Certifications & Standards
Standards commonly requested by buyers are listed below. Applicability depends on product and destination market. Certificate copies, numbers and validity are shared privately on request — not published as unverified claims.
Certifications & Standards
ISO 9809-1
Refillable seamless steel gas cylinders — quenched and tempered steel. Discussed per product and destination market.
ISO 9809-3
Gas cylinders — refillable seamless steel gas cylinders — design, construction and testing — Part 3: normalized steel cylinders. Not an acetylene-cylinder standard (see ISO 3807).
ISO 3807
Acetylene cylinders — basic requirements and type testing. Discussed for acetylene products when requested. Applicability is confirmed per order.
DOT 3AA
US specification for seamless steel cylinders — applicability confirmed per product and order
TPED
EU transportable pressure equipment directive — discussed per destination market
GB 5099
Chinese national standard for seamless steel gas cylinders — applicability confirmed per product and order
CE Mark
European conformity marking — applicability per product and market. Not a substitute for a published certificate file.
How to Order
1. Send Inquiry
Specify product, volume, country and valve requirements
2. Receive Quotation
Price, MOQ, lead time and spec sheet after review by our sales team
3. Confirm Order
Contract and payment terms agreed before production starts
4. Production & QC
Manufacturing and testing. Videos and certificates are sent privately on request
5. Shipment
Packaging, documents and delivery terms as agreed in the order
Certificate copies are sent privately on request. We do not publish certificate files on the website. Include the product, destination country and standard you need when you request documentation through the contact form or sales@wandagroups.com.