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Tobacco product HPHC testing results are represented in the PT domain. This example illustrates HPHC testing and smoking regimens for a cigarette product. The example assumes testing at a single time point, not serial testing over multiple timepoints as in stability studies. See Section 3.1.4, Stability Studies, for more information and examples illustrating how to represent those data.

This example only shows test results for each constituent for 1 replicate of 1 sample of 1 product that was tested (PTREPNUM = 1 for all records). Details of the sampling and testing plan, including the number of samples of the products tested, are determined by the applicant or by regulatory requirement.  Applicants would likely have multiple product samples tested in multiple replicates, and those would be distinguished in the dataset by values of PTREPNUM being set to 1 through n, where n = the number of replicates being performed.

Note the use of the PTXFN (external file name) to indicate that the lab methodology was submitted as separate documentation.

The identifying characteristics of the smoking machine are represented in the Device Identifiers reference dataset. DI is the source of the applicant-defined device ID variable (SPDEVID) used in the PT dataset to indicate the smoking machine used to perform the smoking regimen.

Details of the smoking regimen performed by the smoking machine are represented as device in-use properties (such as settings) of the smoking machine. They are linked to the HPHC testing results in PT by matching values of PTREFID/DUREFID.