Blanket contaminant analysis

Most laboratories describe their blanket analyses for contaminants in SOPs, which provide a full hsting of the contaminants analyzed and the acceptable levels for each. Study protocols in such cases merely make reference to the SOPs. If there is any analysis for contaminants not hsted in the SOPs, the protocol should describe the additional contaminants and the acceptable levels for each. 

If a laboratory conducts a blanket analysis for contaminants, the protocol can make reference to a description of those analyses in laboratory SOPs. Any additional analyses that are specific to the study should be described in the protocol. 

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