Outcome 8 Flashcards
What are the two organizations that regulate the transportation of radioactive materials in Canada?
- CNSC
- Transport Canada
What is the regulation called at CNSC and what does it apply to?
packaging and transport of nuclear substances regulations (PTNS reg)
- applies to only class 7 dangerous goods (radioactive substances)
What is the act called for Transport Canada and what does it apply to?
Transport of Dangerous Goods act (TDG act)
- applies to all classes of dangerous goods
(Ie. biohazard, radioactive, flammable)
What differs between provinces in terms of the TDG act?
They’re all the same as the federal. Difference = fines
The TDG act works together with _____ to regulate transportation of radioactive materials from ___________.
TDG works with CNSC
Transport radioactive material from one controlled area to another.
What are the TDG training requirements?
- training is required for all that handle and transport dangerous goods
- different training for different duties
TDG training is still required for those handling and transporting radioactive materials even with direct supervision of those that are TDG trained. T/F
False.
Not required if under direct supervision of someone TDG trained
how long are the tdg certificate valid for ground transportation? air transportation?
ground - 3 years
air - 2 years
how long are employers supposed to keep tdg certificates after expiry?
2 years after expiration
how many classes of dangerous goods are there?
9
what do radioactive materials fall under?
class 7
radioactive materials are divided into how many categories? what are they given?
3 categories
un number
what are the three un numbers?
- 2908
- 2910
- 2915
what is the description for UN 2908?
radioactive material, excepted package - empty packaging
what is the description for UN 2910?
radioactive material, excepted package - limited quantity of material
what is the description for UN 2915?
radioactive material, type a package
who is the consignor?
shipper; the person sending the package
who is the consignee?
person receiving the package
how many copies of shipper’s declaration document is prepared?
3 copies - consignor’s records, carrier and consignee
how long are the shipper’s declaration document kept for?
2 years
what are the required labels?
- UN number with appropriate description
- class 7 must be indicated (found in un description and radiation hazard labels)
- hazard labels required only for type a packages (2x)
- if liquid, should have red arrow pointing at the top (not legislated)
- empty package - UN 2908 …
what is a placard?
radiation warning signs placed on EACH SIDE and EACH END on the outside of vehicles to warn others of dangerous goods on board
when are placards required?
tdg states only type a, yellow III labels require placards
carriers should readily have placards in their vehicles. t/f
false.
cosignors must give them to the carrier
what are the cnsc regulations on radioactive material?
- ensure only trained people are handling radioactive sources/come into contact with the source
- packages and security surround transport maximized
- packaging and transport requirements are based on the amount of radioactivity and type of radionuclide`
what are the two kinds of package types used for radioactive material in nm?
excepted and type a
when do PTNS regulations not apply for a nuclear substance?
- if it has specific activity of 70 kBq/kg or less
- incorporated or implanted in a person/animal for medical purposes
- contained in the remains of a person or an animal
- contained in a sample of material taken for bioassay purposes
- used by licensee on private property with controlled access
how do you choose the type of package?
content limits based on A1 and A2
what is the activity limit for excepted packages that contain solids in special form?
10^-3 A1
what is the activity limit for excepted packages that contain solids in other form?
10^-3 A2
what is the activity limit for excepted packages that contain liquids?
10^-4 A2
what is the activity limit for type a packages that contain solids in special form?
A1
what is the activity limit for type a packages that contain solids in other form?
A2
what is the activity limit for type a packages that contain liquid form?
A2
what is “special form”?
when a source is in an indispersible solid or in a sealed capsule
nm - sealed sources
when are excepted packages used?
- smallest quantity and least damaging NS
what are labels required for excepted packages?
- un2910 excepted package - limited activity
- inner package must have safety mark “radioactive” clearly visible upon opening the package
what is the limited activity for excepted packages on the external surface of the package?
at any point on the external surface CAN’T EXCEED 5 uSv/hr
what is the activity limit for non-fixed radioactive contamination on the external surface?
