REGDOC-2.5.6, Design of Rooms Where Unsealed Nuclear Substances are Handled - Consultation

Consultation on REGDOC-2.5.6, Design of Rooms Where Unsealed Nuclear Substances are Handled is now closed. Thank you to everyone who submitted comments.

Regulatory document REGDOC-2.5.6, Design of Rooms Where Unsealed Nuclear Substances Are Handled provides requirements, guidance and a recommended approach for meeting the room design requirements under paragraph 3(1)(l) of the Nuclear Substances and Radiation Devices Regulations. It also provides guidance on performing shielding design analyses as a component of keeping doses as low as reasonably achievable (ALARA) pursuant to paragraph 4(a) of the Radiation Protection Regulations.

This document is the first version and supersedes GD-52, Design of Nuclear Substance Laboratories and Nuclear Medicine Rooms (May 2010).

The information in this document is consistent with modern national and international practices for addressing issues and elements that control and enhance nuclear safety. In particular, this document establishes a modern, risk-informed approach to the design of rooms where unsealed nuclear substances are handled.

Potential impacts

The CNSC welcomes information on the potential impacts to the regulated community or alternative approaches to meeting the document’s objectives. Interested stakeholders may provide information about the potential impacts of incorporating the requirements and guidance in this document into their operations. Comment on the potential impacts of this draft regulatory document

Consultation on REGDOC-2.5.6, Design of Rooms Where Unsealed Nuclear Substances are Handled is now closed. Thank you to everyone who submitted comments.

Regulatory document REGDOC-2.5.6, Design of Rooms Where Unsealed Nuclear Substances Are Handled provides requirements, guidance and a recommended approach for meeting the room design requirements under paragraph 3(1)(l) of the Nuclear Substances and Radiation Devices Regulations. It also provides guidance on performing shielding design analyses as a component of keeping doses as low as reasonably achievable (ALARA) pursuant to paragraph 4(a) of the Radiation Protection Regulations.

This document is the first version and supersedes GD-52, Design of Nuclear Substance Laboratories and Nuclear Medicine Rooms (May 2010).

The information in this document is consistent with modern national and international practices for addressing issues and elements that control and enhance nuclear safety. In particular, this document establishes a modern, risk-informed approach to the design of rooms where unsealed nuclear substances are handled.

Potential impacts

The CNSC welcomes information on the potential impacts to the regulated community or alternative approaches to meeting the document’s objectives. Interested stakeholders may provide information about the potential impacts of incorporating the requirements and guidance in this document into their operations. Comment on the potential impacts of this draft regulatory document

Consultation has concluded
  • Design Assessment Form for Intermediate level rooms

    by Jessie,

    Room Classification:

    • Intermediate level room



    Section A – General Information (all fields required)

    Date:


    A-1 Organization name:


    A-2 Contact person:


    A-3 Contact telephone number:


    A-4 Contact email:


    A-5 Classification of rooms covered by this form:


    A-6 Building name:


    A-7 Room numbers covered by this form:


    A-8 Reviewed by (signature of person responsible):



    Section B - Flooring, work surfaces, cupboards, shelves, walls and ceiling

    B-1 Flooring, work surfaces, chairs , cupboard and shelving have a smooth, impervious, washable and chemical-resistant finish

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section C - Emergency facilities and general contamination control considerations

    No requirements. For guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section D – Plumbing

    D-1 Routinely disposing nuclear substances via sewer system, if yes provide justification below

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section E – Access Control

    E-1 Access control system in place (key, keypad, key fob, other)

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    E-2 Lockable doors

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    E-3 Secondary lockable storage area for shared area

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    E-4 Clearly delineated designated area where nuclear substances are handled

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section F – Shielding and radiation control

    No requirements. For guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section G – Waste

    No requirements. For guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section H – Room Ventilation and air flow

    No requirements. For guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section I – Fume hood and hot cell design

    No requirements. For guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section J - Fume hood and hot cell location

    No requirements. For guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section K - Ducts, vents and stacks

    No requirements. For guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    To submit the completed design assessment form (DAF) and additional information, if applicable:

    Mail:

    Canadian Nuclear Safety Commission

    Directorate of Nuclear Substance Regulation

    P.O. Box 1046, Station B

    280 Slater Street

    Ottawa, ON K1P 5S9


    Email:

    cnsc.forms-formulaires.ccsn@canada.ca


    Comment on DAF for intermediate level rooms

  • Design Assessment Form for High level rooms

    Room Classification:

    • High level room



    Section A – General Information (all fields required)

    Date:


    A-1 Organization name:


    A-2 Contact person:


    A-3 Contact telephone number:


    A-4 Contact email:


    A-5 Classification of rooms covered by this form:


