{"id":82,"count":0,"description":"Heating and drying ovens in the laboratory\nHeating or drying ovens are used for a variety of applications.\n\n \tIn pharmaceutical industry, environmental technology, the food industry, agricultural industry and forestry for determining dry content and humidity content (drying oven method)\n \tIn electronics for drying components, degassing epoxy resins, and for burn-in testing\n \tIn research for sample preparation\n \tAgeing or tempering of plastics, metals\n \tStability testing in the food industry\n \tHeated storage of building materials, plastics, components\n \tHeating of surgical cloths, blankets, rinsing solutions, infusion solutions etc. in clinics and hospitals\n\nHow a drying oven works\nThe chamber load is exposed to defined temperatures at atmospheric pressure in the interior of a drying oven or heating oven. Thermal energy is transferred to the chamber load by convection and radiation.\n\nHeating a Memmert heating oven is something very special. It takes place via a unique, full-surface heating system (all-round heating) behind the interior walls. In contrast to other heating systems such as ring heaters or heating coils, this ensures excellent heat transfer as well as optimum temperature distribution and uniformity even when fully loaded thanks to the direct contact between the heating ribs and the sliding shelf.\n\nDrying takes place faster the higher the temperature, and the drier the air within the chamber. A drying oven or heating oven is usually available either with natural convection or forced convection. In the version with forced convection, heat transfer (convection) and air exchange are accelerated via a switchable fan, thus promoting homogenous temperature distribution in the interior. The\u00a0vacuum drying oven VO\u00a0is particularly recommended for the gentle drying of powders, granulates or electronic components. The boiling point is reduced by the vacuum in the vacuum drying oven, which means that the chamber load is heated or dried at lower temperatures.\nThe drying oven method\nThe moisture content of a material\/sample is measured using the drying oven method. It is a measurement method for gravimetric analysis, or more precisely thermogravimetric analysis, in which the content of liquid and volatile substances is determined by mass. A precisely weighed sample is exposed for a certain drying time at a certain temperature. The drying loss is then determined by weighing it again and the moisture content is obtained as a percentage. Even if a large number of rapid tests are available, for example for determining the humidity content of fuels, grain or foodstuffs, the drying oven method is the prescribed test method or the approved reference method under many standards. In some tests (e.g. paper and cardboard) the samples are conditioned in a standard climate before the thermogravimetric test.\nSpecial Memmert drying and heating ovens\n\n \tThe cleanroom oven: With no particle filter, the\u00a0cleanroom-compatible drying oven UF750plus\u00a0with circulating air cleanroom class 7 according to DIN EN ISO 14644-1, without circulating air cleanroom class 5.\n \tSteriliser: The Memmert\u00a0hot air steriliser S\u00a0is classified as a Class IIb medical device for the purpose of "sterilisation of medical materials using dry heat by hot air at atmospheric pressure". The SetpointWAIT function in the Memmert Hot Air Steriliser S ensures that the program continuation, i.e. the sterilisation of instruments and laboratory vessels, only takes place after the target temperature has been reached.\n \tUniversal oven as a medical device: The\u00a0heating oven UNm or UNmplus\u00a0is classified as a Class I medical device for heating and keeping fango, silicate and APS packs warm in physiotherapy.\n \tBlanket warmer: The Memmert\u00a0heating oven IFbw\u00a0is a Class I medical device in accordance with EU Directive 93\/42\/EEC. The heating oven is suitable for heating non-sterile cloths and blankets according to its purpose.\n \tDishwasher heating oven: The\u00a0heating oven UFP800DW\u00a0is specially designed for standard-compliant pre-drying and drying of soiled dishes in an air circulation heating oven.\n \tParaffin heating oven: The\u00a0heating oven UNpa\u00a0is specially designed for absolutely reliable sample preparation.\n \tCooled vacuum oven: The\u00a0cooled vacuum drying oven VOcool\u00a0operates in the temperature range from +5 to +90 \u00b0C.\n","link":"https:\/\/www.memmert.be\/en\/product-category\/drying-and-heating-ovens\/","name":"Drying and heating ovens","slug":"drying-and-heating-ovens","taxonomy":"product_cat","parent":0,"meta":[],"menu_order":0,"acf":[],"_links":{"self":[{"href":"https:\/\/www.memmert.be\/en\/wp-json\/wp\/v2\/product_cat\/82","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.memmert.be\/en\/wp-json\/wp\/v2\/product_cat"}],"about":[{"href":"https:\/\/www.memmert.be\/en\/wp-json\/wp\/v2\/taxonomies\/product_cat"}],"wp:post_type":[{"href":"https:\/\/www.memmert.be\/en\/wp-json\/wp\/v2\/product?product_cat=82"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}