SKU: 31937932468

Sartorius 14075--50------N Nutrient Pad with Filter Cetrimide NPS & gridded MF, 0.45 µm, ⌀50 mm, 100/pk

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Description

Sartorius 14075--50------N Nutrient Pad with Filter Cetrimide NPS & gridded MF, 0.45 µm, ⌀50 mm, 100/pkSartorius Nutrient Pad Sets have been used successfully in the membrane filter method for more than 30 years. Practical and easy to handle, Nutrient Pads reduce labor and simplify many microbiological testing procedures. Microorganisms require the appropriate culture media for optimal growth. Nutrient Pad Sets are sterile, dehydrated culture media. Once they are moistened with 3. 0 3. 5 ml of sterile and demineralized (or pure ) water they are ready

Sartorius Nutrient Pad Sets have been used successfully in the membrane filter method for more than 30 years. Practical and easy to handle, Nutrient Pads reduce labor and simplify many microbiological testing procedures. Microorganisms require the appropriate culture media for optimal growth. Nutrient Pad Sets are sterile, dehydrated culture media. Once they are moistened with 3.0 – 3.5 ml of sterile and demineralized (or pure ) water they are ready-to-use immediately. The level of moisture is optimal when an excess ring of water surrounding the NPS is visible.
The standard NPS box contains 100 sterile Nutrient Pads, each of which is individually inserted in a petri dish and sterilized. Ten each of these petri dishes are sealed in an aluminum bag. This special packaging in bags protects the sensitive formula constituents of the Nutrient Pad during transport and storage from fluctuations in humidity and temperature. As a result, it guarantees the high quality of our NPS throughout their entire shelf life up to 24 months. This makes the Sartorius Nutrient Pads Sets unique: No other ready-to-use culture media around the globe assures such consistently high quality and reproducible results up to 24 months.
Compliance with International Standards: Currently, Sartorius offers more than 30 different Nutrient Pad Set types to meet the diverse requirements of microbiological analysis. Aside from the European drinking water directive, they comply with other international regulations and recommendations: international pharmacopoeias, DIN and ISO standards, the American Standards for Water and Foods, mineral water regulations, brewery guidelines, such as MEBAC or EBC, and recommendations of the food industry, such as LMBG, NCA and ICUMSA, etc.
Includes Membrane Filters: All Nutrient Pad Set types are supplied with the appropriate membrane filters, which are also individually sterile packaged. Nutrient Pad Sets are also available with Microsart® e.motion Membrane Filters which are specially designed for the Microsart® e.motion Dispenser and can be conveniently inserted. The membrane filters are then automatically removed from their sterile package. All membrane filters, tailored to meet the special requirements of microbial detection, are available with 47 or 50 mm diameter.
Trouble-free storage up to 24 month
Compliance with international standards and references
Validation guide available
Highly versatile -multiple applications
Economical – no time consuming and labor intensive preparation of nutrient media (sterilization, cleaning etc.)
Easy handling – no need for comprehensive microbiological testing equipment

Shipping Notes
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Exchange/Return Notes
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  • To process your return/exchange, please contact us at [email protected]
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SKU: 31937932468

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4.7 ★★★★★
Based on 613 reviews
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A
Verified Purchase
Amzn Buyer
Alexandria, US
★★★★★ 5
Chef’s Kiss! Quality Product at an Amazing Price!
Size: Large
The large is a perfect size for my 66# and 110#. If you have a smaller dog, consider a medium. Fill them with peanut butter, 1/2 banana each, wet kibble (paste) or pumpkin puree, and put into the freezer. Not as stiff as their Kongs. Both dogs are strong chewers and these have held up. Clean the inside with a baby bottle brush.
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Reviewed in the United States on February 25, 2026
G
Verified Purchase
G. Rose
Alexandria, US
★★★★★ 5
Stands up to puppy teeth!
Size: Medium, Size: Medium
I was fostering 2 7-week old puppies that chewed on EVERYTHING! I got these AND a couple of the Kong brand chew toys. These have stood up much better to the puppy teeth than the Kongs did. I throw them in the dishwasher (not every time) and I also have a small straw brush to clean them. They are easy to fill, and once they are done with the treats (PB butter, yogurt, pumpkin, apple sauce etc.), they continue to chew on these. When you throw them, they have a fun bonce. I ended up foster failing one of the puppies, but we still use these often. They still look brand new and I have had them for about 6 months. I got the medium, my dog is about 13 lbs now and the size is perfect for her. The material is strong and I don't hear a peep when she is chewing on it. I would 100% recommend these!
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Reviewed in the United States on May 24, 2026
D
Verified Purchase
Denielle
Massapequa, US
★★★★★ 5
Great toys. Bouncy, chewable long term.
Size: Medium, Size: Medium
We got these for our puppy and to see how they would compare to kongs. Our dogs love these more than the kongs and so far, with two chewy dogs, they have not destroyed these yet. They are very bouncy and provide a lot of chasing fun. We will be buying more and we recommend these.
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Reviewed in the United States on February 28, 2026
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Verified Purchase
Lynn
Massapequa, US
★★★★★ 4
Durable
Size: Large
Excellent material. I wish the hole was a little smaller to keep the treats in better. Also wish they were a little larger and/or oddly shaped so as not to fit under the sofa. Still totally worth it.
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Reviewed in the United States on January 10, 2025
M
Verified Purchase
M Mon
Fort Morgan, US
★★★★★ 5
Subtle, great dog toy design!
Size: Large
These things are amazing. Stuff them with peanut butter and treats and freeze them of course, but football spike them across the yard to drive your overly hyped dog nuts! And the hole allows you to safely pry it out of a tug battle , just a great design! And it can bobble across a small living space without getting lost like a ball would. Love it!
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Reviewed in the United States on April 20, 2026

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