Standard Number: QX/T 456-2018(QX/T456-2018)
Chinese:初霜冻日期早晚等级
English:Early and late rating of first frost date
Effective Date:2019-03-01
Standard Applicability:This standard specifies the date of first frost and its early and late class division. This standard applies to the monitoring, forecasting, prediction and impact assessment of the date of first frost and other operations, as well as scientific research.
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