ISO 9773:1990
(Main)Plastics — Determination of burning behaviour of flexible vertical specimens in contact with a small-flame ignition source
Plastics — Determination of burning behaviour of flexible vertical specimens in contact with a small-flame ignition source
Plastiques — Détermination du comportement au feu d'éprouvettes verticales souples au contact d'une petite flamme comme source d'allumage
Polimerni materiali - Določevanje obnašanja pri gorenju fleksibilnih preskušancev pri stiku z majhnim plamenom z vertikalno metodo
General Information
Relations
Buy Standard
Standards Content (Sample)
I
I NTER NATIONAL
STA N DAR D 9773
First edition
1990-12-01
Plastics - Determination of burning behaviour
of flexible vertical specimens in contact with a
small-flame ignition source
Plastiques - Détermination du comportement au feu d'éprouvettes
verticales souples au contact dune petite flamme comme source
d'allumage /
Reference number
IS0 9773: 1990( E)
---------------------- Page: 1 ----------------------
IS0 9773:1990(E)
Foreword
IS0 (the International Organization for Standardization) is a worldwide
federation of national standards bodies (IS0 member bodies). The work
of preparing International Standards is normally carried out through IS0
technical committees. Each member body interested in a subject for
which a technical committee has been established has the right to be
represented on that committee. International organizations, govern-
mental and non-governmental, in liaison with ISO, also take part in the
work. IS0 collaborates closely with the International Electrotechnical
Commission (IEC) on all matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an Inter-
national Standard requires approval by at least 75% of the member
bodies casting a vote.
International Standard IS0 9773 was prepared by Technical Committee
ISO/TC 61, Plastics.
Annex A of this International Standard is for information only.
0 IS0 1990
All rights reserved. No part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without
permission in writing from the publisher.
international Organization for Standardization
Case Postale 56 CH-121 1 Genève 20 Switzerland
Printed in Switzerland
ii
---------------------- Page: 2 ----------------------
INTERNATIONAL STANDARD IS0 9773:1990(E)
Plastics - Determination of burning behaviour of flexible
vertical specimens in contact with a small-flame ignition
source
IS0 291:1977, Plastics - Standard atmospheres for
conditioning and testing.
e ' Scope
IS0 1043-1:1987, Plastics - Symbols - Part 1: Basic
1.1 This International Standard specifies a small-
polymers and their special characteristics.
scale laboratory screening procedure for comparing
the relative burning behaviour of vertically oriented
IS0 1210:-3) , Plastics - Determination of the burn-
thin and relatively flexible plastics specimens ex-
ing behaviour of horizontal and vertical specimens
posed to a low-energy-level flame ignition source.
in contact with a small-flame ignition source.
These specimens cannot be tested using method B
of IS0 1210 since they distort or shrink away from
IS0 5725:1986, Precision of test methods - Determi-
the applied flame source without igniting.
nation of repeatability and reproducibility for a sfan-
dard test method by inter-laboratory tests.
1.2 This method of test determines the aflerflame
IS0 10093:-*), Plastics - Fire tests - Standard ig-
and afterglow times of specimens.
nition sources.
1.3 The classification system described in ASTM D 5025:1989, Standard specifications for a
annex A is intended for quality control and the pre- laboratory burner used for small-scale burning tests
selection of component materials for products. The on plastic materials.
classification established by this method of test is
applicable only to the material used for the speci-
0 mens.
3 Definitions
NOTE 1 Test results are influenced by material compo-
nents, e.g. pigments, fillers, fire-retardant concentrations.
For the purposes of this International Standard, the
following definitions apply.
2 Normative references
3.1 afterflame: Persistence of flaming of a material,
under specified test conditions, afler the ignition
The following standards contain provisions which,
source has been removed.
through reference in this text, constitute provisions
of this International Standard. At the time of publi-
3.2 afterflame time: The length of time for which a
cation, the editions indicated were valid. All stan-
material continues to flame, under specified test
dards are subject to revision, and parties to
conditions, afler the ignition source has been re-
agreements based on this International Standard
moved.
are encouraged to investigate the possibility of ap-
plying the most recent editions of the standards in-
dicated below. Members of IEC and IS0 maintain 3.3 afterglow: Persistence of glowing of a material,
under specified test conditions, afler cessation of
registers of currently valid International Standards.
