The revised ASTM D6826-23 Standard Specification for Sprayed Slurries, Foams, and Indigenous Materials Used As Alternative Daily Cover for Municipal Solid Waste Landfills was published last week. Daily covers are an essential issue in managing odor release in landfills. This specification has been around for around 15 years, and this is the fifth revision of the text. 

   This specification defines procedures for determining the performance of certain landfill daily cover materials such as sprayed slurries, foams, and other materials generally described as an alternative daily cover (ADC) for municipal solid waste landfills. This standard specification does not apply to other types of landfills. Also, the text does not apply to geosynthetics used as ADC such as this one.

   This year again, Italian company InterCinD has opened the registration for the annual Proficiency Test for Olfactometry based on the new EN 13725:2022. Any European olfactometric laboratory is invited to participate in this edition to confirm compliance with the performance criteria.

   Registrations for this year’s Proficiency Test for Olfactometry based on the new EN 13725:2022, organized by InterCinD, an independent business unit of the Italian company Lab Service Analytica Srl, are now open until the 4th of August 2023.

   Dr Heinrich Mannebeck, the German pioneer of olfactometry, died at 86 on 29 Dec. 2022. As an agriculture scientist, he started in 1976 with a simple olfactometric device to take ambient indoor and outdoor samples of clearly noticeable concentrations. Then, 20 years later, he founded the company Ecoma with his children Dorothee and Dietmar Mannebeck. This company was initially based in Kiel, but 2 years later was moved to  a detached house between farms and apple trees in the little town of Honigsee.

  In the 1970s, the urban exodus began in Germany. Many moved to the countryside with their families. At first, they still found the smell of manure, animals and stables pleasant, but at some point, it became annoying. More and more complaints came across the desk of Dr Heinrich Mannebeck, a member of staff at the Institute of Agricultural Process Engineering at Christian Albrechts University in Kiel. But there were no methods of measuring odour at that time.

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