Reagent bottle

The choice of material is critical for chemical compatibility. Borosilicate glass (3.3) is the gold standard for high-temperature resistance and chemical inertness. For plastic alternatives, HDPE (High-Density Polyethylene) is excellent for acids and bases, while PP (Polypropylene) is preferred for its autoclavability at 121°C. For light-sensitive chemicals, amber-colored glass or opaque plastic must be used to prevent UV degradation.

Look for bottles featuring a GL45 thread standard for glass or specialized liner-less designs for plastic. Ensure the caps are made of PP or PBT and include a pouring ring to prevent drips. For volatile organic solvents, prioritize caps with PTFE-faced liners to ensure a gas-tight seal and prevent chemical erosion of the cap material.

Suppliers should demonstrate compliance with ISO 4796-1 for laboratory glassware. For medical or pharmaceutical applications, ensure the manufacturer follows USP Class VI for plastics and holds FDA or CE certification. If the bottles are used for transporting hazardous goods, they must meet UN Packaging Standards to ensure safety during transit.

Wide-mouth bottles are designed for easy filling and retrieval of powders, viscous liquids, or solid samples, and they facilitate easier cleaning. Narrow-mouth bottles are optimized for liquid storage and precision pouring, reducing the risk of splashing and minimizing evaporation of volatile substances.

Reagent bottles, especially glass ones, are fragile. Insist on 5-layer corrugated export cartons with individual cell dividers and bubble wrap. For bulk orders, specify palletization with shrink wrap to minimize manual handling. Always request a drop test report from the supplier before dispatch.

Focus on Tiered Pricing based on volume; for example, aim for a 15-20% discount when moving from 500 to 2,000 units. Request customized graduation markings or private labeling (OEM) as part of the package. Ask for pre-shipment inspection (PSI) rights to ensure the batch matches the approved sample quality.

Utilize the Secured Trading services provided by Made-in-China.com to protect your payments. Before placing a large order, hire a third-party agency like SGS or Intertek to perform a factory audit to verify the supplier's ISO 9001 production capacity and quality control laboratory.

Ensure the HS Code (typically 7017.90 for glass or 3923.30 for plastic) is correctly declared to avoid tariff penalties. Provide a clear Material Safety Data Sheet (MSDS) if the bottles are pre-filled or treated. For shipping to the US or EU, ensure all wooden pallets are ISPM 15 heat-treated to pass customs quarantine.