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Hok Tsui
-CO-
| Observation |
| Category |
: |
Air sampling observation |
| Situation |
: |
|
| Time zone |
: |
Local time +8 |
| Sampling |
| Sampling height |
: |
|
| Description |
: |
continuous |
| Sampling and analysis frequency |
: |
Hourly |
| Sampling environment |
: |
|
| Description for sampling analysis |
: |
Real time point analyzer. The sampling line is 1/4" teflon tube. The sampling inlet is mounted on a scaffolding placed at 2m above roof top. |
| Instrument and Analysis |
| Measurement method |
: |
|
| Current status and history of instrument |
: |
NDIR Gas filter correlation |
| Description of instrument |
: |
TECO
Teco 48S |
| Calibration |
| Current scale employed in the measurement |
: |
|
| Measurement calibration |
: |
Zeroed once everyhour using pd catalyst. Span checked once every 4 hours using dynamic dilution of Scott Marrin standard gas. Span gas concentration vary from 500 ppb to 1000 ppb. |
| Scale and calibration(treasability) |
: |
0 to 2000 ppb |
| Data Processing |
| Measurement unit |
: |
ppb |
| Data processing |
: |
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| Processing for averaging |
: |
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| Data flag |
: |
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| Data remarks |
: |
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| Other Information |
| Scientific aim |
: |
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| Reference |
: |
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| submitted by The Hong Kong Polytechnic University |
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