Most analytical testing procedures that fall under environmental regulations have a method specific holding time which the test must be completed. The hold time is the time period where the target analytes in the sample matrix remains most stable and representative of the chemical profile at the time of sampling. Holding times vary between analytes and preservation methods.
Analytical testing procedures also require specific containers, preservation, storage requirements, and a minimum volume of sample to be used to perform the test method. These may vary depending on the method used in the laboratory. For more information please see the links provided below or contact your local laboratory representative.
Regulatory Links for Sample Handling and Storage Requirements (including sampling containers) / Preservative and Hold Time Charts:
- CSR Regulations: British Columbia
- CCME Regulations: Federal, Alberta, Prairies (page 14-17)
Alberta lab container requirements are attached (current to April 2023)