    A-6 Building name:


    A-7 Room numbers covered by this form:


    A-8 Reviewed by (signature of person responsible):



    Section B - Flooring, work surfaces, cupboards, shelves, walls and ceiling

    B-1 Flooring, work surfaces, chairs , cupboard and shelving have a smooth, impervious, washable and chemical-resistant finish

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section C - Emergency facilities and general contamination control considerations

    C-1 Personnel decontamination facilities

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    C-2 Emergency lighting

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section D – Plumbing

    D-1 Routinely disposing nuclear substances via sewer system, if yes provide justification below

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section E – Access Control

    E-1 Access control system in place (key, keypad, key fob, other)

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    E-2 Lockable doors

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    E-3 Secondary lockable storage area for shared area

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    E-4 Clearly delineated designated area where nuclear substances are handled

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    E-5 Ground floor windows are secure

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section F – Shielding and radiation control

    F-1 Dose estimates to NEWs and non-NEWs

    • (field for attachment – required)


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section G – Waste

    No requirements. For guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section H – Room Ventilation and air flow

    H-1 Prevent atmospheric released of nuclear substances to environment

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    H-2 Dedicated system to capture and contain volatile, aerosolized or gaseous nuclear substances

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    H-3 Exhaust systems that incorporate measures to eliminate or minimize releases to the environment

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    H-4 Fume hoods and hot cells remain on at all times when nuclear substances are present

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    H-5 Fume hoods and hot cells have a continuous monitoring device for proper functioning of the hood

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    H-6 Fume hoods are not used as the sole means of room air exhaust. If this is unavoidable, a bypass shall be installed to ensure ventilation when the sash is closed

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    H-7 Nuclear exhaust systems are not inadvertently modified in a manner which interferes with their design function

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    H-8 Nuclear exhaust systems are not connected to the normal room ventilation systems

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    H-9 Provide the CNSC with detailed information about any filtration used. This will include filtration monitoring and exchanges

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section I – Fume hood and hot cell design

    I-1 Constructed of smooth, impervious, washable and chemical resistant material

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    I-2 Designed to contain spills such that they cannot readily spread beyond their interior surfaces

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    I-3 Equipped with measures to control airborne radioactive contaminants

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    I-4 Select fume hoods and hot cells based on adequacy for the intended work

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    I-5 Hot cells equipped with shielding adequate for the intended work

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    I-6 Maintain the interior of hot cells at negative pressure with respect to the room in which the hot cell is located

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    I-7 Have back up power installed for hot cell exhausting fans

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section J - Fume hood and hot cell location

    No requirements. For guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section K - Ducts, vents and stacks

    K-1 All ductwork is constructed of corrosion-resistant materials appropriate for the nuclear substances used in the fume hood or hot cell

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    K-2 All connections and joints are sufficiently sealed as to prevent nuclear substances from leaking into adjacent air spaces

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    K-3 Nuclear exhaust ducts both on the ducts themselves and on any plans provided to maintenance personnel or contractors are clearly identified

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    K-4 Locate exhaust stacks or vents on the roof as far away as possible and downwind from any air intakes to prevent the recirculation nuclear substances being released

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    K-5 Demonstrate via atmospheric dispersion modelling or other calculations that doses to the public arising from both routine releases and foreseeable worst-case scenarios, are ALARA and will not exceed applicable dose limits

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    K-6 Locate fume hood exhaust fans close to the discharge point

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    To submit the completed design assessment form (DAF) and additional information, if applicable:

    Mail:

    Canadian Nuclear Safety Commission

    Directorate of Nuclear Substance Regulation

    P.O. Box 1046, Station B

    280 Slater Street

    Ottawa, ON K1P 5S9


    Email:

    cnsc.forms-formulaires.ccsn@canada.ca


    Comment on DAF for High level rooms

  • Design Assessment Form for Containment level rooms

    by Jessie,

    Room Classification:

    • Containment level room



    Section A – General Information (all fields required)

    Date:


    A-1 Organization name:


    A-2 Contact person:


    A-3 Contact telephone number:


    A-4 Contact email:


    A-5 Classification of rooms covered by this form:


    A-6 Building name:


    A-7 Room numbers covered by this form:


    A-8 Reviewed by (signature of person responsible):



    Section B - Flooring, work surfaces, cupboards, shelves, walls and ceiling

    B-1 Flooring, work surfaces, chairs , cupboard and shelving have a smooth, impervious, washable and chemical-resistant finish

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section C - Emergency facilities and general contamination control considerations

    C-1 Personnel decontamination facilities

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    C-2 Emergency lighting

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section D – Plumbing

    D-1 Routinely disposing nuclear substances via sewer system, if yes provide justification below

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section E – Access Control

    E-1 Access control system in place (key, keypad, key fob, other)

