10 ml glass bottle

For B2B buyers, the choice depends heavily on the application. For essential oils, prioritize Amber or Cobalt Blue glass to provide UV protection and prevent oxidation. For pharmaceuticals, ensure the glass is Type I (Borosilicate) or Type III (Soda-lime) depending on chemical sensitivity. Pay close attention to the neck finish (e.g., 18/415 or DIN 18) to ensure compatibility with droppers, sprayers, or roller balls. Additionally, verify the brimful capacity to ensure it meets your exact filling requirements.

Quality validation should focus on wall thickness uniformity and thermal shock resistance. Request suppliers to provide internal pressure test reports and verticality measurements to ensure the bottles don't tip on automated filling lines. For high-end cosmetics, check for surface defects like bubbles or scratches. It is highly recommended to source from manufacturers on Made-in-China.com who hold ISO 9001 or ISO 15378 (Primary packaging for medicinal products) certifications.

Compliance varies by target market. For the US market, bottles must comply with FDA 21 CFR standards for food and drug contact. For the EU, adherence to REACH and heavy metal limits (Directive 94/62/EC) is mandatory. If the bottles are intended for children's products, ensure they are compatible with Child-Resistant Closures (CRC) that meet ISO 8317 or US 16 CFR 1700.20 standards.

Suppliers typically offer silk-screen printing, hot stamping, frosting, and color coating. For a premium look, consider electroplating or decal application. When requesting customization, provide Pantone color codes and high-resolution AI files for logos. Ensure the supplier uses lead-free and non-toxic inks to maintain product safety and compliance.

Glass is fragile, so packaging specifications are critical. Insist on the use of five-layer corrugated export cartons with internal egg-crate dividers or shrink-wrapped pallets. For LCL (Less than Container Load) shipments, request wooden crates or plastic pallets to prevent crushing. Always include a breakage allowance clause in your contract, typically allowing for a 2-3% damage rate; anything above this should be covered by the supplier or insurance.

Focus on Total Cost of Ownership (TCO) rather than just the unit price. Negotiate based on volume tiers—increasing an order from 10,000 to 50,000 units can often reduce costs by 15-25%. Ask for free samples to test the seal integrity with your specific liquid formula. Furthermore, discuss lead times clearly, as glass furnace production cycles can lead to delays if the item is not currently in stock.

Utilize Secured Trading Services provided by platforms like Made-in-China.com to protect your payment. Use Letter of Credit (L/C) for very large orders or Telegraphic Transfer (T/T) with a 30% deposit and 70% balance against the Bill of Lading (B/L). Never wire full payments upfront to unverified suppliers. Conduct a Pre-Shipment Inspection (PSI) through a third party like SGS or Intertek to verify quantity and quality before the final payment.

Be aware of Anti-dumping duties that some countries impose on Chinese glass products. Check the HS Code (typically 7010.90) against your local customs tariff schedule. For shipping, Sea Freight is the most economical for glass due to its weight, but ensure you factor in port congestion and seasonal surcharges. For urgent, small-batch needs, Air Freight is possible but will significantly increase the unit cost due to the weight-to-volume ratio.