| 1.2.1.1. | For a system or parts thereof with the outside lens in glass, a mixture of water and polluting agent to be applied to the test sample shall be composed of: | a3c0 |
| 1.2.1.1. | For a system or parts thereof with the outside lens in glass, a mixture of water and polluting agent to be applied to the test sample shall be composed of: | a0c0 |