EN 13211 - Mercury Flashcards
Name the 2 normative references in EN 13211
EN 13211 - Mercury
EN 1483 - water quality
EN 13284-1 - total particulate matter
EN 13211 - Mercury
What is the concentration range for EN 13211?
EN 13211 - Mercury
0.001 to 0.5 mg/m³
EN 13211 - Mercury
What is the acceptable concentration of mercury present in the last impinger?
(2 things)
EN 13211 - Mercury
< 5% of the total in all the impingers OR < 2 ug/m³
EN 13211 - Mercury
Name the 3 conditions for when non-isokinetic sampling can be employed?
EN 13211 - Mercury
- If the sum of the mercury in the dust phase is < 1 µg/m³ &
- No droplets are present in the gas stream &
- The highest to lowest velocity ratio is < 1.2
EN 13211 - Mercury
What is the maximum permissible mercury content of the filter?
EN 13211 - Mercury
< 0.1 µg/m³ (Quartz Fibre)
EN 13211 - Mercury
What is permissible length of an unheated connection?
EN 13211 - Mercury
< 1m
EN 13211 - Mercury
Which 2 impinger solutions are permitted?
EN 13211 - Mercury
- Potassium permanaganate in sulphuric acid
- Potassium dichromate in nitric acid
EN 13211 - Mercury
What temperature should the samples be stored at?
EN 13211 - Mercury
Standard requires < 6°, RPS allows < 25°C
EN 13211 - Mercury
How should the filters be digested post-test?
EN 13211 - Mercury
In a closed PTFE vessel at elevated temperature and pressure using nitric acid and hydrofluoric acid
EN 13211 - Mercury
What 3 conditions must be satisifed to enable single point sampling?
EN 13211 - Mercury
- Standard deviation in velocities of < 10% of the mean
- Variation in temperature of < 10°C
- Standard deviation in oxygen concentration of < 10% of the mean
EN 13211 - Mercury
What must the probe temperature be set to if titanium is present in the sampling train?
EN 13211 - Mercury
> 180°C
EN 13211 - Mercury
What typical flow rate is suggested in the Standard?
EN 13211 - Mercury
1.0 to 2.0 m³/hr (16 to 33 l/min)
EN 13211 - Mercury
What is the allowable leak?
EN 13211 - Mercury
< 2% of expected sample flow
EN 13211 - Mercury
What is the valid isokinetic range?
EN 13211 - Mercury
95 to 115%
EN 13211 - Mercury
What is the allowable absorption efficiency?
EN 13211 - Mercury
> 95%. Efficiency not required if the emissions are ≤ 30% of the daily ELV
EN 13211 - Mercury
