Laboratory glass bottles with threaded caps, UVshielding glass, and clear graduations — designed to protect reagents, prevent leaks, and support precise measurements. Key benefits Secure threaded seal: screw cap provides a tight closure to help prevent leakage of volatile substances and reduce exposure risks during storage and transport. UV protection: UVshielding glass blocks ultraviolet light to protect lightsensitive reagents and extend shelf life. Precise measurement: clear, accurate graduations on the small bottles facilitate reliable liquid measurement and reproducible experimental results. Laboratoryready versatility: suitable for reagent storage, sample containment, and liquid sampling across chemical and analytical lab workflows. Materials and performance Material: laboratorygrade glass for chemical compatibility and easy cleaning. Closure: threaded cap designed for a secure seal with common lab handling. Function: prevents leakage, minimizes UV exposure, and enables accurate volume reading. Typical applications Chemical reagent storage: keep solvents and reagents contained and protected from light to maintain stability between experiments. Sample collection and transport: use as sample containers or liquid sampling bottles where secure sealing and spill prevention are required. Analytical prep and dosing: use the graduated bottles for smallvolume dispensing, QC sampling, or preparative steps that require accurate liquid measurements. Compatibility and suitability Intended for use in chemical laboratories and related research settings. Suitable for volatile substances, lightsensitive reagents, and generalpurpose storage of liquids and samples. Ordering notes Small glass bottles with threaded caps and clear graduations; designed to improve safety and measurement accuracy in lab environments.