What is the recommended limit for the maximum transmittance in the UV spectrum for all grades of filters?
a) τ (λ = 313 nm) < 0,1 τ V
b) The trans...
What is the recommended limit for the maximum transmittance in the UV spectrum for all grades of filters?
a) τ (λ = 313 nm) < 0,1 τ V b) The transmittance between 210 and 313 nm should not exceed the value specified for 313 nm. a) Only afirmation a is correct. b) Only afirmation b is correct. c) Both afirmations are correct. d) Both afirmations are incorrect.
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