ANNEX 1
Account Information
[Important! Please send this to us by 31 March 2016 (wcc.sf6@korea.kr)]
Primary Contact Info
 Name ([title] [surname], [given name]):
* If you would like to change the Primary Contact, please contact the KMA Team.
 E-mail:

Secondary Contact Emails:
Please provide at least one additional e-mail contact in the event the primary contact is
unavailable.
 E-mail2:
 E-mail3:
 E-mail4:
………
Intended Measurements: SF6
Blackout Periods [optional]: (Specify time periods in which you are unable to receive
and measure the WCC-SF6 cylinders)
Telephone: (Please include country access code)
Fax [optional]: (Please include country access code)
Shipping Address: (Please include Receiving contact, Telephone number of
receiving contact, and Customs Broker)
Shipping Instructions [optional]: Any additional information useful to ensure proper
shipping.
Additional Notes [optional]
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ANNEX 2
Tentative Guideline for
SF6 Inter-Comparison Experiment (SICE)
SUMMARY
The SF6 Inter-Comparison Experiment (SICE) has been set up in an effort to complete the
experiment in one year. This guideline was modified based on WMO/IAEA Round Robin
Experiment Guidelines (www.esrl.noaa.gov/gmd/ccgg/wmorr). The following list
summarizes key information to be notified.
 Participants in the SICE will be required to 1) provide all required information regarding
logistics and 2) forward the reference cylinders on to the next scheduled participant at
the end of their allotted time even if all measurements have not been completed.
 No registration fee. But participants are responsible for the costs associated with
receiving the cylinders from their country customs office and shipping them on to the
next participant.
 All participants must use wcc.sf6@korea.kr for all relevant SICE information to the
KMA coordinating team.
 The experiment will include X circuits (later notified) of 2 cylinders and each
cylinder will be near ambient range of SF6.
 Participants will manage their account information, report results, cylinders arrival and
shipping information.
 Participants will be notified one week prior to when cylinders are scheduled to arrive at
their location. This is to help participants prepare for their arrival and ensure timely
measurement of the cylinders.
 Participants will be notified as they approach the end of their allotted measurement time.
 Participants are required to document the arrival of the cylinders at their location.
Please note: timely entry of this information is critical as it will ensure that you
receive your full allotment of measurement time.
 Participants are required to document their shipping of the cylinders.
Please note: timely entry of this information is critical as it ensures that the next
participant has adequate time to prepare for the arrival and measurement of the
cylinders.
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 Participants are required to report their results.
 Participants will report one measurement value and relevant values. The reported
uncertainty will be based on measurement reproducibility.
EXPERIMENTAL SETUP
There will be X circuits with two cylinders assigned to each circuit. Participants will
be informed before receiving the cylinders. KMA urge participants to give high priority to
the measurement of the WCC-SF6 cylinders to ensure the experiment is not delayed. The
participants must complete measurements within their allotted time.
The allotted time will be two weeks if measuring SF6 only. At the end of the allotted time,
cylinders must to be forwarded, finished or not, to the next scheduled participant.
Please note: In the event a participant is unable to complete measurements of the
cylinders in the allotted time, they can be required to ship the set on to the next
participant without completion. KMA is going to adhere to this strategy to ensure that
all participants receive their full allotted measurement time. Participants who are
unable to complete their measurements may request (at their own expense) to have
the cylinders returned to their facility after SICE is completed. Values reported or
updated after the closure date are logged but will not be included in the experiment
results.
With the exception of using the provided regulators, please treat the measurement of
the WCC-SF6 cylinders in the same manner as standards in participants’ program.
The WCC-SF6 cylinders are to be measured at your primary measurement facility only. Do
not circulate the cylinders within your network.
RECOMMENDATIONS FOR HANDLING REGULATORS
There is a dedicated regulator for each WCC-SF6 cylinder. These are to be installed,
leak checked, flushed, and conditioned before measurement. For measurement integrity,
keep the regulator attached until the species are measured.
1) Regulator Installation
Install the regulator to the cylinder using reasonable torque to achieve a seal. Install
an unattached quick connector fitting to the outlet (to make the port connector
open). With the regulator delivery pressure knob fully off (counter-clock-wise) and
the regulator delivery valve closed, momentarily open and close the cylinder valve.
If the CGA connection audible leaks, remove, INSPECT BOTH PARTS FOR
DEBRIS, clean with something lint free, and reattach. Repeat. With no audible
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leaking and cylinder valve closed, open delivery valve and increase pressure
delivery to bleed off all pressure.
2) Leak Check
Open and close the tank valve, set the delivery pressure to 20 psi. Close the
regulator delivery valve. Use Snoop or equivalent leak checking liquid on the CGA
connection to assure no minor leaks exist. If they do, add some torque to the CGA
nut until sealed. Once a seal is made, flush.
1. Open the delivery valve and let all pressure bleed off to zero.
2. Close delivery valve and open then close the cylinder valve so all sections
pressurize.
3. Open the delivery valve and let all pressure bleed off to zero.
Repeat steps 2 and 3 four times. Remove the quick connector that allowed the air to bleed
out.
Open and then close the tank valve and let sit fully pressurized for at least 24 hours. If no
great pressure change is evident, the cylinder is ready to measure. If more than a few 100
psi are lost, there may be a small leak somewhere else which needs investigation.
3) Pre-measurement Flush
Before measurement, attach to manifold, open and close the tank valve, allow the
regulator to bleed out to zero pressure, through your delivery system, then with
your flow to the measurement system off, open tank valve and proceed with your
measurement protocol.
4) Cylinder Arrival
Participants are required to report the date on which the WCC-SF6 cylinders arrive
at their laboratory. Timely entry of this information is critical as it will ensure that
you receive your full allotment of measurement time.
The cylinder arrival form includes the following items. All items are required unless
otherwise noted. (Note: Arrival Date - Date on which the WCC-SF6 cylinders arrive at your
facility.)
5) Cylinder Shipping
Participants are required to report when they have shipped the GAW cylinders on
to the next laboratory. Timely entry of this information is critical to ensure that the
next participant has adequate time to prepare for the arrival and measurement of
the GAW cylinders.
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The cylinder shipping form includes the following items. All items are required unless
otherwise noted.
 Cylinder Pressure (psig) prior to any measurements in your lab.
 Shipping Date: Date on which the GAW cylinders are shipped from your facility to the
next participant.
 Notes [optional]
MEASUREMENT RESULT
Participants will report their results. Please send results to the WCC-SF6
(wcc.sf6@korea.kr). Results will include a single measurement value and estimated
uncertainty for each WCC-SF6 cylinder and trace gas. You may update your results as
many times as necessary. However, only the most recent entry or final version should be
sent to WCC-SF6, which is used to compile comparison results once the experiment is
completed. Results submitted after the experiment closure date will not be considered in
the summary of comparison results.
The measurement report includes the following items. All items are required unless
otherwise noted.
 Measurement Date (dd-mm-yyyy): Date on which the measurement is completed.
 Measurement Value:
 Measurement Uncertainty: The estimated uncertainty should be based on
measurement reproducibility. Do not include uncertainties associated with your primary
standards.
 Number of Measurements [optional]: The number of individual measurements
contributing to the reported value.
 Uncertainty Comment [optional]: Additional description of how uncertainty is
estimated.
 Calibration Scale: Provide the calibration scale for the measurements.
 Detection Method: Provide the detection method for the measurements.
 Instrument ID [optional]: Model or serial number of detection instrument.
 Notes [optional]: Additional information deemed useful to other participants or referee.
 References [optional]:
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