BS ISO 11933-3-1999 Components for containment enclosures - Transfer systems such as plain doors airlock chambers double door transfer systems leaktight connections for waste drums.pdf

1、BRITISH STANDARD BS ISO 11933-3:1998 Components for containment enclosures Part3: Transfer systems such as plain doors, airlock chambers, double door transfer systems, leaktight connections for waste drums ICS13.280BSISO11933-3:1998 This BritishStandard, having been prepared under the directionof th

2、e Engineering SectorCommittee, was publishedunder the authority ofthe Standards Committee andcomes into effect on 15April1999 BSI05-2000 ISBN 0 580 30960 6 National foreword This BritishStandard reproduces verbatim ISO11933-3:1998 and implements it as the UK national standard. The UK participation i

3、n its preparation was entrusted to Technical Committee NCE/2, Health physics instrumentation, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the

4、UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The BritishStandards which implement international or European publication

5、s referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions

6、 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, pages i and ii, theISO title page, pa

7、gesii tovi, pages1 to40 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No. Date CommentsBSISO11933-3:1998 BSI 05-2000 i C

8、ontents Page National foreword Inside front cover Foreword v Text of ISO11933-3 1ii blankBSISO11933-3:1998 ii BSI 05-2000 Contents Page Foreword v Introduction 1 1 Scope 1 2 Normative references 1 3 Definitions 2 4 Designation 2 4.1 Explanation of the reference number 2 4.1.1 Series allocation 2 4.1

9、.2 Alphabetical codes corresponding to the mounting procedures 3 4.1.3 Alphabetical codes corresponding to the construction materials 3 4.2 Designation Examples and explanation 3 4.2.1 Plain doors 3 4.2.2 Airlock chambers 4 4.2.3 Double door transfer systems 5 4.2.4 Leaktight connections for waste d

10、rums 5 5 Plain doors 5 5.1 General 5 5.1.1 Application 5 5.1.2 Precautions for opening the doors 5 5.1.3 Choice of the leaktight system (way of locking) 6 5.2 Description 6 5.2.1 Shape 6 5.2.2 Assembly 7 5.2.3 Materials 8 5.2.4 Seals 8 5.2.5 Dimensions 9 5.2.6 Examples 11 6 Airlock chambers (seeFigu

11、re 6) 11 6.1 General 11 6.2 Various types of airlock chambers 11 6.2.1 Classification according to the ventilation mode 11 6.2.2 Classification according to the geometrical shape 13 6.3 Precautions to be taken during use of an airlock chamber 13 6.4 Ventilation of airlock chambers 13 6.5 Description

12、 13 6.5.1 Shape 13 6.5.2 Assembly (seeFigure 9) 13 6.5.3 Material 15 6.5.4 Doors for airlock chambers 15 6.5.5 Dimensions 16 6.5.6 Examples 18 7 Double door transfer systems 18 7.1 General 18 7.2 Type1 double door transfer systems 19 7.2.1 General 19 7.2.2 Principle of use 20 7.2.3 Assembly 21 7.2.4

13、 Material 22 7.2.5 Dimensions (seeFigure 16) 22 7.3 Type2 double door transfer systems 23BSISO11933-3:1998 BSI 05-2000 iii Page 7.3.1 General 23 7.3.2 Operation 24 7.3.3 Assembly 25 7.3.4 Material 26 7.3.5 Dimensions (seeFigure 20) 26 8 Leaktight connections for waste drums 27 8.1 General 27 8.2 Pri

14、nciple of use 28 8.3 Type1 leaktight connections for waste drums 29 8.3.1 General 29 8.3.2 Operation 30 8.3.3 Material 30 8.3.4 Dimensions (seeFigure 24) 30 8.4 Type2 leaktight connections for waste drums 31 8.4.1 General 31 8.4.2 Operation 32 8.4.3 Material 32 8.4.4 Dimensions (seeFigure 26) 32 Ann

15、ex A (informative) Examples of plain doors and airlock chambers 34 Annex B (informative) Bibliography 40 Figure 1 Door for containment enclosures 6 Figure 2 Examples of ways of locking the doors 7 Figure 3 Different ways of mounting the doors 8 Figure 4 Standard dimensions of circular plain doors 9

