Impact of Hold times on Soil Salinity (Chloride, EC, pH):

Modified on: Fri, 1 Apr, 2022 at 10:47 AM

Hold times for chloride, EC and pH vary with jurisdiction, ranging from "28 days" to "unlimited when dry" to "unlimited," thus hold time is rarely an issue for these tests.

In most locations, these parameters are routinely run off of dried and ground (DG) samples.  Drying and grinding increases sample stability, thus the unlimited hold time.  The exception is Ontario which specifies a 30 day hold time for pH on an "as  received" (wet) sample.  EC and chloride are unlimited when dried.

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