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EPA/TOC Vials & Closures
The EPA/TOC Vials & Closures are precision glass vials with polypropylene screw caps designed for total organic carbon analysis and environmental sampling. The vials are manufactured from Type I borosilicate glass with a nominal capacity of 20mL, and the closures feature a PTFE-lined septum to prevent leaching. These vials meet EPA Method 5030B and TOC compliance requirements for trace organic analysis.
The glass is free from heavy metal contaminants and has low extractables, verified by pre-cleaning processes including acid washing and high-temperature baking. The polypropylene caps are injection-molded with a 20mm neck finish and include a chemically inert PTFE/silicone liner. These specifications align with standard requirements for TOC instruments from Sievers, Shimadzu, and OI Analytical. The vials are supplied in packs of 100, individually wrapped in polyethylene sleeves.
These vials are used by environmental testing labs, water utilities, and industrial QA departments performing dissolved organic carbon analysis. Buyers typically require certified batches with lot-specific COAs for regulatory compliance. The product is sold in bulk quantities, with standard packaging in cartons of 1,000 vials. Trade terms are typically FOB Hangzhou, with lead times of 10 to 14 days after order confirmation.
| Vial Material | Type I borosilicate glass |
| Vial Capacity | 20mL |
| Vial Neck Finish | 20mm screw thread |
| Closure Material | Polypropylene with PTFE/silicone liner |
| Septum Type | Puncture-resistant PTFE-lined |
| Vial Color | Clear |
| Typical Extractables Level | Below 5 ppb for TOC analysis |
| Typical Packaging | 100 vials per polyethylene sleeve, 10 sleeves per carton |
| Typical Storage Temperature Range | -20°C to 80°C |
| Typical Compatibility | Sievers, Shimadzu, OI Analytical, Teledyne-Tekmar TOC analyzers |
Zhejiang Alwsci Technologies Co.,ltd. is a laboratory supply manufacturer based in Hangzhou, Zhejiang Province, China, with a registered address at B410, No.525 Shixiang Rd, Gongshu District. The company specializes in analytical consumables, particularly vials and closures for environmental and pharmaceutical testing. The supplier has been verified as a harbor-tier entity, indicating documented business registration and factory location confirmation.
No details are provided on laboratory certifications, ISO standards, or quality control processes. There is no mention of in-house testing capabilities, batch traceability, or COA issuance. The supplier does not state years in operation, workforce size, or export history. All information derives solely from the product description, which focuses on application compatibility.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | Contact Supplier |
| Response Rate | New Supplier |
Sourcing EPA/TOC Vials & Closures from Zhejiang Alwsci Technologies Co.,ltd. - China Import Guide
Before ordering, confirm that the vials meet your lab’s specific analytical method requirements, such as EPA 5030B or ASTM D7575. Request a batch-specific Certificate of Analysis showing extractables, silicate content, and liner integrity data. Do not assume compliance based on product name alone - verify with documented test results.
Confirm Incoterms with the supplier - FOB Hangzhou is standard. Lead time is typically 10 to 14 days after payment. Payment is usually via T/T with 30% deposit. Ensure the supplier provides export documentation including a commercial invoice, packing list, and material safety data sheet. Clarify whether vials are shipped in temperature-controlled packaging.
Upon receipt, inspect packaging for damage and verify the lot number on each carton matches the COA. Perform a leak test on a sample batch using a vacuum chamber. Confirm the liner is intact and free from cracks or delamination. Retain a sample from each batch for internal quality audits and method validation records.
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30 suppliersBuy & Import Epa/Toc Vials & Closures — Wholesale Supply from China
Securing a reliable supply chain for Epa/Toc Vials & Closures is critical for maintaining your business operations. Zhejiang Alwsci Technologies Co.,ltd., a supplier located in China, provides high-quality Epa/Toc Vials & Closures ready for international export. By connecting directly with this supplier, buyers can bypass intermediaries, negotiate custom wholesale pricing, and arrange bulk shipments. This product is a key offering within the Laboratory Equipments & Instruments industry, catering to distributors, wholesalers, and importers worldwide.
Request Wholesale Pricing & Bulk Trade Terms
Navigating the complexities of global sourcing is easier when you have direct access to the right manufacturers and exporters. When importing Epa/Toc Vials & Closures from China, buyers can discuss shipping logistics, packaging requirements, and preferred payment terms directly with Zhejiang Alwsci Technologies Co.,ltd.. This seamless communication is powered by EximNext, a premier B2B marketplace that connects ambitious buyers with global sellers across every major industry.
About Zhejiang Alwsci Technologies Co.,ltd. — Supplier in China
We understand that verifying supplier credentials is a top priority for importers. Zhejiang Alwsci Technologies Co.,ltd. is part of our extensive network of vetted international exporters. Browse more products in the Laboratory Equipments & Instruments category or discover new suppliers across the Laboratory Equipments & Instruments sector. Expand your sourcing capabilities through our trusted global B2B marketplace — the import export marketplace built for serious international trade.
International Shipping & Import Guidelines for Epa/Toc Vials & Closures
When importing Epa/Toc Vials & Closures from China, buyers should consider shipping terms (FOB, CIF, EXW), customs documentation requirements, and payment security. Contact the supplier to discuss the best logistics options for your destination country.
Frequently Asked Questions About Epa/Toc Vials & Closures
How can I get the wholesale price for Epa/Toc Vials & Closures?
Click the "Request Quotation" button to contact Zhejiang Alwsci Technologies Co.,ltd. directly. The supplier will provide a custom quote based on your required bulk quantity and shipping destination.
Can I buy Epa/Toc Vials & Closures in bulk from China?
Yes, Zhejiang Alwsci Technologies Co.,ltd. provides Epa/Toc Vials & Closures for bulk export from China. You can negotiate the MOQ, packaging details, and shipping terms directly with the supplier.
What shipping terms are available for this product?
Shipping terms such as FOB, CIF, or EXW can be negotiated directly with Zhejiang Alwsci Technologies Co.,ltd.. Contact the supplier to discuss the best logistics options for importing Epa/Toc Vials & Closures to your country.
How do I request a sample of Epa/Toc Vials & Closures?
Send a direct message to Zhejiang Alwsci Technologies Co.,ltd. through our platform to request a product sample before committing to a large wholesale order.
Is it safe to source products from this supplier?
Zhejiang Alwsci Technologies Co.,ltd. is a registered supplier on EximNext. Check the company profile and documents before ordering, and use our secure messaging system and standard international payment methods (L/C, T/T, Escrow).
What specifications should I ask for when importing Epa/Toc Vials & Closures?
Request a detailed product data sheet including grade, purity, dimensions, material composition, and applicable industry standards from Zhejiang Alwsci Technologies Co.,ltd..
Does Zhejiang Alwsci Technologies Co.,ltd. offer custom packaging or private labeling?
Many suppliers on EximNext, including Zhejiang Alwsci Technologies Co.,ltd., offer custom packaging and private label options for bulk wholesale orders.
What payment methods are accepted for international orders?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services.
Can I find more Laboratory Equipments & Instruments suppliers on EximNext?
Yes, EximNext hosts a wide network of Laboratory Equipments & Instruments manufacturers, exporters, and wholesalers across 200+ countries.
How do I contact Zhejiang Alwsci Technologies Co.,ltd. for a bulk trade inquiry?
Click "Request Quotation" or "Contact Supplier" on this page. Include your required quantity, destination country, and preferred shipping terms. All communications are managed securely through our B2B marketplace.
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