ISO/FDIS 22932-7

Mining — Vocabulary — Part 7: Ventilation

This document specifies the commonly used terms in mine ventilation.

Exploitation minière — Vocabulaire — Partie 7: Ventilation

General Information

• Status: Not Published
• ICS: 01.040.73 - Mining and minerals (Vocabularies)
• ICS: 73.020 - Mining and quarrying
• Technical Committee: ISO/TC 82 - Mining
• Drafting Committee: ISO/TC 82 - Mining
• Current Stage: 5000 - FDIS registered for formal approval
• Start Date: 22-Jan-2025
• Due Date: 06-Mar-2025
• Completion Date: 06-Mar-2025

Standards Content (Sample)

FINAL DRAFT
International
Standard
ISO/TC 82
Mining — Vocabulary —
Secretariat: DIN
Part 7:
Voting begins on:
2025-04-17
Ventilation
Voting terminates on:
Exploitation minière — Vocabulaire —
2025-06-12
Partie 7: Ventilation
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
FINAL DRAFT
International
Standard
ISO/TC 82
Mining — Vocabulary —
Secretariat: DIN
Part 7:
Voting begins on:
Ventilation
Voting terminates on:
Exploitation minière — Vocabulaire —
Partie 7: Ventilation
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
© ISO 2025
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland Reference number
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Gases in mine air .1
3.2 Combustible gases environment .4
3.3 Dusts in mine air .6
3.4 Devices .8
3.5 Security devices.9
3.6 Fans usage.10
3.7 Auxiliary mine ventilation .11
3.8 Installations for passage, divert, or prevention of mine air . 12
3.9 Mine ventilation management .17
3.9.1 General concepts .17
3.9.2 Mine ventilation management - Layout .17
3.9.3 Mine ventilation management - Surveillance .19
3.10 Measurement . 20
Bibliography .25
Index .26

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 82, Mining.
A list of all parts in the ISO 22932 series can be found on the ISO website.
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
Introduction
The ISO 22932 series has been prepared in order to standardize and to co-ordinate the global use of
technical terms and definitions in mining, for the benefit of the experts working on different types of mining
activities.
The need for the ISO 22932 series arose from the widely varying interpretation of terms used within the
industry and the prevalent use of more than one synonym.

v
FINAL DRAFT International Standard ISO/FDIS 22932-7:2025(en)
Mining — Vocabulary —
Part 7:
Ventilation
1 Scope
This document specifies the commonly used terms and definitions in underground mine ventilation. Only
those terms and definitions that have a specific meaning in this field are included.
NOTE Some terms and definitions are also applicable to surface mining.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
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/
3.1 Gases in mine air
3.1.1
mine air
mixture of gases circulating through the workings
3.1.1.1
damp
mine air (3.1.1) deficient in oxygen
3.1.1.1.1
afterdamp
damp (3.1.1.1) that remain in a mine after a mine fire or an explosion of combustible gases (3.2.1)
Note 1 to entry: Afterdamp consists of carbonic acid gas, water vapor (quickly condensed), nitrogen, oxygen, carbon
monoxide, and in some cases free hydrogen.
Note 2 to entry: Afterdamp is breathable.
Note 3 to entry: See also blackdamp; damp.
Note 4 to entry: See Reference [1].

