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APA-11B NCAT Asphalt Field Permeameter is a four-tier graduated permeameter. It is constructed of rugged clear acrylic and supplied in two sections. The APA-18 Alternate Top Section for NCAT Asphalt Permeameter is a larger diameter tier that replaces the two top tiers and permits rapid filling for highly permeable paving mixes. The APA-11B permeameter is a component of the AP-1B NCAT Asphalt Field Permeameter Kit that also includes other required testing accessories.
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