Surface contamination - Import export

Volumetric flasks are highly transparent, easy to clean, and meet Class A tolerances. Flasks are molded PFA, which is highly resistant to heat and chemical contamination. PFA surface properties offer superior clean-up compared to glass and reduces risk of sample carryover in trace analysis applications. Screw cap design provides reduced contamination risk, compared to traditional stopper design.  Application: Suitable for storing and packing high concentration, high purity and strong corrosive drugs and chemical reagents and standard samples.Such as: the State Oceanic Administration for the storage of ocean seawater standard and mercury standard solution;Antarctic Research Team of University of Science and Technology of China for sample collection;China Institute of Metrology for storage of standard liquid.

Solid top GRP panels are made of standard open mesh grating finished with a solid 3mm top plate. The top plate is gritted, creating an anti-slip surface ideal for pedestrian use. High strength and lightweight, they are often specified over open mesh gratings for safety reasons, such as preventing contamination to surfaces below. The closed top also creates an easier surface to walk over, particularly for wheels. Panel Thickness: 28mm (25mm mesh + 3mm plate), 41mm (38mm mesh + 3mm plate), 53mm (50mm mesh + 3mm plate) Available in a range of colours and sizes

Stainless steel derives its corrosion resistant properties from a thin oxide film on the surface, often referred to as a passive layer. Surface contamination can prevent the formation of the passive layer and cause stainless steel to corrode. Heat tint or weld burn discolouration are such surface contaminants and require removal.