# 1.1204 (C55S): equivalents

Quelle: <https://mvg-frankfurt.de/en/materials/comparison/1-1204>

> 1.1204 (C55S) internationally: Ck55, CS50, C50RR, 1.1203 and 0 further designations by country and standard.

Ck55 · CS50 · C50RR · 1.1203

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## Designations by country and standard

| Country / type | Standard | Designation |
|---|---|---|
| Europe | EN | 1.1204· C55S |
| Germany | DIN (old) | Ck55 |
| EN (European standard) | Material number (old) | 1.1203 |
| France | AFNOR | C50RR |
| United Kingdom | BS | CS50 |

## Not unambiguous

- **1.1203** also matches [1.1203](https://mvg-frankfurt.de/en/materials/comparison/1-1203).
- **CS50** also matches [1.1206](https://mvg-frankfurt.de/en/materials/comparison/1-1206).
- **Ck55** also matches [1.1203](https://mvg-frankfurt.de/en/materials/comparison/1-1203).

Equivalents are approximations: the composition and limits of the standards differ in part. For certificates, the ordered standard applies.