A Class of One. Whatman. Class m i c r o f i b r e f i l t e r s . R e t e n t i o n 0.7 μ η ι t o 2.7 μνη; high s p e e d ; h i g h l o a d i n g c a p a c i t y . The p u r i t y of b o r o s i l i c a t e glass. N o t h i n g e l s e . C o n s i s t e n t u n i f o r m i t y . Grades f o r e v e r y a p p l i c a t i o n . Circles a n d s h e e t s . From l a b o r a t o r y s u p p l y d e a l e r s w o r l d w i d e . For c o m p r e h e n s i v e t e c h n i c a l l i t e r a t u r e , please w r i t e : Whatman Laboratory Products Inc. Whatman Paper Division • 9 B r i d e w e l l Place, C l i f t o n , N e w Jersey 07014, T e l : (201)773-5800.
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