We're pleased to inform you about the recent revision to the ASTM E3313 standard, which addresses the communication of assessor and panel performance in sensory evaluation. This update, reflected in the latest version ASTM E3313-24, brings important changes focused on improving clarity and usability.

   The revisions to ASTM E3313-24 aim to enhance the clarity of guidance regarding the communication of assessor and panel performance. By refining language and simplifying concepts, the standard becomes more accessible and actionable for practitioners.

   UNE, the Spanish standardisation body, published the final document last week, approving the new UNE 77270 Standard Building collaborative odour maps through citizen science. So from now on, Spain has a new Standard, the first one based on citizen science, this time for odour mapping, which sets a precedent at international level.

   The new Standard is available on the AENOR website at a price of 106 € for all those entities, companies or individuals interested in its purchase (in Spanish).

   Italy has recently introduced the UNI/TR 11917:2023 standard, marking a significant milestone in waste management aimed at addressing various environmental concerns associated with biogas collection in landfills. This new Italian standard, published in July, includes specific provisions focusing on odorous emissions.

   The initial discomfort experienced in the vicinity of a landfill primarily arises from the emission of odours due to specific olfactory microcomponents present in biogas. These components encompass esters, sulphur compounds (such as hydrogen sulphide), alkylbenzenes, limonene, mercaptans, putrescine, thiophenols, thioalcohols, thioacids, polyamines, and various hydrocarbons that are released into the atmosphere. The uncollected flow of biogas disperses these olfactorily perceptible microcomponents into the air, and meteorological factors carry them across the surrounding area.

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