Customer Background A dye manufacturer and its third-party testing partner needed to bring their hexavalent chromium testing in line with the newly issued Chinese standard GB/T 47088-2026. Dyestuffs are used throughout textile dyeing, home textiles and apparel, so any Cr(VI) residue travels with the ...

Customer Background: Occupational Hygiene Monitoring Toxic substances in workplace air are chemical agents in the breathing zone that can harm workers' health. Their management, testing and evaluation follow occupational health standards such as GBZ/T 300.1-2026 and the exposure limit standard GBZ 2...

Customer Background Electronic-grade phosphoric acid (EGPA) is a critical wet chemical in the microelectronics and semiconductor industry. It is used in the production of large-scale integrated circuits and thin-film liquid crystal displays, mainly for chip and wafer cleaning and etching. Its purity ...

Background Most hot springs are located on fault zones and show deep-circulation characteristics, which makes them sensitive indicators of geothermal and tectonic changes deep in the crust. For this reason hot spring water is an important observation target for seismic underground fluid monitoring, ...

Background Galacto-oligosaccharides (GOS) are natural functional oligosaccharides, typically built from a galactose or glucose core carrying 1–7 galactosyl units, with degrees of polymerisation ranging from 2 to 8. In the human gut they are used by probiotics such as bifidobacteria and lactobacilli, ...

Achtergrond Zinkboraat is een van de vroegste anorganische vlamvertragers, ontwikkeld in de jaren zeventig. Het biedt een goede thermische stabiliteit, lage toxiciteit en rookonderdrukking, werkt goed in combinatie met andere vlamvertragers en vermindert merkbaar de rookdichtheid wanneer het aan een ...

Background Rebar corrosion is one of the main causes of reduced durability in reinforced concrete structures, and chloride is a leading driver of that corrosion. Concrete consists of cement, sand and aggregate, mixing water and chemical admixtures — and the chloride carried in by admixtures is a ...

Background Ammonium polyphosphate (APP), also called polymerized or condensed ammonium phosphate, is widely used as a compound fertilizer. Low-polymerization grades are highly water-soluble, carry high nitrogen and phosphorus content, and release their phosphorus slowly. Compared with conventional ...

Achtergrond Het Chinese ministerie van Ecologie en Milieu heeft vier nationale ecologische en milieunormen vrijgegeven.Omgevingslucht ️ Bronverdeling van deeltjes ️ Bepaling van levoglucosan, mannosan en galactosan in deeltjes door ionchromatografie(HJ 1413-2025) is op 1 augustus 2025 in werking ...