3.1.1.1.2
blackdamp
afterdamp (3.1.1.1.1) containing carbon dioxide and nitrogen in excess of the normal percentage, and in
which a flame safety lamp (3.4.1.1) will not burn owing to a deficiency of oxygen
Note 1 to entry: The average blackdamp contains 10 % to 15 % carbon dioxide and 85 % to 90 % nitrogen.
Note 2 to entry: Blackdamp is formed by mine fires and the explosion of combustible gases in mines, and hence forms
a part of the afterdamp.
Note 3 to entry: It extinguishes light and suffocates its victims. Hence, it is sometimes known as chokedamp.
Note 4 to entry: See Reference [1].
3.1.1.1.3
chokedamp
mine atmosphere that causes choking or suffocation due to insufficient oxygen
Note 1 to entry: See Reference [1].
3.1.1.1.4
white damp
damp (3.1.1.1) composed of carbon monoxide (CO)
Note 1 to entry: White damp can be present in the afterdamp of a gas- or coal-dust explosion, or in the gases given off
by a mine fire; also one of the gases produced by blasting.
Note 2 to entry: White damp is an important constituent of illuminating gas, supports combustion, and is very
poisonous because it is absorbed by the hemoglobin of the blood to the exclusion of oxygen.
Note 3 to entry: See Reference [1].
3.1.2
noxious gas
mine air (3.1.1) that contains gas which is injurious to health
3.1.2.1
ill air
noxious gas, as from underground fires or chokedamp
Note 1 to entry: Ill air stagnant state of the atmosphere underground.
Note 2 to entry: See Reference [1].
3.1.2.2
stifle
noxious gas (3.1.2) resulting from an underground fire
Note 1 to entry: See Reference [1].
3.1.3
foul air
main air contaminated by powder fumes, noxious gases, or respirable dust
Note 1 to entry: See Reference [1].
3.1.4
stythe
mine air (3.1.1) containing carbonic acid gas, often found in old workings and given off in most shallow mines
Note 1 to entry: Also spelled stithe.
Note 2 to entry: See Reference [1].

3.1.5
air blast
strong rush of mine air (3.1.1) through the workings
Note 1 to entry: Air blasts can occur caused by an explosion, a movement of large masses of strata, an outburst of coal
or by a movement of a body of water.
3.1.6
air current
air flow
flow of mine air (3.1.1) ventilating the workings of a mine
3.1.6.1
circulation of mine air
dominated air current
Note 1 to entry: The circulation of air aims to ensure adequate ventilation of all workings and roadways.
Note 2 to entry: See Reference [1].
3.1.6.1.1
re-circulation
continuous circulation ofmine air (3.1.6.1) of all or some part of the same air in part of a mine ventilation
system (3.9.2.1)
3.1.7
air requirement
quantity of mine air (3.1.1) required by law or practical considerations to maintain adequate ventilation of a mine
Note 1 to entry: This quantity will depend on (1) the length of face room in production, (2) the average distance from
the shafts to the faces, (3) the gas emission rate, (4) the depth of the workings, (5) the volumetric efficiency of the mine
ventilation, (6) heat loads and (7) time to evacuate blast gases.
Note 2 to entry: See Reference [1].
3.1.8
air power
air horsepower
horsepower of ventilation
energy is used in moving mine air (3.1.1) between two points of a mine, in “W”, “kW” and “hp”
Note 1 to entry: Air power is measured by the quantity circulated multiplied by the ventilating pressure required as follow
N = PQ
where
P pressure of air, in Pascal;
Q quantity of air flowing, in cubic meters per second.
3.1.9
fugitive air
mine air (3.1.1) moving through the fan that never reaches the working faces
Note 1 to entry: See Reference [1].
3.1.10
dead ai
...

Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
ISO /TC 82/ WG 8
Style Definition
...
Style Definition
Secretariat: DIN .
Style Definition
...
Date: 2025-03-17xx
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
Mining — Vocabulary — .
Style Definition
...
Part 7:
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Ventilation
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Style Definition
...
Formatted
...
Formatted
...
Formatted
...
Exploitation minière — Vocabulaire —
Partie 7: Ventilation
FDIS stage
Formatted: HeaderCentered, Left
Commented [eXtyles1]: The reference "ISO 2025" is to a
withdrawn standard
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication
Formatted: Default Paragraph Font
may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying,
Formatted: Default Paragraph Font
or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO
Formatted: Adjust space between Latin and Asian text,
at the address below or ISO'sISO’s member body in the country of the requester.
Adjust space between Asian text and numbers
ISO copyright office
ISO copyright office Formatted: zzCopyright address, Adjust space between Latin
and Asian text, Adjust space between Asian text and numbers
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
EmailE-mail: [e-mail]
Website: www.iso.orgwww.iso.org
Published in Switzerland.
Formatted: Font: 10 pt
Formatted: Font: 10 pt
Formatted: Font: 10 pt
Formatted: FooterCentered, Left, Space Before: 0 pt, Tab
stops: Not at 17.2 cm
Formatted: Font: 11 pt
Formatted: FooterPageRomanNumber, Left, Space After: 0
pt, Tab stops: Not at 17.2 cm
© ISO 2025 – All rights reserved
iii
Formatted: HeaderCentered
Contents
Foreword . v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Gases in mine air . 1
3.2 Combustible gases environment . 4
3.3 Dusts in mine air . 7
3.4 Devices . 9
3.5 Security devices . 11
3.6 Fans usage . 12
3.7 Auxiliary mine ventilation . 13
3.8 Installations for passage, divert, or prevention of mine air . 14
3.9 Mine ventilation management . 21
3.10 Measurement . 25
Bibliography . 30
Index 31
Formatted: FooterPageRomanNumber
iv
Formatted: HeaderCentered, Left
Formatted: Adjust space between Latin and Asian text,
Foreword
Adjust space between Asian text and numbers
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 documentsdocument should be noted. This document was drafted in accordance with the editorial rules
of the ISO/IEC Directives, Part 2. www.iso.org/directives 2 (see www.iso.org/directives).
Attention is drawnISO draws attention to the possibility that some of the elementsimplementation of this
document may beinvolve the subjectuse 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. Details of any patent rights identified during the development of the
document will be in the Introduction and/or on the ISO list of patent declarations received.
www.iso.org/patents
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.htmlwww.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 82, Mining.
A list of all parts in the ISO 22932 series can be found on the ISO website. Commented [eXtyles2]: Invalid reference: "ISO 22932 series"
Formatted: Default Paragraph Font
Any feedback or questions on this document should be directed to the user’s national standards body. A
Formatted: Default Paragraph Font
complete listing of these bodies can be found at www.iso.org/members.html.www.iso.org/members.html.
Formatted: Default Paragraph Font
Commented [eXtyles3]: The URL
https://www.iso.org/members.html has been redirected to
http://www.iso.org/about/members. Please verify the URL.
Formatted: Font: 10 pt
Formatted: Font: 10 pt
Formatted: Font: 10 pt
Formatted: FooterCentered, Left, Space Before: 0 pt, Tab
stops: Not at 17.2 cm
Formatted: Font: 11 pt
Formatted: FooterPageRomanNumber, Left, Space After: 0
pt, Tab stops: Not at 17.2 cm
© ISO 2025 – All rights reserved
v
Formatted: HeaderCentered
Introduction
The ISO 22932 series has been prepared in order to standardize and to co-ordinate the global use of technical Commented [eXtyles4]: Invalid reference: "ISO 22932 series"
terms and definitions in mining, for the benefit of the experts working on different types of mining activities.
Formatted: Default Paragraph Font
Formatted: Default Paragraph Font
The need for the ISO 22932 series arose from the widely varying interpretation of terms used within the
Formatted: Default Paragraph Font
industry and the prevalent use of more than one synonym.
Commented [eXtyles5]: Invalid reference: "ISO 22932 series"
Formatted: Default Paragraph Font
Formatted: Default Paragraph Font
Formatted: Default Paragraph Font
Formatted: FooterPageRomanNumber
vi
FINAL DRAFT International Standard ISO/FDIS 22932-7:2025(en)

