This news introduces the upgraded EN 13823 Single Burning Item Test Apparatus launched by our brand, a core lab device for Euroclass fire classification of wall, facade and ceiling construction materials. Equipped with double insulated duct, mobile trolley and high-precision auto control system, it stably measures heat release, smoke and flame spread, with full global after-sales support for testing laboratories.

This paper elaborates on the working principle of carbon black content testers based on gravimetric combustion. It distinguishes carbon black content testing from dispersion testing, analyzes common measurement errors, and lists key instrument performance indicators and applicable standards. It also introduces standardized test equipment from BRT for plastic, cable and geosynthetic labs.

This document introduces the GJ16C plastic pipe hydrostatic tester, including its control system, technical parameters, matched constant temperature water tank and 304 stainless steel fixtures. It meets multiple GB and ISO standards for long-term static pressure and burst tests. Featuring modular independent channels, high precision, power-off data storage and energy-saving temperature control, the whole set supports customized configurations for pipe inspection institutions.

This paper elaborates on the working principle of UV-Vis spectrophotometers based on the selective light absorption of substances. As an efficient and precise analytical instrument, it supports qualitative and quantitative tests. Widely adopted in modern laboratories, it serves as a reliable practical tool for chemical, environmental, pharmaceutical and other routine sample analyses.

Ultraviolet-visible (UV-Vis) spectrophotometer is a common laboratory analytical instrument that detects the absorbance and transmittance of liquid samples within ultraviolet and visible spectral ranges. During detection, incident light penetrates liquid samples, wherein solute substances absorb part of the light while the rest transmits through the sample. The instrument calculates sample absorbance by comparing the intensity of incident light and transmitted light, so as to quantify the target compound concentration in samples. Its detection principle complies with the Beer-Lambert Law, which defines the quantitative correlation between sample absorbance, analyte concentration and optical path length. With standardized testing procedures, the instrument enables rapid, accurate and reliable quantitative analysis of samples in routine laboratory experiments.

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