CAN’T EXCEED 4Bq/cm2 over a 300cm2 wipe
how many times is a wipe test done when youre shipping?
at least once – twice if you’re sending an empty package
how many times is a wipe test done when you receive a package?
3 times
- outside, inside, and actual container
what is the level of internal non-fixed contamination that an empty box cannot exceed?
400 Bq/cm2
what is the level of external non-fixed contamination that an empty box cannot exceed?
4 Bq/cm2
what are the steps for shipping an excepted package?
- does it meet activity limits?
- take a reading at surface in uSv/hr (<5 uSv/h?)
- wipe test the exterior (<4Bq/cm2)
*4. wipe test interior if empty box (<400 Bq/cm2) - is the box in good condition?
- “radioactive” visible as soon as exterior opened?
- appropriate un number and shipping name on exterior
- seal the package
- 3x shipping documents
what are the 3 categories of type a packaging?
white I, yellow II, yellow III
how do you determine which category your type a package belongs to?
by calculating the transport index (TI)
how do you calculate TI?
uSv/h at 1m divided by 10
what is the radioactive label “white I” mean?
there is no reading at 1m = 0 TI
<5 uSv/h at surface
what differs between the white and yellow radioactive labels?
white = just radionuclide and activity needed on the sticker
yellow = radionuclide, activity and TI listed
what does a yellow II radioactive label mean?
- dose rate at the surface is 5-500 uSv/h
- dose rate at 1m <10 uSv/h, TI =<1
what does a yellow III radioactive label mean?
- dose rate at surface 500uSv/h-2mSv/h
- dose rate at 1m <100 uSv/h, TI =<10
what are the steps in packaging a type a package?
- dose it meet activity limits?
- take reading at surface in uSv/h
- take reading at 1m in uSv/h
- what is the TI (to ONE decimal place)
- white I, yellow II, yellow III? – fill with radionuclide, activity + TI
- wipe test exterior <4Bq/cm2?
- radioactive labels on opposite sides of package
- proper un number and description on box? (UN2915)
- seal + have 3x tdg transport documents
when do you remove/deface the radioactive labels?
as soon as the radioactive material is unpacked
what are some consignor responsibilities?
- provide transportation documents
- give handling information if needed
- restriction on the mode of transport
- emergency arrangements
- ensuring carrier is TDG trained
- if carrier is not a NEW, they can’t receiving >2.5 uSv/h
what are some carrier responsibilities?
- check shipment for labelling and documents
- attach placards if required
- load, stow and transport in accordance to consignor
- keep tdg shipping documents on seat of the vehicle at all times
- have tdg #7 training certificate
- carrier company must have RADP program with shipping procedures
- must keep a copy of the shipping documents for 2 years
what are the 4 scenarios that make for a dangerous occurrence?
- vehicle carrying radioactive material is involved in an accident
- non-fixed contamination limit is exceeded
- package has evidence of damage, tampering or leakage
- radioactive material is lost, stolen or no longer in control of carrier
what is done if a dangerous occurrence has occurred?
notify the consignor and CNSC immediately
what would you do if the package seemed damaged upon receipt?
- rso first
- investigate and decide if CNSC needs to be notified immediately, otherwise would just be an incident report that gets filled out for the annual report
what is an accidental release of radioactive material defined as?
- 2 mSv/h on external of package OR vehicle
- 0.1 mSv/h at 1m from package
- 0.1 mSv/h at 2m from vehicle
what must be done accidental release has occurred? who will have responsibility?
- limit the spread
- get name, address and number of anyone who may have been exposed or contaminated
- get expert in RADP to assess situation
- file a report with CNSC within 21 days
carrier or consignor must do these ^
what kind of records are kept for 2 years by those who packages radioactive materials?
- specifications of package design
- type, quantity, and physical form of contents
- document demonstrating requirements for type a packages were met
- qc programs for design, production and servicing/repair of package
- instructions for packaging, transporting, receiving, unpacking and maintaining of package
permission from CNSC is required for you to destroy documentations. t/f
true.
