Cable management systems - Test method for content of halogens

IEC 63355:2022 specifies a method for the determination of the content of halogens in cable management system (CMS) products or system components made completely or partly of combustible material(s). The determination is made by combustion and subsequent analysis of the combustion product by ion chromatography. This document specifies how CMS products or system components can be declared as halogen-free.

Systèmes de gestion de câblage - Méthode d'essai relative à la teneur en halogènes

L'IEC 63355:2022 spécifie une méthode de détermination de la teneur en halogènes dans les composants des systèmes ou les produits des systèmes de câblage (CMS, Cable Management System) fabriqués partiellement ou complètement en matériau(x) combustible(s). La détermination est réalisée par combustion et analyse ultérieure du produit de combustion par chromatographie ionique. Le présent document spécifie la façon dont les composants des systèmes ou les produits des CMS peuvent être déclarés sans halogène.

General Information

Status
Published
Publication Date
12-Jul-2022
Current Stage
PPUB - Publication issued
Completion Date
13-Jul-2022
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IEC 63355
Edition 1.0 2022-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Cable management systems – Test method for content of halogens
Systèmes de gestion de câblage – Méthode d'essai relative à la teneur en
halogènes
IEC 63355:2022-07(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 63355
Edition 1.0 2022-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Cable management systems – Test method for content of halogens
Systèmes de gestion de câblage – Méthode d'essai relative à la teneur en
halogènes
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.060.01; 29.120.10 ISBN 978-2-8322-3956-8

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 63355:2022 © IEC 2022
CONTENTS

FOREWORD ........................................................................................................................... 4

1 Scope .............................................................................................................................. 6

2 Normative references ...................................................................................................... 6

3 Terms and definitions ...................................................................................................... 6

4 Principle .......................................................................................................................... 7

5 Interferences ................................................................................................................... 7

5.1 General ................................................................................................................... 7

5.2 Organic halogen compounds ................................................................................... 7

5.3 Inorganic halogen compounds ................................................................................ 8

6 Classifications, limits and declaration .............................................................................. 8

6.1 Halogen content classification ................................................................................. 8

6.1.1 Not declared .................................................................................................... 8

6.1.2 Halogen-free .................................................................................................... 8

6.2 Limits ...................................................................................................................... 8

6.3 Declaration ............................................................................................................. 8

7 Reagents and control mixtures ........................................................................................ 8

7.1 Reagents ................................................................................................................ 8

7.1.1 General ........................................................................................................... 8

7.1.2 Water .............................................................................................................. 9

7.1.3 Absorption solution 1, for the determination of fluorine, chlorine and

bromine ........................................................................................................... 9

7.1.4 Absorption solution 2 for the determination of iodine ........................................ 9

7.1.5 Oxygen ............................................................................................................ 9

7.1.6 Combustion enhancer ...................................................................................... 9

7.2 Control samples ...................................................................................................... 9

8 Sample preparation ......................................................................................................... 9

9 Equipment ..................................................................................................................... 10

9.1 Calorimetric decomposition bomb ......................................................................... 10

9.2 Sample pan........................................................................................................... 10

9.3 Firing wire ............................................................................................................. 10

9.4 Ignition circuit ....................................................................................................... 10

9.5 Usual laboratory equipment .................................................................................. 10

10 Procedure ...................................................................................................................... 10

10.1 General ................................................................................................................. 10

10.2 Choice of the absorption solution .......................................................................... 11

10.3 Preparation of the bomb ........................................................................................ 11

10.4 Combustion........................................................................................................... 11

10.5 Collection of the halides ........................................................................................ 12

10.6 Cleaning procedure ............................................................................................... 12

11 Test method for determination ....................................................................................... 12

12 Control measurements ................................................................................................... 12

13 Evaluation ..................................................................................................................... 12

13.1 General ................................................................................................................. 12

13.2 Procedure to evaluate the test results ................................................................... 13

13.3 Determination of the halogen content of a CMS product or system

component made of multiple parts......................................................................... 13

