Berkshire Lensx 90 Lens Tissues Berkshire Case. Combining top-notch and uncompromising quality with an affordable price the Berkshire Lensx 90 Lens Tissues Berkshire LN90.0909.16/ 52847-150 can fulfill your laboratory needs while still offering a great value for the money. Product Category Description: Very soft nonabrasive tissues for use on most sensitive surfaces such as lenses. Ideal for coated optics and laser cleaning applications. Nonwoven wipers are made of 70percent rayon 30percent cellulose. Low in ash and organic impurities. Tissues comply with Government Lens Paper Specification AA-50177 Type 1 Lightweight ISO Class 7 (FED-STD-209E Class 10000/M5.5) cleanroom applications. Ordering Information: Tissues are polywrapped. Specifications for Berkshire Lensx 90 Lens Tissues Berkshire LN90.0909.16 : Dimensions cm (in.): 22.9 x 22.9 (9 x 9) Berkshire No.: LN90.0909.16 Unit: Pack of 1000 Particle Generation (>=0.5 m) Biaxial shake: 7.8 x 10 /cm Particle Generation (>=0.5 m) Fibers (>=100 m): 1.2/cm Extractables Using Deionized Water: 0.85percent Extractables Using Isopropyl Alcohol: 0.031percent Ions Sodium: 120 ppm Ions Potassium: 6.2 ppm Ions Calcium: 100 ppm Ions Magnesium: 17 ppm Ions Absorbency: 96.2 mL/m 10 mL/g Ions Basis Weight: 9.47 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 Lensx 90 Lens Tissues Berkshire LN90.0909.16/ 52847-150 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 Lensx 90 Lens Tissues Berkshire LN90.0909.16 Case