I) To be published. (Revision of IS0 1210:1982)
2) To be published.
1
---------------------- Page: 3 ----------------------
IS0 9773:1990( E)
conditioning conditions shall be 7 days at 70 OC.
flaming or, if no flaming occurs, after removal of the
ignition source. However, other oven conditioning times and tem-
peratures may be used if agreeable to all parties.
3.4 afterglow time: The time during which a mate-
rial continues to glow, under specified test condi-
6 Apparatus and materials
tions, after cessation of flaming or, if no flaming
occurs, after the ignition source has been removed.
6.1 Laboratory fume hood (cupboard), having an
internal volume of at least 0,5 m3. The enclosure
shall permit observation and shall be draught-free
4 Principle
while permitting normal thermal circulation of air
past the specimen during burning. For safety and
A test specimen having a nearly cylindrical form is
supported vertically by one end and the free end is convenience, it is desirable that this enclosure
(which can be completely closed) be fitted with an
exposed to two successive applications of a speci-
evacuation device, such as an exhaust fan, to re-
fied gas flame. The burning behaviour of the speci-
move products of combustion, which may be toxic.
men is assessed by measuring the afterflame and/or
However, it is important to be able to turn off the
afterglow time.
device during the actual test and to start it again
immediately after the test to remove the products
5 Significance of test of combustion.
NOTE 2 The amount of oxygen available to support
5.1 Tests made on a material under the conditions
combustion is obviously important for the conduct of
specified in this standard can be of considerable
these flame tests. For tests conducted by this method
value when comparing the relative burning behav-
when burning is vigorous, enclosure sizes less than 1 m3
may not provide accurate results.
iour of different materials, controlling manufacturing
processes or assessing any change in burning
characteristics prior to, or during, use. The results
6.2 Laboratory burner, as specified in
obtained from this method are dependent upon the
ASTM D 5025, or in IS0 10093 as ignition source
shape, orientation and isolation of the specimen and
P/PF2, having a barrel length of 100 mm f 10 mm
the conditions of ignition. Correlation with perform-
and an inside diameter of 9,5 mm f 0,3 mm. The
ance under actual service conditions is not implied.
barrel shall not be equipped with an end-
attachment, such as a stabilizer.
5.2 Results obtained in accordance with this Inter-
national Standard shall not be used to describe or
6.3
Ring stand, with clamps or the equivalent, ad-
appraise the fire hazard presented by a particular
justable for positioning of the specimen.
material or particular shape under actual fire condi-
tions. Assessment for fire hazard requires con-
6.4 Timing device, accurate to 1 s.
sideration of such factors as fuel contribution,
intensity of burning (rate of heat release), products
6.5 Measuring scale, graduated in millimetres.
of combustion and environmental factors such as
0
the intensity of the flame source, orientation of ex-
posed material and ventilation conditions. 6.6
A supply of technical-grade methane gas, with
regulator and meter for uniform gas flow.
5.3 Burning behaviour as measured by this test
NOTE 3 Other gas mixtures having a heat content of
is affected by such factors as the density,
method
approx 37 MJlm3 have been found to provide similar re-
colour and anisotropy of the material and the thick-
sults.
ness of the specimen.
6.7
Desiccator, containing a suitable drying agent.
5.4 The effects on the burning behaviour of addi-
tives, deterioration and possible loss of volatile
6.8 Conditioning room or chamber, capable of be-
components are measurable using this method. Re-
ing maintained at 23 OC f 2 "C and a relative hu-
sults obtained using this method may serve for
midity of (50 f 5) % as specified in IS0 291.
comparing the relative performance of materials
and can be helpful in material assessment.
