Berkshire Durx 670 Wipers Berkshire Pack. Combining top-notch and uncompromising quality with an affordable price the Berkshire Durx 670 Wipers Berkshire DR6700404.10/ 21913-410 can fulfill your laboratory needs while still offering a great value for the money. Product Category Description: Ideal for absorbing spills of solvents and deionized water in the cleanroom. Also for general surface and equipment cleaning. Nonwoven wipers are made from a polyester/cellulose blend of superior strength and absorbency with low levels of ions and organic extractables. Made without binders or surfactants resulting in a pure wiper. Suitable for ISO Class 5 (FED-STD-209E Class 100/M3.5) environments. Specifications for Berkshire Durx 670 Wipers Berkshire DR6700404.10 : Dimensions cm (in.): 10.2 x 10.2 (4 x 4) Berkshire No.: DR6700404.10 Unit: Pack of 1200 Particle Generation (>=0.5 m) Biaxial Shake: 20 x 10 /cm Particle Generation (>=0.5 m) Fibers (>=100 m): 100/cm Extractables Using Deionized Water: 0.089percent Extractables Using Isopropyl Alcohol: 0.043percent Ions Sodium: 12 ppm Ions Potassium: 2 ppm Ions Calcium: 7.6 ppm Ions Magnesium: 4.3 ppm Ions Absorbency: 298 mL/m 4.3 mL/g Ions Time to Half-sorption: 3 sec. Ions Basis Weight: 69.3 g/m (Please note that the description and stock photo may not correspond to the specific model listed above) We offer only genuine Berkshire products authorized for sale in the U.S. and other markets so you can be sure that you are buying authentic Laboratory Consumables with a full manufacturer's warranty in addition to our own 100percent Satisfaction Guarantee. We are your premier online distributor for Berkshire Laboratory Consumables. We are an authorized supplier to all federal and state government agencies as well as to research and educational institutions and can facilitate volume orders on many types of laboratory equipment lab consumables and other products to help fulfill your specific needs. We offer Free Shipping and FREE USPS shipping to APO and FPO addresses on all orders in our store over 49. Please refer to our APO/FPO Shipping and Export Restrictions for more information on export to APO/FPO addresses. In addition to the Berkshire Durx 670 Wipers Berkshire DR6700404.10/ 21913-410 we carry a full complement of Laboratory Consumables as well as other product offerings from Berkshire. We also carry a full line of Berkshire accessories to help meet your laboratory and scientific needs. For a complete selection of Berkshire Laboratory Consumables please visit our Berkshire page. For more brand name Laboratory Consumables please visit our Laboratory Consumables store section. To see our complete line of lab medical industrial and scientific products please see our science and lab equipment online catalog. Berkshire Durx 670 Wipers Berkshire DR6700404.10 Pack