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EPA Region 9 Sample Container and Preservation List Jan 27, 2023 · The following table indicate the required containers, volumes and chemical preservation, as necessary. Please contact the Region 9 Laboratory regarding preservation and container requirements for Microbiology and Marine/Freshwater Toxicity Testing. Note: All recommendations apply only to samples submitted to the EPA Region 9 Laboratory and are for single sample quantities. See full list on epa.gov EPA 5035A: Is an Empty VOA ...

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