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IEC 63355:2022 © IEC 2022 – 3 –

13.4 Calculation of total halogen content ...................................................................... 13

13.5 Compliance ........................................................................................................... 14

13.6 Extended application ............................................................................................. 14

14 Test report ..................................................................................................................... 14

Annex A (informative) Examples for possible control substances ......................................... 15

Bibliography .......................................................................................................................... 16

Table A.1 – Examples for possible control substances .......................................................... 15

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– 4 – IEC 63355:2022 © IEC 2022
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CABLE MANAGEMENT SYSTEMS –
TEST METHOD FOR CONTENT OF HALOGENS
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international

co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and

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Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent

rights. IEC shall not be held responsible for identifying any or all such patent rights.

IEC 63355 has been prepared by subcommittee 23A: Cable management systems, of IEC

technical committee 23: Electrical accessories. It is an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
23A/997/FDIS 23A/999/RVD

Full information on the voting for its approval can be found in the report on voting indicated in

the above table.
The language used for the development of this International Standard is English.

This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in

accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available

at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are

described in greater detail at www.iec.ch/standardsdev/publications.
---------------------- Page: 6 ----------------------
IEC 63355:2022 © IEC 2022 – 5 –

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under webstore.iec.ch in the data related to the

specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
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– 6 – IEC 63355:2022 © IEC 2022
CABLE MANAGEMENT SYSTEMS –
TEST METHOD FOR CONTENT OF HALOGENS
1 Scope

This document specifies a method for the determination of the content of halogens in cable

management system (CMS) products or system components made completely or partly of

combustible material(s). The determination is made by combustion and subsequent analysis of

the combustion product by ion chromatography. This document specifies how CMS products or

system components can be declared as halogen-free.
This document is for environmental performance purposes only.

Compliance with this document does not imply the absence of toxicity, corrosivity or opacity of

produced smoke, or other reaction to fire characteristics. If any of these characteristics are to

be evaluated, the appropriate standards can be used.

The detection limit of this test method is typically 0,025 g of halogen per kg (0,002 5 %).

Halides insoluble in aqueous solution present in the original sample or produced during the

combustion step are not determined by this method.
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 1716, Reaction to fire tests for products – Determination of the gross heat of combustion

(calorific value)
ISO 3696, Water for analytical laboratory use – Specification and test methods
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1
halogen content

content of fluorine, chlorine, bromine and iodine as organic and inorganic compounds that can

be converted to halides (fluoride, chloride, bromide, iodide) by combustion and then absorbed

or dissolved in an aqueous solution

Note 1 to entry: The above definition is valid for this document only and does not strictly comply with the scientific

definition of halogen content.
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IEC 63355:2022 © IEC 2022 – 7 –
3.2
combustible, adjective
capable of being ignited and burned
[SOURCE: ISO 13943:2017, 3.52]
4 Principle

For the purpose of this document, a material is considered as being non-combustible if its gross

calorific potential is assumed to be lower than 3,0 MJ/kg. In case of doubt ISO 1716 is used to

measure the calorific potential.
Examples of non-combustible materials are:
– uncoated stainless steel,
– steel with metallic coating,
– uncoated aluminium,
– copper,
– ceramic.

The test sample is oxidized by combustion in a closed system containing oxygen under pressure

using a calorimetric decomposition bomb (bomb).

Nearly all of the halogens in compounds are converted to halides (fluoride, chloride, bromide

and iodide), and nearly all of these (see Clause 5) are dissolved in an absorption solution.

The detection limit of this test method is typically 0,025 g of halogen per kg (0,002 5 %). When

this test method is used for poorly burning samples, a combustion enhancer may be used.

