Why is timing not so critical with h2s readings

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As mentioned in the theory, the fermentation readings with KIA must take place between 18 and 24 hours after inoculation.Why is timing not so critical with H2S readings?

Reference no: EM13156366

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Why is timing not so critical with h2s readings : As mentioned in the theory, the fermentation readings with KIA must take place between 18 and 24 hours after inoculation.Why is timing not so critical with H2S readings?
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