Discover how BIOSTELLAR optical dissolved oxygen measurement works and how it differs from the conventional polarographic method. With no oxygen consumption during measurement and no electrolyte replenishment, optical DO technology is a practical option for low-flow water, small-volume samples, aquaculture and environmental monitoring.

Discover how the BIOSTELLAR EC10 conductivity meter, paired with the DDJS-0.01VTK low-conductivity electrode, supports routine testing of pure and ultrapure water. Featuring a 3.5-inch TFT color display, storage for up to 3,000 data sets, flexible calibration functions and IP57 protection, EC10 is designed for laboratory workflows in pharmaceutical, semiconductor, water treatment and research applications.

Learn how to prepare coal and brick samples for oxygen bomb calorimeter testing, including drying, crushing, grinding, weighing, combustion aid selection, and common testing precautions.

A step-by-step guide for testing thermal conductivity of 90×90×190mm porous hollow clay bricks, complying with GB/T 10294 & ASTM C518, avoiding 3 key errors to ensure ≤3% accuracy.

In material R&D, industrial production, and quality inspection, thermal conductivity is a core indicator of material thermal performance, and a thermal conductivity tester is key to accurately measuring it. Indispensable for screening electronic component heat dissipation materials and evaluating building insulation performance, the tester often faces user issues like data deviation from non-standard operation and unmet needs due to improper selection.