Formatted: Main Title 1
Mining — Vocabulary - Part 7: Ventilation —
Note: Cross references, list of content and Annex A will be completed after final editing.
Part 7:
Ventilation
1 Scope Formatted: Adjust space between Latin and Asian text,
Adjust space between Asian text and numbers
This document specifies the commonly used terms and definitions in underground mine ventilation. Only
those terms and definitions that have a specific meaning in this field are included.
NOTE: Some terms and definitions are also applicable to surface mining.
Formatted: Adjust space between Latin and Asian text,
Adjust space between Asian text and numbers, Tab stops: Not
at 0.7 cm + 1.4 cm + 2.1 cm + 2.8 cm + 3.5 cm + 4.2
2 Normative references
cm + 4.9 cm + 5.6 cm + 6.3 cm + 7 cm
Formatted: Adjust space between Latin and Asian text,
There are no normative references in this document.
Adjust space between Asian text and numbers
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminologicalterminology databases for use in standardization at the following Formatted: Adjust space between Latin and Asian text,
Adjust space between Asian text and numbers
addresses:
Commented [eXtyles6]: The URL https://www.iso.org/obp has
— — ISO Online browsing platform: available at https://www.iso.org/obphttps://www.iso.org/obp
been redirected to https://www.iso.org/obp/ui. Please verify the URL.
Formatted: Adjust space between Latin and Asian text,
— — IEC Electropedia: available at https://www.electropedia.org/https://www.electropedia.org/
Adjust space between Asian text and numbers, Tab stops: Not
at 0.7 cm + 1.4 cm + 2.1 cm + 2.8 cm + 3.5 cm + 4.2
3.1 Gases in mine air
cm + 4.9 cm + 5.6 cm + 6.3 cm + 7 cm
Formatted: Adjust space between Latin and Asian text,
3.1.1 3.1.1
Adjust space between Asian text and numbers, Tab stops: Not
mine air at 0.71 cm
mixture of gases circulating through the workings
Formatted: TermNum3, Adjust space between Latin and
Asian text, Adjust space between Asian text and numbers
3.1.1.1 3.1.1.1
Commented [eXtyles7]: The term "mine air" is used only in
terms and definitions section
damp
mine air (3.1.1) deficient in oxygen
Commented [eXtyles8]: The term "damp" is used only in terms
and definitions section
3.1.1.1.1 3.1.1.1.1
Formatted: Font: Italic
afterdamp
Commented [eXtyles9]: The term "afterdamp" is used only in
damp (ref)(3.1.1.1) that remain in a mine after a mine fire or an explosion of combustible gases (ref)(3.2.1)
terms and definitions section
Formatted: Font: Italic
Note 1 to entry: Afterdamp consists of carbonic acid gas, water vapor (quickly condensed), nitrogen, oxygen, carbon
Formatted: Font: Italic
monoxide, and in some cases free hydrogen.
Formatted: Adjust space between Latin and Asian text,
Adjust space between Asian text and numbers, Tab stops: Not
Note 2 to entry: Afterdamp is breathable.
at 0.7 cm + 1.4 cm + 2.1 cm + 2.8 cm + 3.5 cm + 4.2
cm + 4.9 cm + 5.6 cm + 6.3 cm + 7 cm
Note 3 to entry: See also blackdamp (ref);; damp (ref).
Formatted: Footer, Left, Space After: 0 pt, Line spacing:
single, Tab stops: Not at 17.2 cm
Formatted: HeaderCentered
Note 4 to entry: See Reference [2].[1].
3.1.1.1.2 3.1.1.1.2
Formatted: TermNum5, Adjust space between Latin and
Asian text, Adjust space between Asian text and numbers
blackdamp
afterdamp (ref)afterdamp (3.1.1.1.1) containing carbon dioxide and nitrogen in excess of the normal
Commented [eXtyles10]: The term "blackdamp" is used only
in terms and definitions section
percentage, and in which a flame safety lamp (0) will not burn owing to a deficiency of oxygen
Formatted: Font: Italic
Note 1 to entry: The average blackdamp contains 10 % to 15 % carbon dioxide and 85 % to 90 % nitrogen.
Formatted: Adjust space between Latin and Asian text,
Adjust space between Asian text and numbers, Tab stops: Not
at 0.7 cm + 1.4 cm + 2.1 cm + 2.8 cm + 3.5 cm + 4.2
Note 2 to entry: Blackdamp is formed by mine fires and the explosion of combustible gases in mines, and h
...