What each framework covers
| Framework | Region | What it governs |
|---|---|---|
| ASTM C494 / C494M | US and project specs worldwide | Classification by type (A–G, including Type F high-range and Type G retarding high-range) and performance requirements |
| EN 934-2 | Europe | Definitions, requirements and conformity for concrete admixtures, tied to CE marking and EN 206 |
| GB/T 8076 | China | Classification, marking and performance limits for concrete admixtures; the 2025 revision took effect 1 August 2026 |
| JIS A 6204 | Japan | Chemical admixtures for concrete, with its own test cement and procedures |
We do not host copyrighted standard texts. Chinese national standards are available from the official platform; ASTM, EN and JIS texts must be obtained from their official channels. We can provide an English summary of key limits on request.
Entries in this section
- ASTM C494 vs EN 934 vs GB/T 8076 — a practical comparison
- Standards & Compliance hub — what changed in the 2026 GB revision and how to verify it
Market-specific gates
Beyond product standards, exports commonly meet conformity and registration gates such as SABER in Saudi Arabia, REACH in the EU, and project-specific prequalification by EPC contractors. These are documented country by country in our market reports.
Frequently asked questions
Does passing ASTM C494 mean a product meets EN 934?
No. Test cements, mix designs, acceptance limits and conformity procedures differ. Re-test under the standard named in the supply contract.
What changed in GB/T 8076 recently?
The 2025 revision took effect on 1 August 2026, replacing the 2008 edition and changing the standard from mandatory GB to recommended GB/T, with revised marking rules and limits. See our Standards & Compliance hub for the itemised changes.