6.9 Micrometer, capable of being read to 0,002 mm.
5.5 The burning behaviour of some plastics mate-
6.10 Specimen mandrel form, made from
rials may change with time. It is accordingly advis-
12,7 mm f 0,5 mm diameter rod.
able to make tests before and after oven
conditioning by an appropriate procedure that shall
6.11 Pressure-sensitive adhesive
be described in the test report. The preferred oven
2
---------------------- Page: 4 ----------------------
IS0 9773:1990(E)
NOTE 4 Tests made on specimens of different thick-
6.12 Nichrome wire3)
nesses or density may not be comparable and tests made
in different directions of anisotropy or on different colours
6.13 Dry, absorbent surgical cotton
may also not be comparable.
6.14 Air-circulating oven (minimum of five air
changes per hour), capable of being maintained at
70 OC f 1 OC. 7.3 Specimens shall be prepared by marking a line ,
across the width of the specimen 125 mm from one
end (bottom) of the cut specimen. The longitudinal
7 Specimens
axis of the specimen shall be wrapped tightly around
the longitudinal axis of the mandrel to form a lapped
7.1 All specimens shall be cut from a representa-
cylinder with the 125 mm line exposed. The
tive sample of the material (sheets or end-products).
overlapping portion of the specimen shall be se-
After any cutting operation, care shall be taken to
cured within the upper 75 mm segment above the
remove all dust and any particles from the surface;
125 mm mark and at the upper end of the tube with
cut edges shall have a smooth finish.
pressure-sensitive adhesive tape. The mandrel shall
then be removed.
7.2 Standard specimens shall be 200 mm f 5 mm
long, 50mm +_ 2 mm wide and a maximum of
NOTE 5 For stiff specimens, the pressure-sensitive tape
0,l mm thick. Measure the thickness of each to the
may be reinforced or replaced by Nichrome wire wound
* nearest 0,002 mm, and note the measurements. around the top 75 mm of the specimen (see figure I).
3) Nichra
...
SLOVENSKI STANDARD
SIST ISO 9773:1996
01-januar-1996
3ROLPHUQLPDWHULDOL'RORþHYDQMHREQDãDQMDSULJRUHQMXIOHNVLELOQLKSUHVNXãDQFHY
SULVWLNX]PDMKQLPSODPHQRP]YHUWLNDOQRPHWRGR
Plastics -- Determination of burning behaviour of flexible vertical specimens in contact
with a small-flame ignition source
Plastiques -- Détermination du comportement au feu d'éprouvettes verticales souples au
contact d'une petite flamme comme source d'allumage
Ta slovenski standard je istoveten z: ISO 9773:1990
ICS:
13.220.40 Sposobnost vžiga in Ignitability and burning
obnašanje materialov in behaviour of materials and
proizvodov pri gorenju products
83.080.01 Polimerni materiali na Plastics in general
splošno
SIST ISO 9773:1996 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST ISO 9773:1996
---------------------- Page: 2 ----------------------
SIST ISO 9773:1996
I
I NTER NATIONAL
STA N DAR D 9773
First edition
1990-12-01
Plastics - Determination of burning behaviour
of flexible vertical specimens in contact with a
small-flame ignition source
Plastiques - Détermination du comportement au feu d'éprouvettes
verticales souples au contact dune petite flamme comme source
d'allumage /
Reference number
IS0 9773: 1990( E)
---------------------- Page: 3 ----------------------
SIST ISO 9773:1996
IS0 9773:1990(E)
Foreword
IS0 (the International Organization for Standardization) is a worldwide
federation of national standards bodies (IS0 member bodies). The work
of preparing International Standards is normally carried out through IS0
technical committees. Each member body interested in a subject for
which a technical committee has been established has the right to be
represented on that committee. International organizations, govern-
mental and non-governmental, in liaison with ISO, also take part in the
work. IS0 collaborates closely with the International Electrotechnical
Commission (IEC) on all matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an Inter-
national Standard requires approval by at least 75% of the member
bodies casting a vote.
