ISO 210:2023
(Main)Essential oils — General requirements and guidelines for packaging, conditioning and storage
Essential oils — General requirements and guidelines for packaging, conditioning and storage
This document describes the requirements for containers which are intended for containing essential oils. It also provides some general requirements and guidelines relating to the conditioning and storage of essential oils. Essential oils are used for different purposes: — food use; — pharmaceutical use; — perfumery and cosmetic use; — reference samples or test samples; — industrial raw materials. It is expected that the containers used for essential oils also meet the requirements of national or international regulations. This document describes the materials which are used for the containers intended for containing essential oils, depending on the uses listed above.
Huiles essentielles — Exigences générales et recommandations en matière d'emballage, de conditionnement et de stockage
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Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 210
First edition
2023-05
Essential oils — General requirements
and guidelines for packaging,
conditioning and storage
Huiles essentielles — Exigences générales et recommandations en
matière d'emballage, de conditionnement et de stockage
Reference number
© ISO 2023
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Published in Switzerland
ii
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Composition of the containers . 1
4.1 General . 1
4.2 Materials for containers of essential oils for food use . 2
4.2.1 Glass . 2
4.2.2 Metals and alloys . 2
4.2.3 Polymers: plastics and varnishes . 4
4.2.4 Ceramic, vitrified and enamelled materials used for internal coating . 4
4.3 Materials for containers of essential oils for pharmaceutical use . 4
4.3.1 General . 4
4.3.2 Glass . 4
4.3.3 Metals and alloys . 4
4.3.4 Plastics materials . 4
4.3.5 Ceramic, vitrified and enamelled materials, used for internal coatings . 5
4.4 Materials for containers of essential oils for perfumery and cosmetic use . 5
4.5 Materials for containers of reference samples or test samples of essential oils . 5
4.6 Materials for containers of essential oils used as industrial raw materials . 5
5 Pigments or colourings .5
6 Characteristics for containers intended for containing essential oils .5
6.1 Types . 5
6.2 Capacity . 6
6.3 Closures . 6
6.4 External weldings . 6
7 Conditioning and storage . 6
7.1 Conditioning. 6
7.2 Storage . 7
7.3 Special cases . 7
Bibliography . 8
iii
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO 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, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO document should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use
of (a) patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed
patent rights in respect thereof. As of the date of publication of this document, ISO had not received
notice of (a) patent(s) which may be required to implement this document. However, implementers are
cautioned that this may not represent the latest information, which may be obtained from the patent
database available at www.iso.org/patents. ISO shall not be held responsible for identifying any or all
such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 54, Essential oils.
This first edition cancels and replaces ISO/TS 210:2014, which has been technically revised.
The main changes are as follows:
— addition of Clause 2 (Normative references) and Clause 3 (Terms and definitions);
— revision of the Bibliography.
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.
iv
INTERNATIONAL STANDARD ISO 210:2023(E)
Essential oils — General requirements and guidelines for
packaging, conditioning and storage
1 Scope
This document describes the requirements for containers which are intended for containing essential
oils. It also provides some general requirements and guidelines relating to the conditioning and storage
of essential oils.
Essential oils are used for different purposes:
— food use;
— pharmaceutical use;
— perfumery and cosmetic use;
— reference samples or test samples;
— industrial raw materials.
It is expected that the containers used for essential oils also meet the requirements of national or
international regulations.
This document describes the materials which are used for the containers intended for containing
essential oils, depending on the uses listed above.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
4 Composition of the containers
4.1 General
Essential oils shall be packed in containers which, by their nature, do not cause alteration of the product
and which protect it against any external attack.
Generally, the container materials shall be inert towards the packed product so as to prevent any
simultaneous damage of the product and of the material.
4.2 Materials for containers of essential oils for food use
4.2.1 Glass
Type III glass (soda-calcic glass, according to Pharmacopoeia standards), is recommended as it permits
[1]
to keep the organoleptic properties of the essential oils .
Tinted non-actinic glass is always advisable.
4.2.2 Metals and alloys
4.2.2.1 Stainless steel
These materials shall contain at least 13 % of chromium.
They also may contain nickel and manganese.
Furthermore, one or more of the following elements in Table 1 may be included, with the following limit
[2]
for each of them .
Table 1 — Maximum content of some elements in stainless steel containers
Element Content
Tantalum 1 % max
Niobium 1 % max
Zirconium 1 % max
Molybdenum 4 % max
Titanium 4 % max
Aluminium 4 % max
Copper 4 % max
4.2.2.2 Aluminium and aluminium alloys
Aluminium shall be at least 99 % pure.
[3][4][5]
The total content of impurities shall not exceed 1 %, and they are limited as shown in Table 2 .
Table 2 — Maximum content of impurities in aluminium containers
Impurities Content
Iron + Silicon Lower than 1 %
Titanium 0,15 % max
Chromium, Zinc, Copper, Manganese, Magne- 0,1 % max (for each of these elements)
sium, Nickel, Tin
Lead, Thallium, Beryllium, and each of the 0,05 % max (for each of these elements)
other present impurities
Copper Between the mass fraction of 0,10 % and of 0,20 %, on the con-
dition that the chromium and manganese contents are less than
the mass fraction of 0,05 %
In the aluminium alloys, the mass fraction of the elements (in percentage) which may be added, or
which are present as impurities, shall not exceed the following values in Table 3.
Table 3 — Maximum content of impurities in aluminium alloys containers
Impurities Content
Silicon 13,5 % max
Magnesium 11 % max
Manganese 4 % max
Nickel 3 % max
Iron 2 % max
Copper 0,6 % max
Antimony 0,4 % max
Chromium 0,35 % max
Titanium 0,3 % max
Zirconium 0,3 % max
Zinc 0,25 % max
Strontium 0,2 % max
Tin 0,1 % max
Arsenic, Tantalum, Beryllium, Thallium, Lead,
0,05 % max, with a total ≤0,15 %
and each of the other impurities present
The anodization of aluminium or aluminium alloy materials and objects complying with the provisions
of Article 2 and 3 of Reference [3] shall be only carried out in a diluted bath using the following acids or
their mixtures:
— sulfuric acid;
— sulfomaleic acid;
— sulfosalicilic acid;
— oxalic acid;
— phosphoric acid.
The anodic layer may be coloured by pigments or colourings. Regulations in force concerning the
materials and products in contact with food can apply (see Clause 5).
It is expected that a compulsory final filling operation is applied with the exception of the aluminium
or aluminium alloy materials and products anodized in a phosphoric medium or covered by coating,
in conformity with Article 4 of Reference [3]. This operation shall be carried out with distilled or
demineralized water containing either 8 g/l of nickel acetate and 1 g/l of cobalt acetate or one of these
two salts at the maximum concentrations indicated.
All the technical conditions, particularly the temperature and standing time, shall be chosen in such a
way that, at the end of the operation, the oxide layer formed during the anodization process loses its
absorption power due to its natural porosity and acquires optimum inertness.
4.2.2.3 Tin
This material shall contain at least 97 % of tin, determined as metastannic acid, and not more than
[6][7]
0,5 % of lead or 300 mg
...
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