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9.2 Matrix Definitions:
Non- Invasive:
Activities in this category do not involve direct physical contact or
manual handling of products (forklift, bottle cart, pallet jacks, etc. are
used). Minimal exposure is possible, provided the truck and
containers are free from leaks and external contamination.
Type 1:
Maintenance is non-invasive work that does not involve opening
primary containment or exposure to uncontained chemical.
Type 2:
Maintenance is invasive work that involves opening the primary
containment and may involve controlled or manageable or exposure
to small quantities (<200 ppm) of chemical (e.g. Source Change
operation).
Type 3:
Maintenance is invasive work that involves opening primary
containment and significant risk of exposure to chemical.
Buddy System:
Two people wearing the same level of PPE and trained in basic
chemical/gas safe handling techniques.
Person One:
Completes all steps of a Work Instruction or process (container
changes, maintenance, etc.).
Person Two:
Acts as Safety Observer and backup in the event of a mishap.
Remains a safe distance from the work area when Person One is
e.g., opening primary containment. Person Two may assist Person
One during support activities (lift assists, positioning, procedure
checking, etc.), but must leave the hazardous area when primary
containment is opened. In the event of a safety incident, person two
should activate the emergency response system and if possible,
depress the emergency stop button for the equipment.
9.3
Secondary Containment
When transporting chemical containers within the site complex, secondary containment
must be used. The secondary container must be fabricated from a material that is
compatible with the chemical in use and does not cause a chemical reaction if exposure
should occur. The qualified materials for secondary containment used for POCl
3
are:
