Import 24-400 Sample Vials With Closures — Buy in Bulk from Supplier in China

These 24-400 sample vials with closures are designed for analytical sampling, testing, and validation work where container-induced contamination would compromise results. The vials feature a 24-400 GPI thread finish, a standard neck dimension widely used in chromatography and environmental testing labs. Each vial ships with a Teflon-lined cap and a protective dust cover to prevent particulate ingress during storage and transport. The PTFE (Teflon) liner provides excellent chemical resistance against aggressive solvents, acids, and bases commonly encountered in sample preparation. The supplier, Zhejiang Alwsci Technologies Co.,ltd., positions these vials for laboratories requiring consistent, inert sample containment for sensitive analytical procedures.

The borosilicate glass construction typical for this vial category offers thermal shock resistance and low extractable levels, though buyers should confirm the exact glass type with the supplier. The 24-400 thread specification ensures compatibility with standard autosampler platforms and manual crimping tools. The Teflon-lined closure creates an effective barrier against volatile organic compound (VOC) loss and moisture ingress, critical for EPA and stability testing protocols. The protective dust cover adds a secondary defence against environmental contaminants during benchtop handling and shipping. Cap liners in this product class typically combine PTFE facing with silicone or polypropylene backing for resealability and puncture resistance.

These vials serve pharmaceutical quality control, environmental testing, forensic chemistry, and food safety laboratories. Buyers include contract research organisations, government testing agencies, and industrial labs running GC-MS, LC-MS, or ICP-MS workflows. The 24-400 format accommodates volumes from approximately 20 mL to 60 mL depending on vial dimensions, suitable for composite sampling and long-term storage. Importers should verify thread compatibility with existing cap inventories, confirm glass thermal expansion coefficients for autoclaving, and request certificates of analysis for extractable and leachable testing. The supplier's Harbor trust tier indicates a verified business entity, though the zero percent response rate and zero recorded response hours suggest buyers should establish direct contact early to confirm current capacity and lead times.

Zhejiang Alwsci Technologies Co.,ltd. is based at B410, No.525 Shixiang Road, Gongshu District, Hangzhou 310011, Zhejiang Province, China. The supplier carries a Harbor trust tier, indicating a verified business registration and operational status within the platform's verification framework. The company's location in Hangzhou places it within one of China's established manufacturing corridors for laboratory and analytical consumables, with access to Shanghai port logistics. The response rate of 0.00 percent and average response time of zero hours suggest the supplier has not engaged with buyer inquiries through the platform's messaging system, or that response data has not been captured.

The supplier's profile does not state years in operation, factory size, production capacity, revenue figures, or specific client references. No certifications such as ISO 9001, ISO 13485, or CE marking are mentioned in the available data. The product description emphasises contamination control for analytical applications, positioning the company toward laboratories requiring validated consumables. Importers should conduct independent due diligence: request business registration documents, quality management system certificates, and sample batch testing data before committing to volume orders. The absence of stated MOQ, price, or lead time means these terms require direct negotiation with the supplier.