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1801:1999
Incorporating Corrigendum No 1
The European Standard EN 1801:1998 has the status of a
British Standard
ICS 23.020.30
NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW
Transportable gas cylinders Ð
Filling conditions for single
acetylene cylinders
Trang 2This British Standard, having
been prepared under the
direction of the Engineering
Sector Committee, was published
under the authority of the
Standards Committee and comes
into effect on 15 April 1999
BSI 02-2000
ISBN 0 580 30825 1
BS EN 1801:1999
Amendments issued since publication
Amd No Date Comments
10771 Corr No 1
February 2000
Addition of extra paragraph to EN foreword
National foreword
This British Standard is the English language version of EN 1801:1998, including corrigendum June 1999
The UK participation in its preparation was entrusted by Technical Committee PVE/3, Gas containers, to Subcommittee PVE/3/7, Gas cylinder (receptacle) operations, which has the responsibility to:
Ð aid enquirers to understand the text;
Ð present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed;
Ð monitor related international and European developments and promulgate them in the UK
A list of organizations represented on this subcommittee can be obtained on request
to its secretary
Cross-references
The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled ªInternational Standards Correspondence Indexº, or by using the ªFindº facility of the BSI Standards Electronic Catalogue
A British Standard does not purport to include all the necessary provisions of a contract Users of British Standards are responsible for their correct application
Compliance with a British Standard does not of itself confer immunity from legal obligations.
Summary of pages
This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 5 and a back cover
The BSI copyright notice displayed in this document indicates when the document was last issued
Trang 3European Committee for Standardization Comite EuropeÂen de Normalisation EuropaÈisches Komitee fuÈr Normung
Central Secretariat: rue de Stassart 36, B-1050 Brussels
1998 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members
Ref No EN 1801:1998 E
NORME EUROPE Â ENNE
EUROPA È ISCHE NORM December 1998
Descriptors: gas cylinders, acetylene, filling, operating requirements, porosity, determination of content, solvents, verification, marking
English version
Transportable gas cylinders Ð Filling conditions for single acetylene cylinders
Bouteilles aÁ gaz transportables Ð
Conditions de remplissage pour les bouteilles
d'aceÂtyleÁne individuelles
Ortsbewegliche Gasflaschen Ð AbfuÈllbedingungen fuÈr einzelne Acetylen-Gasflaschen
This European Standard was approved by CEN on 16 October 1998
CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a
national standard without any alteration Up-to-date lists and bibliographical
references concerning such nationalstandards may be obtained on application to the
Central Secretariat or to any CEN member
This European Standard exists in three official versions (English, French, German)
A version in any other language made by translation under the responsibility of a
CEN member into its own language and notified to the Central Secretariat has the
same status as the official versions
CEN members are the national standards bodies of Austria, Belgium, Czech
Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,
Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and
United Kingdom
Trang 4Page 2
EN 1801:1998
BSI 02-2000
Foreword
This European Standard has been prepared by
Technical Committee CEN/TC 23, Transportable gas
cylinders, the Secretariat of which is held by BSI
This European Standard shall be given the status of a
national standard, either by publication of an identical
text or by endorsement, at the latest by June 1999, and
conflicting national standards shall be withdrawn at
the latest by June 1999
According to the CEN/CENELEC Internal Regulations,
the national standards organizations of the following
countries are bound to implement this European
Standard: Austria, Belgium, Czech Republic, Denmark,
Finland, France, Germany, Greece, Iceland, Ireland,
Italy, Luxembourg, Netherlands, Norway, Portugal,
Spain, Sweden, Switzerland and the United Kingdom
This European Standard has been submitted for
reference into the RID and/or in the technical annexes
of the ADR Therefore in this context the standards
listed in the normative references and covering basic
requirements of the RID/ADR not addressed within the
present standard are normative only when the
standards themselves are referred to in the RID and/or
in the technical annexes of the ADR
Contents
Page
4 Requirements for filling single
5 Determination of solvent content 4
6 Simultaneous filling of acetylene
8 Filling of solvent free acetylene
Annex A (normative) Filling of acetylene cylinders not manufactured and approved in accordance with European Standards 5 Annex B (normative) Calculation of
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Trang 5Page 3
EN 1801:1998
BSI 02-2000
1 Scope
This European Standard specifies the requirements for
filling individual acetylene cylinders with different
porous masses and different solvents including
individual cylinders without solvent
2 Normative references
This European Standard incorporates by dated or
undated reference, provisions from other publications
These normative references are cited at the
appropriate places in the text and the publications are
listed hereafter For dated references, subsequent
amendments to or revisions of any of these
publications apply to this European Standard only
when incorporated in it by amendment or revision For
undated references the latest edition of the publication
referred to applies
EN 1800:1998, Transportable gas cylinders Ð Acetylene
cylinders Ð Basic requirements and definitions.
