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ÖNORM EN ISO 6978-1
Natural gas - Determination of mercury - Part 1: Sampling of mercury by chemisorption on iodine (ISO 6978-1:2003 )
Translate name
STANDARD published on 1.10.2005
The information about the standard:
Designation standards: ÖNORM EN ISO 6978-1
Publication date standards: 1.10.2005
SKU: NS-778984
The number of pages: 22
Approximate weight : 66 g (0.15 lbs)
Country: Austrian technische Norm
Category: Technical standards ÖNORM
The category - similar standards:
Annotation of standard text ÖNORM EN ISO 6978-1 :
This part of ISO 6978 specifies a method for the determination of total mercury content in natural gas using a sampling method at pressures up to 40 MPa by chemisorption on iodine-impregnated silica gel. This sampling method is suitable for the determination of mercury contents within the range of 0,1 ug/m3 to 5 000 ug/m3 in natural gas. This method is applicable to sampled gas volumes containing less than 20 mg hydrogen sulfide (absolute content) and less than a total liquid hydrocarbon condensate of 10 g/m3 under the sampling conditions. The collected mercury is determined by measuring the absorbance or fluorescence of mercury vapour at 253,7 nm.
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