The finished product of the geothermal floor has actually had a taste of steel. There must be four cycles of rigorous testing during its production. That is, the floor is boiled in hot water at 100 ° C for 4 hours → baked in an oven at 60 ° C for 20 hours → boiled in hot water at 100 ° C for 3 hours → frozen at minus 20 ° C for 2 hours. Round trip four times to ensure long-term high temperature resistance, no cracking, no degumming, moisture resistance, no deformation, no anti-warping. The last point is green. Health and safety are the fundamental requirements of geothermal flooring. Products should comply with international environmental standards (European environmental protection standards are E1; Japanese environmental protection standards are F1; China's formaldehyde emission content is less than 0.12mg/m4 equivalent to international standards). Because the special geothermal floor is more expensive, the average wage earner hopes to find a cheap and affordable product that is both affordable and compliant. Here are a few alternatives. There are also several types of wood flooring suitable for underfloor heating systems: first, 7 to 8 mm thick laminate flooring with 2 to 3 mm foam cushions; second, 8 to 12 mm thick three or more layers Laminate flooring, with 2 to 3 mm foam cushion; third, 8 mm thick mosaic parquet or mosaic parquet, with 2 to 3 mm foam cushion; fourth, 10 to 12 mm thick Solid wood flat floor; fifth, solid wood tongue and groove floor with length, width and height less than 600 × 60×16 mm, the best is 200×40×10 mm floor, which is square or herringbone during construction. Make it thermally deformed evenly. In short, the choice of geothermal heating wood floor should have the following principles: the size of the wooden floor should be stable, the heat stability should be good, and the water content should be low, so that the floor will not be easily deformed after being heated; to facilitate heat exchange and conduction, the cushion material is not suitable. Too thick; the floor size should be thin and not thick, should be narrow and not wide, in order to facilitate the requirements of deformation resistance and heat conduction.
Sterile Petri Dishes from YongYue medical carries a complete line of contact plates, sterile, square (with a grid) and absorbent pad Petri dishes, cell spreaders and spatulas. Please contact us if you need additional product specifications. Two of our most popular lab dish products are standard petri dish and 3 compartment petri plate.
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Sterile Agar Petri Dish
YongYue® petri dishes are offered in a variety of shapes and sizes for your everyday research needs. YongYue® manufactures optically clear plastic petri dish which are precision-molded from biomedical grade polystyrene for Cell Culture. Dishes are packed in heavy-wall polyethylene sleeves to ensure product integrity. YongYue® petri dishes have many applications including cell culture, growing bacteria and growing yeast.
Clear plastic disposable petri dishes of standard depth (15mm). Supplied in sterile packs. Will deform on autoclaving. Triple Vented. Also suitable for the temporary housing of small invertebrates during collection, or for distributing small chemical samples in class.
Diameter: 90mm
Depth: 15mm
Pack of 20
Geothermal floor related introduction