3 Definitions
For the purpose of this European Standard the
following definitions apply
3.1
acetylene cylinder
cylinder containing a porous mass with or without
solvent for the storage of acetylene
[EN 1800:1998]
3.2
tare weight
3.2.1
for acetylene cylinders with solvent the tare weight is
expressed by indicating two weights (in kilograms)
TARE A and TARE S:
TARE A is the sum of the empty weight of the
cylinder shell, the weight of the porous mass, the
specified weight of solvent content, the weight of the
valve and the weight of all other parts that are
permanently attached (e.g by clamping or nut bolt
fixing) to the cylinder when it is going to be filled;
TARE S is TARE A plus the weight of the acetylene
required to saturate the solvent at atmospheric
pressure at 15 8C
[EN 1800:1998]
3.2.2
for solvent free acetylene cylinders the tare weight is
expressed by indicating a TARE F, where TARE F is
TARE A minus the weight of solvent
[EN 1800:1998]
3.2.3
if the tare weight as defined in 3.2.1 or 3.2.2 includes
permanently attached parts other than the valve
(normally the fixed guard), the total weight of these
parts is indicated by stampmarking in front of the
letters ªTAREº (e.g 2.3 TARE 75.1/75.6 KG)
[EN 1800:1998]
3.3 total weight
for cylinders with solvent, total weight is TARE A plus the weight of the maximum acetylene content;
for solvent free cylinders, total weight is TARE F plus the weight of the maximum acetylene content
[EN 1800:1998]
3.4 maximum acetylene content
the specified maximum weight of acetylene in the cylinder (in kilograms); when a solvent is used, it includes the weight of saturation gas
[EN 1800:1998]
3.5 porous mass
single or multi-component material introduced or formed in the cylinder in order to fill it and which, due
to its porosity, allows the absorption of the solvent/acetylene gas solution
NOTE 1 The porous mass may be either:
Ð monolithic, consisting of a solid product obtained by reacting materials or by materials connected together with a binder,
or:
Ð non-monolithic, consisting of granular, fibrous or similar materials without addition of a binder.
[EN 1800:1998]
3.6 approved porous mass
mass which has a type approval (see EN 1800:1998)
3.7 residual gas
the weight of acetylene in a cylinder returned for filling; it is defined:
Ð for a cylinder with TARE A or TARE F as the entire weight of acetylene;
Ð for a cylinder with TARE S as the entire weight of acetylene minus the weight of the saturation
acetylene
3.8 solvent
liquid which is absorbed by the porous mass and is capable of dissolving and releasing the acetylene [prEN 1800:1998]
3.9 acetylene solvent ratio
the ratio of the maximum acetylene content to the specified weight of solvent content
[EN 1800:1998]
3.10 working pressure
the maximum settled pressure in bar (gauge) at a uniform temperature of 15 8C in a cylinder containing the maximum acetylene content and the specified weight of solvent content
[EN 1800:1998]
Trang 6Page 4
EN 1801:1998
BSI 02-2000
4 Requirements for filling single
acetylene cylinders
4.1 General
Single acetylene cylinders shall not be filled unless
they meet the requirements of 4.2 to 4.4.
4.2 Information
The following information shall be available:
Ð the identification of porous mass;
Ð the specified type and content (in kilograms) of
solvent;
Ð the tare weight;
Ð the total weight;
Ð the periodic inspection status
4.3 Documentation
For cylinders examined in 4.2 documentation shall be
available to determine:
Ð the filling conditions for the cylinder;
Ð the residual gas and hence to obtain the solvent
content
Documentation may be in form of tables, graphics or
other suitable means
4.4 Prefill check
The prefill check of an acetylene cylinder and its valve
shall ensure that they are both in a serviceable
condition for filling
5 Determination of solvent content
5.1 Before filling a cylinder the solvent content shall
be determined by calculating the residual gas from
pressure and temperature and using the appropriate
documentation
NOTE Acetylene cylinders need time to reach temperature
equilibrium Special care should be taken, if the temperature is
very low and the pressure is very high.