5 Interferences
5.1 General

Inorganic halides insoluble in aqueous solution present in the original samples or produced

during the combustion step are not determined by the method described here. Subclauses 5.2

and 5.3 show the differences that occur between the determination of the content of organic

halogen compounds and inorganic halogen compounds. The inorganic halogen compounds in

the material can have their origin as an additive deliberately added to the material or as an

impurity.
5.2 Organic halogen compounds
Organic compounds containing halogens are known under several names. Different

expressions are used like organohalogens, halogenated compounds, halocarbons or organic

halides. They are all substances in which one or more carbon atoms are linked by covalent

bonds to one or more halogen atoms.

Among the organohalogens, some of them are efficient flame retardants. Chlorinated,

brominated and fluorinated organohalogens are used separately or in combination.

Organohalogens will be converted into inorganic halides by combustion and will then be

absorbed or dissolved in an aqueous solution. This allows the subsequent analysis of halogen

content.
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– 8 – IEC 63355:2022 © IEC 2022
5.3 Inorganic halogen compounds

Inorganic compounds containing halogens are known as inorganic halides. Inorganic halides

used as additives are salts between a halogen and a metal linked together with an ionic bond,

for example magnesium chloride (MgCl ), potassium bromide (KBr) or sodium fluoride (NaF).

These salts may have varying degrees of solubility in water.

However, this limitation is considered as not significant as no example has been found where

inorganic halides have been used in CMS products.

Impurities containing inorganic halides will occur in several additives used in polymers. They

can occur as impurities in, for example, fillers (like CaCl in CaCO ), pigments (like TiCl in

2 3 4

TiO ) or other inorganic additives (like AlCl in Al(OH) ). These inorganic halides can have

2 3 3

more or less solubility in water, but they will only be measured if they dissolve in the aqueous

solution. Investigations have shown that the content of each halogen in impurities in inorganic

additives for CMS products is low and therefore does not significantly contribute to the total

content of each halogen. Insoluble inorganic halides will not be considered and will not be

measured by the method described here. Examples of insoluble inorganic halides are halide

salts of silver and barium (AgCl, AgBr and BaCl ). Soluble inorganic halides will be dissolved

in the aqueous solution and will be measured together with halides coming from the combustion

of the organohalogens.
6 Classifications, limits and declaration
6.1 Halogen content classification
6.1.1 Not declared
6.1.2 Halogen-free
6.2 Limits

A CMS product or system component classified according to 6.1.2 shall comply with the

following specified limits:
• fluorine (F) content ≤ 3,0 g/kg (corresponding to 0,30 % weight/weight)
• chlorine (Cl) content ≤ 1,5 g/kg (corresponding to 0,15 % weight/weight)
• bromine (Br) content ≤ 1,5 g/kg (corresponding to 0,15 % weight/weight)
• iodine (I) content ≤ 3,0 g/kg (corresponding to 0,30 % weight/weight)

• total halogen content: fluorine (F) content + chlorine (Cl) content + bromine (Br)

content + iodine (I) content ≤ 4 g/kg (corresponding to 0,40 % weight/weight).
6.3 Declaration

A CMS product or system component classified according to 6.1.2 can be declared as

"halogen-free according to IEC 63355" if the CMS product or system component meets the

requirements of 6.2.
7 Reagents and control mixtures
7.1 Reagents
7.1.1 General

All reagents shall be at least of analytical grade and suitable for the specific purposes, see

Clause 12.
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IEC 63355:2022 © IEC 2022 – 9 –
7.1.2 Water
The water shall be grade 1 as specified in ISO 3696.

