Test Mark Industries 995 N. Market Street East Palestine, OH 44413 Toll Free 800-783- Fax 330-426-2210 Pressure Meter Hoskin Scientific Limited Stainless Steel Clamping System! Hoskin - Vancouver (604) 872-7894 Hoskin - Burlington (905) 333-5510 Hoskin - Montreal (514) 735-5267 www.hoskin.ca ASTM C-231 & AASHTO T-152 The Pressure Meter is used for measuring the amount of entrained air in freshly mixed concrete. The test method equalizes a known volume of air in the pressure chamber, with the unknown value of entrained air in the meter’s concrete filled base. The amount of entrained air is then read on the meter’s gauge as the direct percentage of air entrained in the sample. Constructed of cast aluminum, the meter is durable yet lightweight. The bowl capacity is 0.25 cu. ft. and is flanged to provide a pressure tight fit between the bowl and the coverlid assembly, with a machined smooth interior surface. Four one-piece, self-locking clamps have the proper tension for sealing the lid to the base. A direct percentage-reading gauge with calibration adjustments is readable to the nearest 1/10 of a percent. The gauge is positioned for easy reading. The meter features an all brass pump with elongated stroke to build test pressure faster with fewer strokes. Its unique check valve eliminates “o”- ring seal problems associated with other style pumps. The meter comes complete with heavy-duty plastic carrying case, syringe, tamping rod, strike-off bar, calibration vessel, and tubes with instructions and parts list.

Pressure MeterTest Mark Industries 995 N. Market Street East Palestine, OH 44413 Toll Free 800-783-Fax 330-426-2210 Pressure Meter Hoskin Scientific Limited Stainless Steel Clamping

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Test Mark Industries995 N. Market StreetEast Palestine, OH 44413

Toll Free 800-783-Fax 330-426-2210

Pressure MeterHoskin Scientific Limited

Stainless Steel Clamping System!

Hoskin - Vancouver(604) 872-7894

Hoskin - Burlington(905) 333-5510

Hoskin - Montreal(514) 735-5267

www.hoskin.ca

ASTM C-231 & AASHTO T-152

The Pressure Meter is used for measuring the amount ofentrained air in freshly mixed concrete. The test method equalizes a knownvolume of air in the pressure chamber, with the unknown value of entrainedair in the meter’s concrete filled base. The amount of entrained air is thenread on the meter’s gauge as the direct percentage of air entrained in thesample.

Constructed of cast aluminum, the meter is durable yet lightweight. Thebowl capacity is 0.25 cu. ft. and is flanged to provide a pressure tight fitbetween the bowl and the coverlid assembly, with a machined smoothinterior surface. Four one-piece, self-locking clamps have the propertension for sealing the lid to the base.

A direct percentage-reading gauge with calibration adjustments is readableto the nearest 1/10 of a percent. The gauge is positioned for easy reading.

The meter features an all brass pump with elongated stroke to build testpressure faster with fewer strokes. Its unique check valve eliminates “o”-ring seal problems associated with other style pumps.

The meter comes complete with heavy-duty plastic carrying case, syringe,tamping rod, strike-off bar, calibration vessel, and tubes with instructionsand parts list.