Calculation of acetylene in cylinders shall be in
accordance with annex B (Solvent free cylinder
see clause 8.)
5.2 If the weight of the incoming acetylene cylinder,
after deduction of the residual gas, is below the
appropriate tare weight, which is stamped on the
cylinder, the loss of solvent shall be replaced
5.3 If the weight of the incoming cylinder after
allowing for residual gas content exceeds the
appropriate tare weight, the cylinder shall be examined
and the reason for overweight shall be determined
before further handling
6 Simultaneous filling of acetylene cylinders
Acetylene cylinders which are to be filled simultaneously shall have the same solvent or be separated by a protection system to prevent cross contamination with solvents
Special care shall be taken with cylinders having different porous masses or high amounts of residual gas
7 Postfill check
After the cylinder has been filled its weight shall be checked to ensure that it does not exceed the total
weight (see 3.3).
NOTE As the solvent content has been verified as correct
in clause 5, there is no need for control of the working pressure of
each individual cylinder because of the acetylene to solvent ratio established during the type approval.
8 Filling of solvent free acetylene cylinders
8.1 A solvent free cylinder shall not be filled with
acetylene, unless it meets the following requirements:
Ð it is clearly identified with the words ªsolvent freeº, stamped with the value of TARE F in kg and the letters ªFSº;
Ð it is checked by weight that it was not previously filled with solvent;
Ð the appropriate requirements of clause 4 are
fulfilled;
Ð the working pressure is identified;
Ð if it contains no residual acetylene, the cylinder shall be evacuated before filling
Solvent free acetylene cylinders shall not be filled simultaneously with acetylene cylinders containing a solvent
8.2 After filling a solvent free acetylene cylinder, a
postfill check shall be carried out in accordance
with clause 7.
The settled pressure shall be checked after filling and shall not exceed the working pressure, which is stamped on the cylinder
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Trang 7Page 5
EN 1801:1998
BSI 02-2000
Annex A (normative)
Filling of acetylene cylinders not
manufactured and approved in
accordance with European Standards
Acetylene cylinders which are not
manufactured/approved in accordance with European
Standards may be filled when the following checks are
positive
a) The porous mass with the corresponding solvent
shall be of an approved type and clearly identified
b) It shall be approved for the country of the filling
station or in the country of usage or manufacture
c) The requirements of clauses 4, 5, 6 and 7 shall be
followed
d) A calculation of the residual gas is possible and
shall be carried out
NOTE Alternatively the information for filling such cylinders
should be obtained from the mass manufacturer or the
organization responsible for the approval of the cylinder and mass.
Annex B (normative)
Calculation of acetylene in cylinders
The calculation of acetylene in cylinders containing
either acetone or dimethylformamide (DMF) solvent is
dependent upon the measurement of the pressure and
temperature within the cylinder
Measurement of the cylinder weight alone will only
give the total weight of solvent and acetylene in the
cylinder but will not indicate the shortfall of solvent or
the acetylene content including saturation gas
The acetylene-solvent ratio can be determined using
the following equation:
=
Ma
Ms
10f(p,t)
1 2 10f(p,t)
where:
Ma is the weight of acetylene in kilograms (kg);
Ms is the weight of solvent in kilograms (kg);
f(p,t) is a factor dependent upon pressure,
temperature and solvent
Since the solubility of acetylene in acetone and DMF is different there are two equations for the calculation
of f(p,t):
For acetone the equation is:
f(p,t) =
log10p 2 4,194 5 + 712,88
t + 273,15
0,456 9 + 207,8
t + 273,15
For DMF the equation is:
f(p,t) =
log10p 2 3,630 + 504,36
t + 273,15
20,982 6 + 695,8
t + 273,15
where:
p is the pressure in bar absolute;
t is the temperature in 8C
NOTE The specified weight of solvent content should be used in the equation for calculation of residual gas in the acetylene cylinders.
Trang 8BS EN
1801:1999
BSI
389 Chiswick High Road
London
W4 4AL
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