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Please, if somebody couls shed a li

Please, if somebody couls shed a li

Please, if somebody couls shed a li

(OP)
Please, if somebody could shed a light on this, I need to clear it in a hurry...
The seismic zone classifications 0 to 4, seem to be identical for the US and Canada; however, the values in table E-2 of API 650 for Seismic zone factors are very different from the ones shown in the NBC(Canadian) standard(Acceleration Ratio, A). For example, for zone 3, these values are 0.3 and 0.08 respectively; what do I use in my API-based calculations???

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