16、Figure 5 Standard dimensions of rectangular or square plain doors 10 Figure 6 General view of an airlock chamber 11 Figure 7 Various types of airlock chambers 12 Figure 8 Different profiles of airlock chambers 14 Figure 9 Various ways of assembling airlock chambers 15 Figure 10 Dimensions of introdu

17、ction airlock chambers 16 Figure 11 Dimensions of T-shaped airlock chambers 18 Figure 12 Principle of double door transfer system 19 Figure 13 Type1 double door transfer system 20 Figure 14 Operating principle of a type1 double door transfer system 21 Figure 15 Mounting of the flange 22 Figure 16 Di

18、mensions of type1 double door transfer systems 23 Figure 17 Type2 double door transfer system 24 Figure 18 Operating principle of a type2 double door transfer system 25 Figure 19 Mounting of the double door transfer system 26 Figure 20 Dimensions of type2 double door transfer system 27 Figure 21 Lea

19、ktight connection system for waste drums 28 Figure 22 Operating principle of leaktight connection systems for wastedrums 29 Figure 23 Type1 leaktight connection for waste drums 30 Figure 24 Dimensions of type1 leaktight connection for waste drums 31 Figure 25 Type2 leaktight connection for waste dru

20、ms 32 Figure 26 Dimensions of type2 leaktight connection for waste drums 33 Figure A.1 General view of refrigerator-type door 34BSISO11933-3:1998 iv BSI 05-2000 Page Figure A.2 General view of inflatable-seal sliding door 35 Figure A.3 Detail of components of inflation-seal sliding door 35 Figure A.

21、4 Operating principle of inflatable-seal sliding door 36 Figure A.5 General view of sliding door operated by lifting 36 Figure A.6 Operating principle of sliding door (lifting) 37 Figure A.7 Detail of components 38 Figure A.8 Operating principle 39 Figure A.9 General view 40 Figure A.10 Detail of mo

22、unting 40 Table 1 Series allocation 3 Table 2 Correlation between the reference numbers of plain doors and the useful diameters of ports receiving plain doors 4 Table 3 Correlation between the reference numbers of plain doors/airlock chambers and the useful diameters of related transfer systems 4 Ta

23、ble 4 Standard dimensions of circular plain doors 9 Table 5 Standard dimensions of rectangular or square plain doors 10 Table 6 Standard dimensions of introduction airlock chambers with circular cross-section 16 Table 7 Standard dimensions of introduction airlock chambers with square or rectangular

24、cross-section 17 Table 8 Standard dimensions of linking or introduction airlock chambers with circular cross-section 17 Table 9 Standard dimensions of linking or introduction airlock chambers with square or rectangular cross-section 18 Table 10 Standard dimensions of type1 double door transfer syste

25、ms 23 Table 11 Dimensions of type2 double door transfer systems 26 Table 12 Dimensions of type1 leaktight connections for waste drums 31 Table 13 Dimensions of type2 leaktight connections for waste drums 33 Descriptors: Nuclear energy, radioactive materials, radiation protection, environmental prote

26、ction, operator protection, containment enclosures, components, specifications, characteristics, dimensions, designation, interchangeability.BSISO11933-3:1998 BSI 05-2000 v Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO m

27、ember 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, governm

28、ental 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. Draft International Standards adopted by the technical committees are circulated to the m

29、ember bodies for voting. Publication as an International Standard requires approval by at least75% of the member bodies casting a vote. International Standard ISO11933-3 was prepared by Technical Committee ISO/TC85, Nuclear energy, Subcommittee SC2, Radiation protection. ISO11933 consists of the fol

30、lowing parts, under the general title Components for containment enclosures: Part1: Glove/bag ports, bungs for glove/bag ports, enclosure rings and interchangeable units; Part2: Gloves, welded bags, gaiters for remote-handling tongs and for manipulators; Part3: Transfer systems such as plain doors,

31、airlock chambers, double doors for leaktight transfer, leaktight connections for waste drums; Part4: Ventilation and air cleaning systems, such as filters, traps, pressure regulators, safety and control devices; Part5: Penetration for electrical and fluid circuits. Annex A and Annex B of this part o

