According to Beer’s Law, absorbance is directly proportional to the path length of the UV light through the water sample. Absorbance is given by the following equation: UVA = ε•b•c where ε is the molar absorbtivity of the particular type…
UV ABSORBANCE The UV absorbance is calculated as a relative measure of the amount of light absorbed by a water sample compared with the amount of light absorbed by a pure water sample. The sample water measurement is actually divided…
UVA and UVT are essentially just different representations of the same physical phenomenon. They can be related by a simple mathematical expression which indicates an inverse logarithmic relationship between UVA and UVT. UVA = 2 – log10 UVT Since UVT and…
WHAT IS UVT TESTING? Ultraviolet transmission or UV transmittance (UVT) is a water quality measurement. The method works by measuring the amount of UV light, typically at 254 nm, that is able to pass through a water sample of a…
UV254 is a water quality test parameter that provides a quick measurement of the organic matter in water. The measurement technique works by shining ultraviolet light (UV) light at 254 nm through a quartz cells that contains a representative water…