Abstract: Material in a supply chain is tracked by a method of applying a DNA taggant set to a first batch of the material produced by a first supplier of the material. The DNA taggant set corresponds to a tag string corresponding to the first supplier. The first batch is aggregated with a second batch to create an aggregated lot. A sample is selected from the aggregated lot and tested to determine a DNA taggant set of the sample. After selecting a sample from the aggregated lot, the sample may be labeled with a grade and then placed in a receptacle corresponding to the grade.

Abstract: Material in a supply chain is tracked by a method of applying a DNA taggant set to a first batch of the material produced by a first supplier of the material. The DNA taggant set corresponds to a tag string corresponding to the first supplier. The first batch is aggregated with a second batch to create an aggregated lot. A sample is selected from the aggregated lot and tested to determine a DNA taggant set of the sample. After selecting a sample from the aggregated lot, the sample may be labeled with a grade and then placed in a receptacle corresponding to the grade.

Abstract: Material in a supply chain is tracked by a method of applying a DNA taggant set to a first batch of the material produced by a first supplier of the material. The DNA taggant set corresponds to a tag string corresponding to the first supplier. The first batch is aggregated with a second batch to create an aggregated lot. A sample is selected from the aggregated lot and tested to determine a DNA taggant set of the sample. After selecting a sample from the aggregated lot, the sample may be labeled with a grade and then placed in a receptacle corresponding to the grade.

Abstract: Material in a supply chain is tracked by a method of applying a DNA taggant set to a first batch of the material produced by a first supplier of the material. The DNA taggant set corresponds to a tag string corresponding to the first supplier. The first batch is aggregated with a second batch to create an aggregated lot. A sample is selected from the aggregated lot and tested to determine a DNA taggant set of the sample. After selecting a sample from the aggregated lot, the sample may be labeled with a grade and then placed in a receptacle corresponding to the grade.

Abstract: A sanitation management system maintains records of exemplary locations on an item to be sanitized and indicates those locations to a person or system charged with applying a pathogen surrogate prior to a sanitation process. The sanitation management system maintains records of where the pathogen surrogate was applied prior to the sanitation process. Following the sanitation process, the sanitation management system indicates to an inspector, or an inspection system, locations of where the pathogen surrogate was applied for the purpose of facilitating testing of the sanitation process by checking for the presence of the pathogen surrogate at some or all of those locations. This can ensure that the inspection process is relevant to the sanitation process and less likely to generate false negatives where the inspection finds a lack of the pathogen surrogate not due to cleaning, but due to lack of application of the pathogen surrogate.

Abstract: Material in a supply chain is tracked by a method of applying a DNA taggant set to a first batch of the material produced by a first supplier of the material. The DNA taggant set corresponds to a tag string corresponding to the first supplier. The first batch is aggregated with a second batch to create an aggregated lot. A sample is selected from the aggregated lot and tested to determine a DNA taggant set of the sample. After selecting a sample from the aggregated lot, the sample may be labeled with a grade and then placed in a receptacle corresponding to the grade.

Abstract: A sanitation management system maintains records of exemplary locations on an item to be sanitized and indicates those locations to a person or system charged with applying a pathogen surrogate prior to a sanitation process. The sanitation management system maintains records of where the pathogen surrogate was applied prior to the sanitation process. Following the sanitation process, the sanitation management system indicates to an inspector, or an inspection system, locations of where the pathogen surrogate was applied for the purpose of facilitating testing of the sanitation process by checking for the presence of the pathogen surrogate at some or all of those locations. This can ensure that the inspection process is relevant to the sanitation process and less likely to generate false negatives where the inspection finds a lack of the pathogen surrogate not due to cleaning, but due to lack of application of the pathogen surrogate.

Abstract: A dispersant system comprises a plurality of taggant vessels, each having a taggant that corresponds to a position in a tag string and a computer controller convert the tag string into a selection of a taggant set while computer-controlled valves allow or block a flow of taggants to a manifold output tube. From the output tube, a mix of the taggants flow to form a dispersant formed according to the tag string. A nozzle disperses the dispersant onto an object to be tagged, possibly atomized with air. The taggant can comprise a DNA taggant comprising a static portion and a dynamic portion that is unique to each tag string position. Tag strings for adjacent lots might have a low Hamming distances to reduce cross-contamination and/or have redundancy for error detection and correction and selected so that consumption of taggants evens out over the plurality of taggant vessels.

Abstract: A sanitation management system maintains records of exemplary locations on an item to be sanitized and indicates those locations to a person or system charged with applying a pathogen surrogate prior to a sanitation process. The sanitation management system maintains records of where the pathogen surrogate was applied prior to the sanitation process. Following the sanitation process, the sanitation management system indicates to an inspector, or an inspection system, locations of where the pathogen surrogate was applied for the purpose of facilitating testing of the sanitation process by checking for the presence of the pathogen surrogate at some or all of those locations. This can ensure that the inspection process is relevant to the sanitation process and less likely to generate false negatives where the inspection finds a lack of the pathogen surrogate not due to cleaning, but due to lack of application of the pathogen surrogate.

Abstract: Material in a supply chain is tracked by a method of applying a DNA taggant set to a first batch of the material produced by a first supplier of the material. The DNA taggant set corresponds to a tag string corresponding to the first supplier. The first batch is aggregated with a second batch to create an aggregated lot. A sample is selected from the aggregated lot and tested to determine a DNA taggant set of the sample. After selecting a sample from the aggregated lot, the sample may be labeled with a grade and then placed in a receptacle corresponding to the grade.

Abstract: A sanitation management system maintains records of exemplary locations on an item to be sanitized and indicates those locations to a person or system charged with applying a pathogen surrogate prior to a sanitation process. The sanitation management system maintains records of where the pathogen surrogate was applied prior to the sanitation process. Following the sanitation process, the sanitation management system indicates to an inspector, or an inspection system, locations of where the pathogen surrogate was applied for the purpose of facilitating testing of the sanitation process by checking for the presence of the pathogen surrogate at some or all of those locations. This can ensure that the inspection process is relevant to the sanitation process and less likely to generate false negatives where the inspection finds a lack of the pathogen surrogate not due to cleaning, but due to lack of application of the pathogen surrogate.

Abstract: A sanitation management system maintains records of exemplary locations on an item to be sanitized and indicates those locations to a person or system charged with applying a pathogen surrogate prior to a sanitation process. The sanitation management system maintains records of where the pathogen surrogate was applied prior to the sanitation process. Following the sanitation process, the sanitation management system indicates to an inspector, or an inspection system, locations of where the pathogen surrogate was applied for the purpose of facilitating testing of the sanitation process by checking for the presence of the pathogen surrogate at some or all of those locations. This can ensure that the inspection process is relevant to the sanitation process and less likely to generate false negatives where the inspection finds a lack of the pathogen surrogate not due to cleaning, but due to lack of application of the pathogen surrogate.

Abstract: A dispersant system comprises a plurality of taggant vessels, each having a taggant that corresponds to a position in a tag string and a computer controller convert the tag string into a selection of a taggant set while computer-controlled valves allow or block a flow of taggants to a manifold output tube. From the output tube, a mix of the taggants flow to form a dispersant formed according to the tag string. A nozzle disperses the dispersant onto an object to be tagged, possibly atomized with air. The taggant can comprise a DNA taggant comprising a static portion and a dynamic portion that is unique to each tag string position. Tag strings for adjacent lots might have a low Hamming distances to reduce cross-contamination and/or have redundancy for error detection and correction and selected so that consumption of taggants evens out over the plurality of taggant vessels.