A c refrigerant gas r22

When sourcing R22 (Chlorodifluoromethane), the purity level must be at least 99.9% to ensure HVAC system efficiency and prevent compressor damage. Key parameters include moisture content (≤ 10ppm), acidity (≤ 0.1ppm), and evaporating residue (≤ 100ppm). Buyers should request a Certificate of Analysis (COA) for every batch to verify these chemical properties against AHRI-700 standards.

R22 is an HCFC (Hydrochlorofluoromethane) with ozone-depleting potential, currently being phased out globally under the Montreal Protocol. Many countries, including the US and EU members, have strict import quotas or total bans on virgin R22. Before purchasing, you must verify if your country allows the import of R22 and whether you require a specific import license or quota allocation from your local environmental agency.

Refrigerant gas is a high-pressure hazardous material. Ensure cylinders comply with DOT-39 (disposable) or ISO/EN standards (refillable). For bulk industrial use, ton tanks or ISO tanks are more cost-effective. Check for safety valves, proper labeling (UN1018), and pressure test certifications to prevent leaks and explosions during transit and storage.

Counterfeit refrigerants often contain dangerous mixtures (like R40 or hydrocarbons) that can cause system explosions. Always source from verified manufacturers on Made-in-China.com who provide traceable batch numbers and holographic security seals. Conduct a pressure-temperature (P-T) chart check upon receipt; if the cylinder pressure doesn't match the ambient temperature profile for R22, the gas is likely contaminated.

R22 is classified as Class 2.2 Non-Flammable Gas (UN1018). It requires specialized dangerous goods (DG) shipping, which involves higher freight costs and stricter documentation. Ensure the supplier provides a Material Safety Data Sheet (MSDS) and a Dangerous Goods Declaration. Shipping in refrigerated or ventilated containers is often recommended to prevent pressure buildup in tropical transit routes.

Due to the global phase-out, R22 prices are highly volatile. It is wise to lock in prices with a 30% deposit for long-term contracts. For MOQs, most professional exporters require at least a 20ft container (approx. 1,150 cylinders of 13.6kg) to optimize DG shipping costs. If you are a smaller buyer, look for suppliers on Made-in-China.com who offer LCL (Less than Container Load) DG services, though unit costs will be significantly higher.

Use Secured Trading Services or Letters of Credit (L/C) for large volumes to ensure payment is only released upon proof of shipment. Always hire a third-party inspection agency (like SGS or BV) to perform a pre-shipment inspection (PSI). The inspector should verify the net weight of the gas, cylinder pressure, and perform a random purity test to ensure the product matches the proforma invoice.

Beyond the standard Invoice and Packing List, you will need an Ozone Depleting Substances (ODS) Import License, a Pre-Shipment Export License from the exporting country, and a Certificate of Origin. Failure to provide these can lead to heavy fines, seizure of goods, or mandatory re-exportation at the buyer's expense.