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which is then acid-washed using IN HNO3
Grade 161 is used in general laboratory applications
volatile solids testing
It is used for gravimetric analysis of numerous components (e
Ahlstrom-Munksjö 141
Glass Microfiber Filter Paper - 1410-0250 - Grade 141, 2.50cm 131 which is then acid-washed usingAhlstrom Munksj 141 3. 1 m, Fast Speed This grade offers better filtration speed and a higher loading capacity than an analytical filter paper of similar particle retention. Grade 141 is particularly recommended for pre filtration of membrane filters and is also used in combination with Grade 121 as a highly efficient protective and retentive grade density pre filter for membrane filters.
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