YZ Odorizer Flashcards
What type of odorants can be used in Eversource gas systems?
Eversource approved odorants
Are odorants flammable?
YES
What is the maximum odorant fill capacity for odorant tanks?
85-90%
What is the preferred method of odorant transport?
Bulk tankers
If odorant is transported using cylinders what standards must be use?
Eversource welding and cutting section in the safety manual?
Who must be notified prior to handling any odorant or performing an odorant maintenance?
Gas Control
I&R Supervisor
Manager
Local Fire and Police
What must be worn when handling odorants?
Plastic gloves and glasses
What two methods are used to determine if odorant in present in the atmosphere?
- A sniff test
- An odorometer reading
Odorant levels are measured using a reading called what?
RDL
(Readily Detectible Level)
What are the target RDL’s for MA and CT
MA - 0.15%
CT - 0.1 - 0.9%
What is the odorant injection rate measured in ?
Pounds of Odorant per Million Cubic Feet of Gas
LBS / MMCF
Seasonal temperature changes may result in changes to the amount of odorant injected in the system true or false ?
TRUE
Who must be notified prior to working on or maintaining and odorizer ?
Gas Control
An odorizer must be placed on ______ prior to commencing work or troubleshooting.
Stand-by
Injection rate remains _______ to the proportional volume of gas in a system.
Constant
________ are conducted at the extremities of a gas system.
Sniff tests / odometer readings
Can approved odorants be mixed and interchanged?
YES
Any alarm or abnormal conditions are reported to I&R supervisors immediately, true or false?
TRUE
Full face respirator masks must have what type of cartridge ?
Organic Vapor
To test leaks in odorization equipment, use either a ________ or a ________.
Soapy solution / CGI
Leaks found in odorization equipment must be repaired asap, true or false?
TRUE
At the extremities of an odorization system, target RDL levels must be what for CT and MA?
1/5th ( . 1% - . 9% ) — CT
0.15% — MA
Seasonal temp changes may result in changes to the flow rate requiring odorant injection rates to change, true or false?
TRUE
Over odorization can cause what?
False leak complaints
Any condition not corrected during inspection must be corrected within ______ month(s) of the inspection, provided the conditions do not result in low levels or odorization.
1 month / 30 days
Odorizers shall not be turned off or left in standby without prior approval from _____ and ________
I&R supervisor / Gas Control
All odorizers shall be inspected at a minimum ________ day(s)
Monthly / 30 days
Alarms and other abnormal conditions shall be reported to ________
I&R Supervisor
What is the injection rate for CT and MA?
CT - .35 lb / mmcf
MA - .5 lb / mmcf
The _____ verifies the amount of odorant injected into the gas system.
Verometer
