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INSIDE THE LAB
SKS Science Newsletter


Whirl-Pak ® Sample Bags


May 2015

In many industries such as biology, earth science, food science, and forensics, taking and storing samples can be a prevalent part of daily work in the lab. Products like Nasco Whirl-Pak® sterile sample bags are designed to maintain the original chemical composition of liquid, semi-liquid and solid samples to ensure that they are not compromised and can be safely stored. Nasco Whirl-Pak® sterile bags are made of polyethylene plastic and vary in thickness. Whirl-Pak® bags are sterilized by ethylene oxide gas after manufacturing. Each sample bag features a wire tab closure that creates a leak proof bag once folded over tightly three times. While these polyethylene bags can be frozen at any temperature it is not advised to use them at temperatures above 180°F/82°C. SKS Science carries these disposable bags in a variety of sizes and styles.


Standard Bags

Standard Bags

Standard Bags

The Whirl-Pak® standard bags are available in sizes 2, 4, 7, 13 and 24 ounces. The 2 and 4 ounce sterile sampling bags are 2.25 milliliters thick while the 7 and 13 ounce bags are 3 milliliters thick and the 24 ounce bag is 4 milliliters thick. The thickness of the polyethylene bag increases with size to safeguard heavier samples. A felt tip marker can be used to label these clear bags. Standard sample bags can be used in legal proceedings; when it is important to see the sample clearly without removing it from the bag. Once the bag is securely closed capacity is measured in fluid ounces. Click below to purchase these Nasco sample bags.


Write-On Bags

Write-On Bags

Write-On Bags

SKS Science has Whirl-Pak® write-on bags in a variety of sizes. 1, 2 and 4 ounce bags are 2.25 milliliters thick while the 18 oz sterile bags are 2.5 milliliters thick and the 55 oz bags are 4 milliliters thick. The smear proof writing area can easily be written on with pen, pencil or marker; making these LDPE bags perfect for testing multiple samples at once. Capacity is measured in fluid ounces when the bag is properly closed. Click below to purchase these write-on sample bags.


Stand-Up Bags

Stand-Up Bags

Stand-Up Bags

SKS Science stocks a 4 ounce Whirl-Pak® stand-up bag. This LDPE bag is 2.5 milliliters thick and has a white smear proof writing area for conveniently labeling with pen, pencil or marker. When filled the gusseted bottom flattens out, allowing the bag to stand on its own. Stand-up bags are ideal for taking and testing liquid samples. Capacity is measured in fluid ounces when the bag is properly closed. Click below to purchase this stand-up sample bags.


Thio-Bags ®

Thio-Bags ®

Thio-Bags ®

SKS Science stocks a 100 ml Whirl-Pak® Thio-Bag ®. This single use bag is 2.25 milliliters thick and has a white smear proof writing area for labeling with pen, pencil or marker. Thio-Bags® are used when sampling chlorinated water and come with a nontoxic, nonnutritive tablet containing 10 mg of active sodium thiosulfate. The tablet is used to neutralize chlorine. This bag is sterilized and EPA approved. Capacity is measured in fluid ounces when the bag is properly closed. Click below to purchase this Thio-Bag®.


Speci-Sponge ®

Speci-Sponge ®

Speci-Sponge ®

SKS Science offers Whirl-Pak® Speci-Sponge® bags in 18 ounces with a white writing area. The 2.5 milliliter thick Speci-Sponge® bag is used for environmental surface sampling where testing for foodborne pathogens or anthrax is required. Surface sampling is done with the sterilized sponge that is provided in the sampling bag. The sponge is free of bactericides and is tested to be non-inhibitory; therefore it is suggested to use sterile gloves while handling the sponge until it is returned in the bag. To test the samples gathered with the sponge simply add media to the sponge while in the bag and incubate for a negative or positive result or squeeze the sample from the sponge and use a pipette to transfer the sample. Click below to purchase this Speci-Sponge® bag.


Filter Bag for Homogenizer Blender

Filter Bag for Homogenizer Blender

Filter Bag for Homogenizer Blender

SKS Science has a 55 ounce Whirl-Pak® Filter Bag for homogenizer blenders. This 55oz bag is 4 milliliters thick featuring a middle layer of perforated polyethylene. The .33 millimeter holes of the middle layer separate liquid from solid samples when a solid sample is placed on one side of the bag and then used in a homogenizer blender. Homogenization is commonly used on body/organ tissue samples. Capacity is measured in fluid ounces when the bag is properly closed. Click below to purchase this polyethylene bag.


SKS Science plastic sample bags are an ideal option for sample testing and storage across a range of industries. Click on the links to be directed to each products page and place an order for your sterile bags today or click here to see them all! View this page for more information about Whirl-Pak® bags.



Sources: http://www.sks-science.com/whirlpak.html

http://www.enasco.com/page/wp_index/?utm_source=WhirlPak&utm_medium=banner&utm_campaign=WP_LearnMore032012




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