32、f ISO11933 are for information only.vi blankBSISO11933-3:1998 BSI 05-2000 1 Introduction A great number of components or systems used for achieving leaktight transfer functions in containment enclosures are presently offered on the market. These equipment or systems may have different geometrical di

33、mensions; may differ by their design criteria; may require holes of different diameters to be installed on the containment enclosure wall; may be attached to the wall by different methods; may use different mounting techniques for their corresponding leaktightness. These components or systems are ge

34、nerally not mutually compatible, but nevertheless often have the same performance level; therefore it was not possible to select only one system or component as the International Standard. As a consequence, the aim of this part of ISO11933 is to present general principles of design and operation, an

35、d to fully describe the most common systems or components in use in order to: avoid new parallel systems or components based on identical principles and differing only in details or geometric dimensions; make possible interchangeability between existing devices; demonstrate consistency among the var

36、ious parts of the same system such as the basic elements (described in ISO11933-1), the associated leaktight components (described in ISO11993-2) or the transfer systems (described in this part of ISO11933). 1 Scope This part of ISO11933 specifies the designations and characteristics of the various

37、transfer systems which can be mounted on containment enclosures either used alone or placed behind a shielding wall. These transfer systems may also be used directly on shielding walls made of metal (carbon steel or stainless steel) or of concrete. The systems covered by this part of ISO11933 are pl

38、ain doors, airlock chambers, double door transfer systems, leaktight connections for waste drums. Some of these systems, such as plain doors, airlock chambers or double door transfer systems can be used in addition to components defined in ISO11933-1 or ISO11933-2 (glove/bag ports, bungs for glove/b

39、ag ports, support rings, welded bags,etc.). Large size doors and airlock chambers, used for personnel or large equipment, are not within the scope of this part of ISO11933. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions

40、of this part of ISO11933. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of ISO11933 are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below

41、. Members of IEC and ISO maintain registers of currently valid International Standards. ISO7212:1986, Enclosures for protection against ionizing radiation Lead shielding units for50mm and100mm thick walls. ISO9404-1:1991, Enclosures for protection against ionizing radiation Lead shielding units for1

42、50mm,200mm and250mm thick walls Part1: Chevron units of150mm and200mm thickness. ISO10648-1:1997, Containment enclosures Part1: Design principles. ISO10648-2:1994, Containment enclosures Part2: Classification according to tightness and associated checking methods. BSISO11933-3:1998 2 BSI 05-2000 ISO

43、11933-1:1997, Components for containment enclosures Part1: Glove/bag ports, bungs for glove/bag ports, enclosure rings and interchangeable units. ISO11933-2:1997, Components for containment enclosures Part2: Gloves, welded bags, gaiters for remote-handling tongs and for manipulators. 3 Definitions F

44、or the purposes of this part of ISO11933, the following definitions apply. 3.1 plain door a device used to close an opening in a containment enclosure or in an airlock chamber. The plain doors may be leaktight and/or shielded 3.2 airlock chamber an isolated volume used to introduce equipment or mate

45、rials into a containment enclosure or to transfer such equipment or materials from a containment enclosure to another without breaking the leaktightness or the shielding of the enclosure. It constitutes a barrier against spread of contamination and/or introduction of external air pollution. Two type

46、s of airlock chambers are considered below 3.2.1 leaktight airlock chamber this kind of airlock chamber is used to maintain or protect the purity of the atmosphere of the containment enclosure and/or to avoid the spread of contamination during transfer of materials or equipments 3.2.2 shielded airlo

47、ck chamber this kind of airlock chamber comprises shielded walls and doors, for use with shielded containment enclosures 3.3 double door transfer system a system which allows the connection of a container to an enclosure in such a way that during the transfer and after the transfer, minimum contamin

48、ation may occur on the external parts of the door of the enclosure and on the door of the container (for further details seeclause7) 3.4 leaktight connection for waste drums a transfer system, based on the principle of the double door transfer system, used to transfer contaminated materials between

49、a containment enclosure and a waste drum NOTEIn this system, the containment enclosure and the waste drum may or may not be shielded. 4 Designation The designation of the transfer systems for containment enclosures consists of its name written in full, reference to this part of ISO11933 and the reference number as explained in4.1. 4.1 Explanation of the reference number The reference number consists of a four digit number fixed by th