International Standard IS0 9773 was prepared by Technical Committee
ISO/TC 61, Plastics.
Annex A of this International Standard is for information only.
0 IS0 1990
All rights reserved. No part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without
permission in writing from the publisher.
international Organization for Standardization
Case Postale 56 CH-121 1 Genève 20 Switzerland
Printed in Switzerland
ii
---------------------- Page: 4 ----------------------
SIST ISO 9773:1996
INTERNATIONAL STANDARD IS0 9773:1990(E)
Plastics - Determination of burning behaviour of flexible
vertical specimens in contact with a small-flame ignition
source
IS0 291:1977, Plastics - Standard atmospheres for
conditioning and testing.
e ' Scope
IS0 1043-1:1987, Plastics - Symbols - Part 1: Basic
1.1 This International Standard specifies a small-
polymers and their special characteristics.
scale laboratory screening procedure for comparing
the relative burning behaviour of vertically oriented
IS0 1210:-3) , Plastics - Determination of the burn-
thin and relatively flexible plastics specimens ex-
ing behaviour of horizontal and vertical specimens
posed to a low-energy-level flame ignition source.
in contact with a small-flame ignition source.
These specimens cannot be tested using method B
of IS0 1210 since they distort or shrink away from
IS0 5725:1986, Precision of test methods - Determi-
the applied flame source without igniting.
nation of repeatability and reproducibility for a sfan-
dard test method by inter-laboratory tests.
1.2 This method of test determines the aflerflame
IS0 10093:-*), Plastics - Fire tests - Standard ig-
and afterglow times of specimens.
nition sources.
1.3 The classification system described in ASTM D 5025:1989, Standard specifications for a
annex A is intended for quality control and the pre- laboratory burner used for small-scale burning tests
selection of component materials for products. The on plastic materials.
classification established by this method of test is
applicable only to the material used for the speci-
0 mens.
3 Definitions
NOTE 1 Test results are influenced by material compo-
nents, e.g. pigments, fillers, fire-retardant concentrations.
For the purposes of this International Standard, the
following definitions apply.
2 Normative references
3.1 afterflame: Persistence of flaming of a material,
under specified test conditions, afler the ignition
The following standards contain provisions which,
source has been removed.
through reference in this text, constitute provisions
of this International Standard. At the time of publi-
3.2 afterflame time: The length of time for which a
cation, the editions indicated were valid. All stan-
material continues to flame, under specified test
dards are subject to revision, and parties to
conditions, afler the ignition source has been re-
agreements based on this International Standard
moved.
are encouraged to investigate the possibility of ap-
plying the most recent editions of the standards in-
dicated below. Members of IEC and IS0 maintain 3.3 afterglow: Persistence of glowing of a material,
under specified test conditions, afler cessation of
registers of currently valid International Standards.
I) To be published. (Revision of IS0 1210:1982)
2) To be published.
1
---------------------- Page: 5 ----------------------
SIST ISO 9773:1996
IS0 9773:1990( E)
conditioning conditions shall be 7 days at 70 OC.
flaming or, if no flaming occurs, after removal of the
ignition source. However, other oven conditioning times and tem-
peratures may be used if agreeable to all parties.
3.4 afterglow time: The time during which a mate-
rial continues to glow, under specified test condi-
6 Apparatus and materials
tions, after cessation of flaming or, if no flaming
occurs, after the ignition source has been removed.
