Grade TCLP Acid Treated, 12.5cm

Competitive Equivalents:

Whatman:1810-125
Pall: n/a
Millipore: n/a
Ahlstrom: 0250-125

Binder-free, borosilicate glass fiber filters have 0.7 micron pore size, meet U.S. EPA requirements for Toxicity Characteristic Leaching Procedure (TCLP).  
Scope of Method No. 1311:
"The TCLP is designed to determine the mobility of both organic and inorganic analytes present in liquid, solid and multiphasic wastes."

Binderless glass microfiber filter media with a particle retention of 0.7 um.
Inherently low Barium and Zinc Borosilicate Glass and resistant to acids and bases.
Acid treated and multi-stage deionized water rinsed to conform to EPA method 1311.
Saves time and waste disposal expense in the lab.
Sizes 90mm and 110mm are common to Zero-Headspace Extraction Vessel (ZHE) applications.
Available in six diameters. The 4.7 cm (47mm) size is recommended for use in filtering highly granular samples or those with <10% solids; 9 cm (90mm) size is recommended for use with highly granular samples; the 14.2 cm (142mm) size provides four times the filtration area of 4.7 cm (47mm) filters (ideal for samples with >10% solids).
Competitive Equivalents:

Whatman:1810-125
Pall: n/a
Millipore: n/a
Ahlstrom: 0250-125