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6650
Appendix T1 Minimum
Mitigation Requirements for Unbound Engineered
Nanoparticles |
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This appendix defines Jefferson Lab’s minimum mitigations requirements for engineered nanoparticles (NP). These minimum requirements are consistent with the requirements of 10 CFR 851 and Department of Energy (DOE) Order O456.1A.
This appendix addresses minimum hazard mitigations when working with engineered NPs. The process steps for this procedure are performed in coordination with ES&H Manual Chapter 6650 Unbound Engineered Nanoparticle Program.
NOTE: Management authority may be delegated at the discretion of the responsible manager.
3.1 Engineered NP Worker
·
Contact Industrial Hygiene for appropriate area
and container labeling and signage requirements.
· Contact Industrial Hygiene prior to removing any NP, including waste, from a designated area.
· Annually survey and certify exhaust ventilation and vacuum cleaners used in designated NP areas.
· Approve personal protective equipment (PPE) for NP handling.
· Coordinate NP waste disposal.
·
Post signs on all areas designated as NP work areas.
Below are minimum requirements that must be incorporated into NP activities.
Controls are evaluated using a risk-based graded approach
that takes into consideration available toxicological and environmental data. The order of preference (most
preferred to least preferred) for handling nanomaterial is:
1) Solid materials with imbedded
nanostructures
2) Solid materials with
nanostructures fixed to the material’s surface
3) NP suspended in liquids
4) Dry, unbound engineered NP, NP
agglomerates, or NP aggregates
Work
that could generate airborne unbound engineered NP is conducted in ventilated
enclosures (such as a ventilation hood, glove box, or glove bag) designed to
protect workers from airborne contaminants. Ventilation systems for these
enclosures are protected with high efficiency
particulate air filtering system (HEPA) (or Ultra Low Purifying Air, ULPA)
filtration systems to “scrub” air prior to being exhausted outdoors. See ES&H Manual Chapter
6630 Appendix T1 Engineering Controls – Local and Portable Exhaust Systems
for set-up and inspection requirements.
·
If
the activity cannot be enclosed alternative controls such as local exhaust
ventilation systems may be used to capture fugitive NP at the source.
·
Ventilation
systems that can produce “blow back” such as a laminar flow hood are not used
with NP.
·
Enclosed
systems under positive pressure are used in a negative pressure enclosure and
exhausted prior to opening.
·
Controls
are in place to exclude NP from any exhausted air entering the work space;
exhausted air is not re-circulated within the laboratory, even if
HEPA-filtered.
·
Exhaust
ventilation systems are annually surveyed (e.g., face velocity/capture
velocity) to control worker exposure, and
·
HEPA
filters in exhaust systems and vacuum cleaners in NP work areas are annually
certified to verify filter efficiency.
Contact
Industrial Hygiene prior to storage of any NP for guidance as to the proper
requirements based on material composition. Minimum requirements include:
·
Affixed
labels to all containers (see Section 4.4 Posting
and Labeling Requirements)
·
Keep
containers closed at all times while in storage
·
Store
in designated areas
4.4
Posting and Labeling Requirements
4.4.1
Designated
engineered NP areas (e.g., laboratory door,
glove box) are posted with the following signage:
4.4.2
All engineered NP storage
containers are labeled:
4.5
Personal Protective
Equipment (PPE)
PPE
is selected per specific NP. PPE requirements are documented in applicable Operational Safety Procedure or Task Hazard Analysis for a specific NP activity.
NPs are managed as a hazardous waste in accordance with ES&H Manual Chapter 8061 Hazardous Waste Management. NPs are NOT released to the sanitary sewer or disposed of in regular trash bins.
All waste (including wipes, filters, gloves, etc.) that has been in direct contacted with NPs is wetted, bagged, and placed in a designated Satellite Accumulation Area (SAA) or contact Industrial Hygiene for immediate removal.
Surfaces where NPs are used are cleaned at the end
of each work-shift using approved HEPA vacuum and wet-wiping.
·
A
HEPA vacuum (approved by Industrial Hygiene) is required in work areas where NPs
are used.
·
Used wipes are disposed of in designated SAA.
Jefferson Lab treats engineered NP as suspect carcinogens and as such are considered hazardous material. Minimum requirements for off-site shipment are provided within ES&H Manual Chapter 6660 Appendix T1 Transport of Hazardous Material. Additional requirements include:
4.8.1
Documentation and Notifications
·
Available descriptions of the material (e.g., Safety Data
Sheets (SDSs)). Researchers prepare a document that describes properties
that are reasonably likely to be exhibited by samples.
·
A notification to receiving facility of the incoming shipment.
4.8.2
Transport by Personal Vehicle
· Driver must have a valid driver’s license
· Vehicle is in good mechanical condition with valid state inspection sticker
· Vehicle has minimum liability insurance required by the state
· Driver obeys all traffic rules
NOTE: Only shipments of NP classified as “other materials” NOT recognized as DOT hazardous materials, are transported by personnel vehicle. |
5.0
Revision Summary
Revision 1.0 – 08/17/16 –
Periodic Review; formerly
titled ‘Minimum Mitigation Requirements for Engineered Nanoparticles’; updated
per DOE Order 456.1A
Periodic Review – 06/28/13 – Currently no nanoparticle
activity; no changes per TPOC
Revision 0.0 – 04/17/09
– Initial content
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ISSUING
AUTHORITY |
TECHNICAL
POINT-OF-CONTACT |
APPROVAL
DATE |
REVIEW DATE |
REV. |
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ES&H Division |
08/17/16 |
08/17/21 |
1.0 |
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