7.1.3 Absorption solution 1, for the determination of fluorine, chlorine and bromine

The nature and concentration of solution 1 may depend on the end-determination technique

and on the expected content of halogens. For example:
– water (7.1.2); or

– 0,3 mol/l potassium or sodium hydroxide solution: dissolve 16,8 g of KOH or 12,0 g of NaOH

pellets in water (7.1.2) and dilute to 1 l; or

– carbonate-bicarbonate solution: dissolve 2,52 g sodium bicarbonate NaHCO and 2,54 g

sodium carbonate Na CO in water (7.1.2) and dilute to 1 l.
2 3
7.1.4 Absorption solution 2 for the determination of iodine
Solution 2 shall be ascorbic acid-solution, (C H O ), 10 g/kg.
6 8 3
7.1.5 Oxygen

The oxygen shall be free of combustible material, available at a pressure of 3 MPa to 4 MPa

(e.g. medical grade).
7.1.6 Combustion enhancer
The combustion enhancer may be, for example, paraffin.
7.2 Control samples

Annex A Table A.1 lists examples of control substances that give complete (90 % to 110 %)

recovery rate of halogens. By spiking (standard addition) a sample polymer considered not to

contain any halogen with one or more of these substances, a control sample can be created.

The halogen content of this sample shall be within ± 20 % of the specified pass-fail criteria.

Specific polymer samples with a halogen content in the same range can also be used as control

samples.
8 Sample preparation

For each product, non-combustible parts which can be completely separated through

disassembling, cutting, crushing or grinding are separated and are not tested.

NOTE 1 Examples of parts which can be separated are screws, metal inserts and terminals.

The mass of all remaining combustible parts is measured.

A test sample representative of each part is cut or ground into pieces with a grain size not

exceeding 2 mm.

NOTE 2 If the grain size is too small, there is a risk of blowing away the test sample when purging and filling the

bomb with oxygen. If this occurs, an appropriate method can be adopted to prevent this.

A part made of multiple combustible materials is assessed on its averaged contents. This is

achieved by grinding or sawing the part to produce a test sample containing a similar ratio of

materials as the original part.

During preparation of the test sample, contact with halogenated polymers, e.g. PVC gloves,

shall be avoided.
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– 10 – IEC 63355:2022 © IEC 2022
9 Equipment
9.1 Calorimetric decomposition bomb

The bomb shall have a capacity of at least 200 ml and be equipped with a venting system.

The bomb shall not leak during testing and shall permit a complete recovery of the liquid. The

inner surface shall be made of stainless steel or any other material that will not be affected by

combustion gases.

Materials used for the bomb assembly, such as the head gasket and wire insulation, shall be

resistant against heat and chemical attacks and shall not undergo any reaction that could affect

the results.

Bombs with damaged or pitted surfaces shall not be used because of their tendency to retain

halides. After repeated use of the bomb, a layer may build up on the inner surface. Such a

surface shall be removed by polishing the bomb regularly according to the manufacturer’s

instructions.

NOTE The internal surface of some bombs can have a ceramic coating or platinum insert. Therefore, they have

better resistance to corrosion.
9.2 Sample pan
The sample pan shall be manufactured from platinum or stainless steel.
9.3 Firing wire
The firing wire shall be manufactured from platinum or stainless steel.
9.4 Ignition circuit

The ignition circuit shall be capable of supplying a sufficient current to ignite the sample without

melting the wire.
9.5 Usual laboratory equipment

Homogenization devices (e.g. mixers, stirrers, grinders, mills) and analytical balance (accurate

to 0,1 mg or better).
10 Procedure
10.1 General

According to Clause 12, before each series of determinations, a blank test, then a control test

on a control sample (see 7.2) shall be carried out.

Testing samples of high content of halogens followed by samples of low content of halogens

can lead to contamination as it is difficult to rinse the last traces of ions from the internal

surfaces of the apparatus and a tendency for residual elements to carry-over from sample to

sample has been observed. It is good practice to insert a blank test between the sample tests,

unless the series of samples being analysed has similar expected concentrations.
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IEC 63355:2022 © IEC 2022 – 11 –
10.2 Choice of the absorption solution

The combustion gases are collected inside the bomb in an absorption solution (see 7.1.3 and

7.1.4). Water is generally used when a low halogen content is expected (usually, less than

10 g/kg). An alkaline solution should be used if a halogen content of greater than 10 g/kg is

expected, to ensure neutralization of all acid compounds produced. In case of detection of high

amount of iodine during first quantification with
...

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