ASTM C852-93(1997)
(Guide)Standard Guide for Design Criteria for Plutonium Gloveboxes (Withdrawn 2006)
Standard Guide for Design Criteria for Plutonium Gloveboxes (Withdrawn 2006)
SCOPE
1.1 This guide defines criteria for the design of glovebox systems to be used for the handling of plutonium in any form or isotopic composition or when mixed with other elements or compounds. This guide does not apply to large scale commercial gloveboxes although many of the criteria contained herein are relevant. Not included in the criteria are systems auxiliary to the glovebox systems such as utilities, ventilation, alarm, and waste disposal. Also not addressed is the massively shielded (concrete)-type enclosure or open-face hoods, although the same basic design considerations might apply. The scope of this guide excludes specific license requirements relating to provisions for criticality prevention, hazards control, safeguards, packaging, and material handling. Observance of this guide does not relieve the user of the obligation to conform to all federal, state, and local regulations for design and construction of glovebox systems.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
WITHDRAWN RATIONALE
This guide defines criteria for the design of glovebox systems to be used for the handling of plutonium in any form or isotopic composition or when mixed with other elements or compounds.
Formerly under the jurisdiction of Committee C-26 on Nuclear Fuel Cycle, this guide was withdrawn in January 2006.
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:C852–93 (Reapproved 1997)
Standard Guide for
Design Criteria for Plutonium Gloveboxes
This standard is issued under the fixed designation C852; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope U. S. Govt. Code of Federal Regulations, Title 10 Part 20
“Standards for Protection Against Radiation” (latest edi-
1.1 This guide defines criteria for the design of glovebox
tion)
systems to be used for the handling of plutonium in any form
Nuclear Materials Licensing Code of Federal Regulations,
or isotopic composition or when mixed with other elements or
Energy, Part 50 (10CFR50) Licensing of Domestic
compounds. This guide does not apply to large scale commer-
Production and Utilization Facilities
cial gloveboxes although many of the criteria contained herein
DOE 6430.1A General Design Criteria for Nuclear Facili-
are relevant. Not included in the criteria are systems auxiliary
ties
to the glovebox systems such as utilities, ventilation, alarm,
and waste disposal. Also not addressed is the massively
3. Significance and Use
shielded (concrete)-type enclosure or open-face hoods, al-
3.1 The purpose of this guide is to establish criteria for the
though the same basic design considerations might apply. The
design of gloveboxes used as primary confinement systems to
scope of this guide excludes specific license requirements
ensure the safety of the workers and the protection of the
relatingtoprovisionsforcriticalityprevention,hazardscontrol,
environment when handling plutonium.
safeguards, packaging, and material handling. Observance of
thisguidedoesnotrelievetheuseroftheobligationtoconform
4. Design Considerations
to all federal, state, and local regulations for design and
4.1 Design considerations should include mitigating engi-
construction of glovebox systems.
neered safety features and redundant plant services to achieve
1.2 The values stated in SI units are to be regarded as the
confinement reliability. Reliability shall be considered in the
standard. The values given in parentheses are for information
light of the risk associated with postulated accidents, the
only.
probability of occurrence of the accidents, and the severity of
1.3 This standard does not purport to address all of the
theirconsequences,aswellasinthelightofnormalprocessing
safety problems, if any, associated with its use. It is the
requirements. The design for the glovebox system shall con-
responsibility of the user of this standard to establilsh appro-
sider all of the following subjects:
priate safety and health practices and determine the applica-
4.1.1 Fire,
bility of regulatory limitations prior to use.
4.1.2 Explosions,
4.1.3 Criticality,
2. Referenced Documents
4.1.4 Power failure,
2.1 ANSI Standards:
4.1.5 Uncontrolled water,
N13.1 Guides to Sampling Airborne Radioactive Materials
2 4.1.6 Other services failure,
in Nuclear Facilities
4.1.7 Pressurization or evacuation, or both,
ANSI/ASME NQA-1 QualityAssurance Requirements for
2 4.1.8 Health physics, and
Nuclear Facilities
4.1.9 Need for glovebox isolation or compartmentalization,
2.2 NFPA Pamphlets:
3 or both.
Nos. 71, 72A, 72B, 72C, and 72D
2.3 U. S. Government Document:
5. Glovebox System Design Features
5.1 The glovebox system is defined as a series of physical
barriers provided with glove ports and gloves, through which
ThisguideisunderthejurisdictionofASTMCommitteeC-26onNuclearFuel
process and maintenance operations may be performed, to-
Cycle and is the direct responsibility of Subcommittee C26.02 on Fuel and Fertile
gether with an operating ventilation system. The glovebox
Material Specifications.
system shall minimize the potential for release of radioactive
Current edition approved April 15, 1993. Published June 1993. Originally
published as C852–77. Last previous edition C852–87.
AvailablefromtheAmericanNationalStandardsInstitute,11W.42ndSt.,13th
Floor, New York, NY 10036.
