3m Petrifilm AC - Aerobic Count Plates - 2 x packs/50each/100 total plates, US $60.00 – Picture 0

3m Petrifilm AC - Aerobic Count Plates - 2 x packs/50each/100 total plates, US $60.00 – Picture 1

3m Petrifilm Ac - Aerobic Count Plates - 2 X Packs/50each/100 Total Plates

US $60.00

San Diego, California, United States
Jan 30th

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3M Petrifilm AC - Aerobic Count Plates 2 packs of 50 each - 100 total plates May 2015 Expiry 3M Petrifilm Aerobic Count Plate (2packs/50ea/100total) Features The Petrifilm Aerobic Count (AC) plate is a ready-made culture medium system that contains Standard Methods nutrients, a cold-water-soluble gelling agent, and an indicator that facilitates colony enumeration. Petrifilm AC plates are used for the enumeration of aerobic bacteria. Image 1 Aerobic Bacteria Count = 152 A red indicator dye in the plate colors the colonies. Count all red colonies regardless of their size or color intensity. Image 2 Count = 0 It is easy to interpret the Petrifilm AC plate. Figure 2 shows a Petrifilm AC plate without colonies. Image 3 Count = 16 Figure 3 shows a Petrifilm AC plate with a few bacterial colonies. Image 4 Count = 143 The preferable counting range on a Petrifilm AC plate is 25-250 colonies. See figure 4. Image 5 Estimated Count = 560 When colonies number more than 250, as in figure 5, estimate the count. Determine the average number of colonies in one square (1 cm?) and multiply it by 20 to obtain the total count per plate. The inoculated area on a Petrifilm AC plate is approximately 20 cm?. Image 6 Count = TNTC (Estimated count = 10?) Figure 6 shows a Petrifilm AC plate with colonies that are too numerous to count (TNTC). Image 7 Count = TNTC (Estimated count = 10) With very high counts, the entire growth area may turn pink, as shown in figure 7. You might observe individual colonies only at the edge of the growth area. Record this as a TNTC result. Image 8 Count = TNTC (Estimated count = 103?) Occasionally, distribution of colonies appears uneven, as shown in figure 8. This is also an indication of a TNTC result. Image 9 Count = TNTC (Estimated count = 10) The colonies on the Petrifilm AC plate in figure 9 appear countable at first glance. However, when you look closely at the edge of the growth area, you can see a high concentration of colonies. Record this as a TNTC result. Image 10 Estimated Count = 160 A few species of bacteria liquify the gel in the Petrifilm AC plate, as shown in figure 10. When this occurs, determine the average count in a few unaffected squares and then multiply it by 20 to obtain the estimated count. Do not count red spots within the liquified area. Image 11 Count = 83 Because colonies on Petrifilm AC plates are red, you can distinguish them from opaque, irregularly shaped food particles (see circles 1 and 2). Reminders for Use For detailed CAUTIONS, DISCLAIMER OF WARRANTIES / LIMITED REMEDY, LIMITATION OF 3M LIABILITY, STORAGE AND DISPOSAL information, and INSTRUCTIONS FOR USE see Product's package insert. Storage 1. Store unopened packages at

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New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. ...

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