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    E-2 Lockable doors

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    E-3 Secondary lockable storage area for shared area

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    E-4 Clearly delineated designated area where nuclear substances are handled

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    E-5 Ground floor windows are secure

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section F – Shielding and radiation control

    F-1 Dose estimates to NEWs and non-NEWs

    • (field for attachment – required)


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section G – Waste

    No requirements. For guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section H – Room Ventilation and air flow

    H-1 Prevent atmospheric released of nuclear substances to environment

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    H-2 Dedicated system to capture and contain volatile, aerosolized or gaseous nuclear substances

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    H-3 Exhaust systems that incorporate measures to eliminate or minimize releases to the environment

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    H-4 Fume hoods and hot cells remain on at all times when nuclear substances are present

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    H-5 Fume hoods and hot cells have a continuous monitoring device for proper functioning of the hood

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    H-6 Fume hoods are not used as the sole means of room air exhaust. If this is unavoidable, a bypass shall be installed to ensure ventilation when the sash is closed

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    H-7 Nuclear exhaust systems are not inadvertently modified in a manner which interferes with their design function

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    H-8 Nuclear exhaust systems are not connected to the normal room ventilation systems

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    H-9 Provide the CNSC with detailed information about any filtration used. This will include filtration monitoring and exchanges

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section I – Fume hood and hot cell design

    I-1 Constructed of smooth, impervious, washable and chemical resistant material

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    I-2 Designed to contain spills such that they cannot readily spread beyond their interior surfaces

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    I-3 Equipped with measures to control airborne radioactive contaminants

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    I-4 Select fume hoods and hot cells based on adequacy for the intended work

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    I-5 Hot cells equipped with shielding adequate for the intended work

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    I-6 Maintain the interior of hot cells at negative pressure with respect to the room in which the hot cell is located

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    I-7 Have back up power installed for hot cell exhausting fans

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section J - Fume hood and hot cell location

    No requirements. For guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section K - Ducts, vents and stacks

    K-1 All ductwork is constructed of corrosion-resistant materials appropriate for the nuclear substances used in the fume hood or hot cell

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    K-2 All connections and joints are sufficiently sealed as to prevent nuclear substances from leaking into adjacent air spaces

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    K-3 Nuclear exhaust ducts both on the ducts themselves and on any plans provided to maintenance personnel or contractors are clearly identified

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    K-4 Locate exhaust stacks or vents on the roof as far away as possible and downwind from any air intakes to prevent the recirculation nuclear substances being released

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    K-5 Demonstrate via atmospheric dispersion modelling or other calculations that doses to the public arising from both routine releases and foreseeable worst-case scenarios, are ALARA and will not exceed applicable dose limits

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    K-6 Locate fume hood exhaust fans close to the discharge point

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    To submit the completed design assessment form (DAF) and additional information, if applicable:

    Mail:

    Canadian Nuclear Safety Commission

    Directorate of Nuclear Substance Regulation

    P.O. Box 1046, Station B

    280 Slater Street

    Ottawa, ON K1P 5S9


    Email:

    cnsc.forms-formulaires.ccsn@canada.ca


    Comment on DAF for Containment level rooms

  • Design Assessment Form for Nuclear Medicine rooms - hot lab

    by Jessie,

    Room Classification:

    • Nuclear Medicine room - hot lab



    Section A – General Information (all fields required)

    Date:


    A-1 Organization name:


    A-2 Contact person:


    A-3 Contact telephone number:


    A-4 Contact email:


    A-5 Classification of rooms covered by this form:


    A-6 Building name:


    A-7 Room numbers covered by this form:


    A-8 Reviewed by (signature of person responsible):



    Section B - Flooring, work surfaces, cupboards, shelves, walls and ceiling

    B-1 Flooring, work surfaces, chairs , cupboard and shelving have a smooth, impervious, washable and chemical-resistant finish

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section C - Emergency facilities and general contamination control considerations

    C-1 Personnel decontamination facilities

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    C-2 Emergency lighting

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section D – Plumbing

    D-1 Routinely disposing nuclear substances via sewer system, if yes provide justification below

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section E – Access Control

    E-1 Access control system in place (key, keypad, key fob, other)

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    E-2 Lockable doors

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    E-3 Secondary lockable storage area for shared area

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    E-4 Clearly delineated designated area where nuclear substances are handled

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    E-5 Ground floor windows are secure

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section F – Shielding and radiation control

    F-1 Dose estimates to NEWs and non-NEWs

    • (field for attachment – required)


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section G – Waste

    No requirements. For guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section H – Room Ventilation and air flow

    H-1 Prevent atmospheric released of nuclear substances to environment

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    H-2 Dedicated system to capture and contain volatile, aerosolized or gaseous nuclear substances

