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rosesci.com

Standard silica 60, highly porous, amorphous silicic acid in the form of hard, opalescent particles, prepared by precipitation of water glass with sulfuric acid. Irregular shaped particles.

labdepotinc.com

The Two-Hole Support Stands with Rods are created with durable stamped steel. It has a black enamel finish. The rod is zinc-plated steel and is removable. There is a variety of sizes to choose from.

globalgilson.com

Digital Calipers provide accurate inside, outside, or depth measurements with selectable units in inches or millimeters from 0 to 12in (0 to 300mm). The TSA-268 and TSA-270 models have an extended length range for precise dimensional checks of most asphalt, concrete, and soil specimens up to 6x12in (152x305mm) Dia.xL. All models have a resolution of 0.0005in (0.01mm). Calipers are constructed with quality stainless steel suitable for rugged use. Features include an easy-to-read LCD display with an On/Off switch, ABS (absolute) and INC (incremental) measurement functions, and a zero calibration button. They also have a smooth-moving head using the thumb slider, locking knob, and easy to open battery compartment for the replacement of the included battery. Includes a protective carrying case. TSA-271 Digital Caliper can measure up to 6in (150mm). The jaw depth is 1.5in (38mm). TSA-268 Digital Caliper can measure up to 12in (300mm). The jaw depth is 2.5in (63.5mm). TSA-270 Digital Caliper can measure up to 12in (300mm). The jaw depth is 3.5in (89mm). Optional TSA-292 Caliper Accessory Kit attaches easily to TSA-271 and TSA-268 caliper models for the measurement of drilled concrete cores to meet ASTM C1542 test standard. Features: Stainless steel caliper with locking knob Convenient On/Off switch conserves battery life Included Items: Digital Caliper with 0-6in or 0-12in Range Battery Protective Carrying Case Accessories: TSA-292 Caliper Accessory Kit fits TSA-271 and TSA-268 Digital Calipers to meet ASTM C1542 requirements Related blogs: Non-Destructive Testing of Concrete: An Equipment Guide Concrete Cracking: Evaluating Width, Depth & Movement

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