6.1 Laboratory fume hood (cupboard), having an
internal volume of at least 0,5 m3. The enclosure
shall permit observation and shall be draught-free
4 Principle
while permitting normal thermal circulation of air
past the specimen during burning. For safety and
A test specimen having a nearly cylindrical form is
supported vertically by one end and the free end is convenience, it is desirable that this enclosure
(which can be completely closed) be fitted with an
exposed to two successive applications of a speci-
evacuation device, such as an exhaust fan, to re-
fied gas flame. The burning behaviour of the speci-
move products of combustion, which may be toxic.
men is assessed by measuring the afterflame and/or
However, it is important to be able to turn off the
afterglow time.
device during the actual test and to start it again
immediately after the test to remove the products
5 Significance of test of combustion.
NOTE 2 The amount of oxygen available to support
5.1 Tests made on a material under the conditions
combustion is obviously important for the conduct of
specified in this standard can be of considerable
these flame tests. For tests conducted by this method
value when comparing the relative burning behav-
when burning is vigorous, enclosure sizes less than 1 m3
may not provide accurate results.
iour of different materials, controlling manufacturing
processes or assessing any change in burning
characteristics prior to, or during, use. The results
6.2 Laboratory burner, as specified in
obtained from this method are dependent upon the
ASTM D 5025, or in IS0 10093 as ignition source
shape, orientation and isolation of the specimen and
P/PF2, having a barrel length of 100 mm f 10 mm
the conditions of ignition. Correlation with perform-
and an inside diameter of 9,5 mm f 0,3 mm. The
ance under actual service conditions is not implied.
barrel shall not be equipped with an end-
attachment, such as a stabilizer.
5.2 Results obtained in accordance with this Inter-
national Standard shall not be used to describe or
6.3
Ring stand, with clamps or the equivalent, ad-
appraise the fire hazard presented by a particular
justable for positioning of the specimen.
material or particular shape under actual fire condi-
tions. Assessment for fire hazard requires con-
6.4 Timing device, accurate to 1 s.
sideration of such factors as fuel contribution,
intensity of burning (rate of heat release), products
6.5 Measuring scale, graduated in millimetres.
of combustion and environmental factors such as
0
the intensity of the flame source, orientation of ex-
posed material and ventilation conditions. 6.6
A supply of technical-grade methane gas, with
regulator and meter for uniform gas flow.
5.3 Burning behaviour as measured by this test
NOTE 3 Other gas mixtures having a heat content of
is affected by such factors as the density,
method
approx 37 MJlm3 have been found to provide similar re-
colour and anisotropy of the material and the thick-
sults.
ness of the specimen.
6.7
Desiccator, containing a suitable drying agent.
5.4 The effects on the burning behaviour of addi-
tives, deterioration and possible loss of volatile
6.8 Conditioning room or chamber, capable of be-
components are measurable using this method. Re-
ing maintained at 23 OC f 2 "C and a relative hu-
sults obtained using this method may serve for
midity of (50 f 5) % as specified in IS0 291.
comparing the relative performance of materials
and can be helpful in material assessment.
6.9 Micrometer, capable of being read to 0,002 mm.
5.5 The burning behaviour of some plastics mate-
6.10 Specimen mandrel form, made from
rials may change with time. It is accordingly advis-
12,7 mm f 0,5 mm diameter rod.
able to make tests before and after oven
conditioning by an appropriate procedure that shall
6.11 Pressure-sensitive adhesive
be described in the test report. The preferred oven
2
---------------------- Page: 6 ----------------------
SIST ISO 9773:1996
IS0 9773:1990(E)
NOTE 4 Tests made on specimens of different thick-
6.12 Nichrome wire3)
nesses or density may not be comparable and tests made
in different directions of anisotropy or on different colours
6.13 Dry, absorbent surgical cotton
may also not be comparable.
6.14 Air-circulating oven (minimum of five air
changes per hour), capable of being maintained at
70 OC f 1 OC. 7.3 Specimens shall be prepared by marking a line ,
across the width of the specimen 125 mm from one
end (bottom) of the cut specimen. The longitudinal
7 Specimens
axis of the specimen shall be wrapped tightly around
the longitudinal axis of the mandrel to form a lapped
7.1 All specimens shall be cut from a representa-
cylinder with the 125 mm line exposed. The
tive sample of the material (sheets or end-products).
overlapping portion of the specimen shall be se-
After any cutting operation, care shall be taken to
cured within the upper 75 mm segment
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.