Desiccant-holding chamber has straight sides Heavy glass construction Sample plate has 5mm center hole, glaze on one side, and no feet Cover has ground-on knob

Use NIST-traceable reference materials for the highest accuracy available. Traceable™ Conductivity Calibration Standards Certified Reference Material (CRM) offer easy calibration with included instructions and temperature chart. Traceable Conductivity Calibration Standards Certified Reference Materials (CRM) offer easy calibration with included instructions and temperature chart. For the highest accuracy available, use NIST-traceable reference materials. Each bottle includes a NIST-traceable calibration report supplied by the manufacturer and information from batch testing. Also includes step-by step calibration instructions and temperature compensation chart. Accuracy at 25°C is (±0.25 microsiemens for 1, 5, 10 microsiemen solution or ±0.25% for other solutions) or the uncertainty shown on the certificate, whichever is greater.

Hotplate, Stirring; Fisherbrand; Ceramic top; Top plate dimensions: 7 x 7 in.; Overall dimensions: 11.1 x 8.3 x 5.1 in.

GE Healthcare Whatman™ Quantitative Filter Paper: Grade 40 Circles Supports accurate analysis in applications sensitive to very low levels of background contamination. Whatman™ Quantitative Filter Paper: Grade 40 Circles are additionally useful in gravimetric analysis where ash content might affect weight measurements of combusted samples.