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    H-3 Exhaust systems that incorporate measures to eliminate or minimize releases to the environment

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    H-4 Fume hoods and hot cells remain on at all times when nuclear substances are present

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    H-5 Fume hoods and hot cells have a continuous monitoring device for proper functioning of the hood

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    H-6 Fume hoods are not used as the sole means of room air exhaust. If this is unavoidable, a bypass shall be installed to ensure ventilation when the sash is closed

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    H-7 Nuclear exhaust systems are not inadvertently modified in a manner which interferes with their design function

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    H-8 Nuclear exhaust systems are not connected to the normal room ventilation systems

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    H-9 Provide the CNSC with detailed information about any filtration used. This will include filtration monitoring and exchanges

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section I – Fume hood and hot cell design

    I-1 Constructed of smooth, impervious, washable and chemical resistant material

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    I-2 Designed to contain spills such that they cannot readily spread beyond their interior surfaces

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    I-3 Equipped with measures to control airborne radioactive contaminants

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    I-4 Select fume hoods and hot cells based on adequacy for the intended work

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    I-5 Hot cells equipped with shielding adequate for the intended work

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    I-6 Maintain the interior of hot cells at negative pressure with respect to the room in which the hot cell is located

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    I-7 Have back up power installed for hot cell exhausting fans

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section J - Fume hood and hot cell location

    No requirements. For guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section K - Ducts, vents and stacks

    K-1 All ductwork is constructed of corrosion-resistant materials appropriate for the nuclear substances used in the fume hood or hot cell

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    K-2 All connections and joints are sufficiently sealed as to prevent nuclear substances from leaking into adjacent air spaces

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    K-3 Nuclear exhaust ducts both on the ducts themselves and on any plans provided to maintenance personnel or contractors are clearly identified

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    K-4 Locate exhaust stacks or vents on the roof as far away as possible and downwind from any air intakes to prevent the recirculation nuclear substances being released

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    K-5 Demonstrate via atmospheric dispersion modelling or other calculations that doses to the public arising from both routine releases and foreseeable worst-case scenarios, are ALARA and will not exceed applicable dose limits

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    K-6 Locate fume hood exhaust fans close to the discharge point

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    To submit the completed design assessment form (DAF) and additional information, if applicable:

    Mail:

    Canadian Nuclear Safety Commission

    Directorate of Nuclear Substance Regulation

    P.O. Box 1046, Station B

    280 Slater Street

    Ottawa, ON K1P 5S9


    Email:

    cnsc.forms-formulaires.ccsn@canada.ca


    Comment on DAF for Nuclear Medicine rooms - hot lab

  • Design Assessment Form for Nuclear Medicine rooms - other

    by Jessie,

    Room Classification:

    • Nuclear medicine room - other



    Section A – General Information (all fields required)

    Date:


    A-1 Organization name:


    A-2 Contact person:


    A-3 Contact telephone number:


    A-4 Contact email:


    A-5 Classification of rooms covered by this form:


    A-6 Building name:


    A-7 Room numbers covered by this form:


    A-8 Reviewed by (signature of person responsible):



    Section B - Flooring, work surfaces, cupboards, shelves, walls and ceiling

    B-1 Flooring, work surfaces, chairs , cupboard and shelving have a smooth, impervious, washable and chemical-resistant finish

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section C - Emergency facilities and general contamination control considerations

    No requirements. For guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section D – Plumbing

    D-1 Routinely disposing nuclear substances via sewer system, if yes provide justification below

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section E – Access Control

    E-1 Access control system in place (key, keypad, key fob, other)

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    E-2 Lockable doors

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    E-3 Secondary lockable storage area for shared area

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    E-4 Clearly delineated designated area where nuclear substances are handled

    • Yes, this requirement has been met
    • No (justification required)

    Justification:


    For further guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section F – Shielding and radiation control

    No requirements. For guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section G – Waste

    No requirements. For guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section H – Room Ventilation and air flow

    No requirements. For guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section I – Fume hood and hot cell design

    No requirements. For guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section J - Fume hood and hot cell location

    No requirements. For guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    Section K - Ducts, vents and stacks

    No requirements. For guidance see REGDOC-2.5.6, Design Guide for Rooms Where Unsealed Nuclear Substances are Handled



    To submit the completed design assessment form (DAF) and additional information, if applicable:

    Mail:

    Canadian Nuclear Safety Commission

    Directorate of Nuclear Substance Regulation

    P.O. Box 1046, Station B

    280 Slater Street

    Ottawa, ON K1P 5S9


    Email:

    cnsc.forms-formulaires.ccsn@canada.ca


    Comment on DAF for Nuclear Medicine rooms - other