Call us: +44 (0) 1908 227722 | Email us here |

VOC emissions data may be invalid

Keith Golding, MD of Quantitech Limited, is urging stack testers and the managers of prescribed industrial processes to check the MCERTS certificates of their Flame Ionisation Detectors (FIDs). He says, “The FID fuel gas for which the certificate is valid is now specified so process operators should ensure, for example, that if the certificate specifies a Hydrogen/Helium mix, any compliance monitoring must also use this mixture or results will be invalid.

“Users of the Sick Bernath 3006 need not be concerned because the MCERTS field test was conducted with both fuel gas options – Hydrogen and Hydrogen / Helium  mix. However, Hydrogen is by far the more preferable option.” The fuel gas for FIDs is an important issue because H2/He gas is at least three times the cost of H2 gas, so one might assume that all FIDs would run on Hydrogen. However, some FID manufacturers are unable to achieve the MCERTS performance requirements whilst running on Hydrogen and have to resort to the more expensive H2/He mixture.

This situation is exacerbated by the high fuel gas flow rates (up to 180cc/min) that are required by some FIDs. In contrast, the market leading Sick Bernath 3006 portable FID has an MCERTS certificate to confirm high performance levels using Hydrogen gas at very low flow rates (20cc/min).

Explaining the significance of the fuel gas, Keith Golding says, “The use of this expensive gas mixture at high flow rates means that fuel costs can be an astonishing 27 times greater. However, the cost of the fuel gas is not the only significant issue; high flow rates necessitate a large supply of gas which can create logistical problems and health and safety issues when transporting large bottles in the field.

“Typically the 3006 is able to operate for a full working week from one small 1 litre bottle of Hydrogen, so the MCERTS approved ability of this instrument to run on Hydrogen at very low flow rates is a major advantage to process operators and stack testers.”

The MCERTS certificate for the Sick Model 3006 is available at http://www.siraenvironmental.com/UserDocs/MCERTS/MC04003604.pdf
Further information is available at www.quantitech.co.uk
 

i

For more information

Telephone us on on +44 (0)1908 227722

Quantitech Ltd
Unit 3, Old Wolverton Road
Milton Keynes
England
MK12 5NP

Quantitech is a subsidiary of Gasmet Technologies Oy

Tel: +44 (0)1908 227722
Fax: +44 (0)1908 227733
Email: info@quantitech.co.uk

Privacy Policy
Careers
Site Map
© 2017 Copyright

Safe Contractor ISO 9001 Registered