We are now able to measure water sample UV transmittance (UVT) at 254 nm wavelength. Quartz cells with a 10 mm path length are used. The UV transmittance of tap water in Singapore was measured 97% (very clean).

We are now able to measure water sample UV transmittance (UVT) at 254 nm wavelength. Quartz cells with a 10 mm path length are used. The UV transmittance of tap water in Singapore was measured 97% (very clean).