J
Trying to determine if we need a "sampling plan". I don't think so, but want to make sure...
One of our tests is metals analysis of water samples. The samples that we receive from our (internal) customers are of various quantities and TDS. We dilute most of the samples to overcome the TDS, and draw out the number of mls that we need for the analysis. Is this "sampling" ? Have we just created a sub-sample? Do we need some sort of sampling plan or specific "sampling" procedure for this? We describe the sample preparation (including dilution) in our method.
We also do solids analysis using XRF and XRD. We grind up the solid, etc. in our sample preparation. Obviously we don't use the entire amount of what they send us in the analysis, we take what should be a homogenous portion of what we've prepared.
One of our tests is metals analysis of water samples. The samples that we receive from our (internal) customers are of various quantities and TDS. We dilute most of the samples to overcome the TDS, and draw out the number of mls that we need for the analysis. Is this "sampling" ? Have we just created a sub-sample? Do we need some sort of sampling plan or specific "sampling" procedure for this? We describe the sample preparation (including dilution) in our method.
We also do solids analysis using XRF and XRD. We grind up the solid, etc. in our sample preparation. Obviously we don't use the entire amount of what they send us in the analysis, we take what should be a homogenous portion of what we've prepared.
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