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EN 13034 covers the lowest level of chemical protection intended to protect from a potential exposure to small quantities of spray or accidental low volume splashes of less hazardous chemicals.
The effect of the following chemicals are tested on the clothing material under this standard :
| Chemical | Concentration weight % | Temperature of chemical ºC(± 2 ºC) |
|---|---|---|
| H2SO4 | 30 (aqueous) | 20 |
| NaOH | 10 (aqueous) | 20 |
| o-Xylene | Undiluted | 20 |
| Butan-1-ol | Undiluted | 20 |
The criteria for the classification of clothing under different categories is done as per the performance levels :
| Class | Repellency % | Penetration % |
| 3 | >95% | <1% |
| 2 | >90% | <5% |
| 1 | >80% | <10% |