error! Bookmark not defined.
Size . Error! Bookmark not defined.
Number . Error! Bookmark not defined.
State of fabric . Error! Bookmark not defined.
Conditioning of test specimens . Error! Bookmark not defined.
Procedure . Error! Bookmark not defined.
Test report . Error! Bookmark not defined.
(normative) Description and construction of the burner . Error! Bookmark not defined.
(normative) Brushing device for raising the surface fibres of a fabric test specimen . Error!
Bookmark not defined.
Bibliography . Error! Bookmark not defined.
Foreword . iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Health and safety of test operators . 1
6 Apparatus and materials . 2
7 Location of test . 4
8 Preparation and conditioning of test specimens . 4
9 Procedure . 5
10 Test report . 6
Annex A (normative) Burner — Description and construction . 7
Annex B (normative) Brushing device for raising the surface fibres of a fabric test specimen . 11
Bibliography . 13

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ISO/DISPRF 10047:2025(en)
Foreword
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This document was prepared by Technical Committee ISO/TC 38, Textiles.
This second edition cancels and replaces the first edition (ISO 10047:1993), which has been technically
revised.
The main changes are as follows:
— — Figure A.10 b) has been revised to show the angular dimension lines and the angular dimensions clear.
Formatted: List Continue 1
This revision clarifies without any structural changes.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
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ISO/DISPRF 10047:2025(en)
Textiles — Determination of surface burning time of fabrics
1 Scope
This document specifies a method for the measurement of surface burning time of textile fabrics which have
a raised fibre surface, i.e. a napped, pile, tufted, flocked or similar surface.

2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
ISO 4880, Burning behaviour of textiles and textile products — Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions / terms and definitions given inISOin ISO 4880
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and the following apply.
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ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
surface burn
combustion limited to the surface of a material
3.2
surface burning time
time required for the pile or nap of a fabric to burn a defined distance when tested by the method described
herein
4 Principle
A dry test specimen of the fabric is supported on a vertical plate and its raised surface is ignited near the top
in a specified manner. The spread of flame downwards on the surface of the fabric to a reference line is timed.
NOTE The flame of a pile surface travels more reproducibly downwards or sideways than upwards. It is considered
Formatted: Note
there is a possibility that the blanketing effect of the combustion products do not allow the surface pile above the flame
front to burn, whereas the surface pile below the flame front is not affected in this way.
5 Health and safety of test operators
Burning of textiles may produce smoke and toxic gases which can affect the health of operators. The testing
area shall be cleared of smoke and fumes by suitable means of forced ventilation after each test, then restored
to the required testing conditions (see clause 7 and 9.1).7 and 0).
ISO/DISPRF 10047:2025(en)
6 Apparatus and materials
6.1 Construction of testing equipment
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The equipment shall be constructed of material which will not be adversely affected by the gas fumes. Some
products of combustion are corrosive, and the equipment shall be made of materials which will facilitate
cleaning.
6.2 Test specimen holder, consisting of a stainless steel plate approximately 150 mm long, 75 mm wide
and 3 mm thick (see Fi
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