Specimen Collection Fecal Specimens General Considerations Keep stool specimens cool. Follow collection and storage instructions for specific test. Do not use toilet paper to collect stool. Collection Pass stool directly into a sterile, wide mouth, leak-proof container with a tight fitting lid. Pass stool into a clean, dry container and transfer to collection/transport container. Record start date and time and completion date and time for timed collections. For specimens for ova and parasite examination transfer fecal specimen to Parapak preservation containers.