3 4
Available from the National Fire ProtectionAgency (NFPA), 60 Batterymarch Available from the Superintendent of Documents, U. S. Government Printing
St., Boston, MA 02110. Office, Washington, DC 20402.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
C852
material to the environment under normal and abnormal ports.Thegloveportsshouldbeinstalledinametalfrontpanel
conditions, protect the operators from contamination under to reduce window cracking hazards, and provide shielding and
normal operating conditions, and mitigate the consequences of additional strength. A detailed dimensional analysis of the
abnormal conditions to the maximum extent practical. Com- operations would assist in eliminating blind spots or inacces-
partmentalization within and between gloveboxes shall be sible areas.
considered and installed as necessary to mitigate the potential
5.3.4 Gloves—Gloves shall be chosen on the basis of
seriousnessofaccidentsinvolvingfire,explosion,orcriticality.
resistance to possible corrosive atmospheres in the glovebox;
The glovebox system design should consider interconnecting
resistance to radiation degradation, tearing, and puncturing;
tunnels, conveyors, and passageways for transferring materials
and their capability to provide some radiation shielding to the
between adjacent gloveboxes. Provision for containment
hands. They shall also be selected on the basis of maintaining
should be provided.
maximum dexterity of hand movement (4).
5.2 Confinement:
5.4 Equipment Insertion-Removal—Bagout ports, sphincter
5.2.1 The glovebox shall be designed to operate a 125 to
seals, and air locks shall be designed and installed to facilitate
174-Pa(0.5to0.7-in.)H Ogagepressurenegativetotheroom
2 the introduction or removal of needed equipment without
in which it is located. The box and its accessory equipment
compromising contamination controls.
shallbedesignedtopreventliquidfloodingorsubjectionofthe
5.5 Lighting—1076-lx (100 foot candles) lighting shall be
box to excessive vacuum or pressure. Control devices, such as
provided on all surfaces for close work, and 538-lx (50-fc)
oil filtered U-tubes to relieve pressure, shall be positive-acting
lighting shall be provided for general illumination (5). To the
or automatic, or both. (See Ref (1) for options. )
maximumextent,practicallightingfixturesshouldbemounted
5.2.2 The glovebox, when assembled and blanked off
on the glovebox exterior to facilitate repair and replacement
(evacuated to a given negative pressure and sealed off from
and to avoid the possibility of broken glass within the
further evacuation source), shall pass a leak-rate of 0.3
glovebox.
volume% air/h when tested at a pressure differential of 1 kPa
5.6 Ventilation:
(−4 in.) H O gage for 12 h. Penetrations in the box (such as
5.6.1 The ventilation system shall be designed so that its
conduits,ports,ducts,pipes,andwindows)shallbeconstructed
capacity is sufficient to provide and maintain the design
to prevent the release of radioactive material under normal
negative pressure during normal operation and the design flow
operating conditions.
through a breach during abnormal conditions.
5.3 Glovebox Construction—Gloveboxes shall be con-
5.6.2 Where the source of combustible solvents, gases, or
structed using high-quality materials and workmanship to
vapors can be identified or postulated, explosive conditions
ensure confinement and to minimize leakage. Combustible
shall be precluded and suitable monitoring and alarm systems
materials should be held to a minimum.
shall be installed for control. Electrical systems shall be
5.3.1 Materials—Gloveboxes shall be constructed of mate-
explosion-proof and other potential ignition sources shall be
rials that will be compatible with intended use for structural
precluded.
strength, corrosion resistance, resistance to radiation degrada-
5.6.3 There shall be exhaust capacity on demand that will
tion,andradiationshielding.Theinteriorshouldbesmoothand
promptlycauseaninflowofairofatleast38linearm/min(125
free of crevices and sharp objects to a practical degree in order
linear ft/min) through a potential breach of a single glovebox
to minimize hold-up of plutonium, facilitate decontamination,
penetration. For the purpose of design, no more than one such
and prevent injury to the worker. Surface coatings may be
failure at a time need be considered.
applied to enhance corrosion resistance or facilitate cleaning,
5.6.4 If desired, a portion of the atmosphere may be
or both. (See Ref (1,2) for options.) Box fabrication tolerances
recirculated within each glovebox, thus lessening the load on
shall be specified.
heating,cooling,andmoisturecontrolequipment.Otherglove-
5.3.2 Windows—Windowsshallbeconvenientlylocatedfor
box atmospheres may be employed for special uses, such as
the worker, and shall be constructed of noncombustible or
recirculating inert gas for handling pyrophoric or unusually
fire-resistant materials that are resistant to mechanical shock
reactive materials. For fire protection, the use of bromotrifluo-
and radiation. They shall be securely fastened and gasketed or
romethane fire extinguishing systems should be considered.
sealed with material that will resist deterioration by chemical
Recirculation systems shall be equipped with air-cleaning
attack and radiation degradation, and permit replacement with
equipment. Continuous radioactive monitors or samplers may
minimum risk of laboratory contamination. (See Ref (3) for
be used to assist in maintaining air quality in such systems.
types of material.) Laminated glass and laminated polycarbon-
5.6.5 Filter, scrubbers, demisters, and other air-cleaning
ate are the preferred materials.
devices shall be provided to remove excessive moisture, toxic
5.3.3 Glove Ports— Glove ports shall be designed to allow
or noxious gases, and airborne particulates exhausted to the
replacement of gloves without losing contamination control.
ventilation system to levels that are as low as reasonably
Ports should be located to facilitate both operating and main-
achievable; requirements shall be specified by the user. An
tenance work, and take into account the need for two-handed
easily replaced HEPAfilter, preceded with a roughing filter to
operation,depthofreach
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