"Vessel" - what is it, definition of the term
«Vessel» denotes any hollow enclosure engineered to contain, transport, or support fluids, gases, or solid cargo; in technical fields it describes closed containers such as tanks, pipes, or pressure chambers, while in maritime usage it identifies a water‑borne craft designed for navigation, emphasizing structural integrity, material suitability, and functional purpose.
Detailed information
A receptacle designed for the collection and storage of ticks, true bugs, lice, and fleas must accommodate the small size and delicate anatomy of these arthropods. Internal dimensions typically range from 1 cm³ to 10 cm³, providing sufficient space for individual specimens while minimizing excess volume that could compromise temperature stability.
Design features address ventilation, visibility, and containment. Transparent walls permit visual inspection without opening the unit, reducing disturbance. One‑way mesh or micro‑perforated lids allow gas exchange while preventing escape. Seals employ screw‑threaded caps or snap‑fit closures that maintain airtight conditions for long‑term preservation.
Material selection influences durability, chemical compatibility, and optical clarity. Common options include:
- Borosilicate glass – resistant to thermal shock, compatible with ethanol or glycerol.
- Polypropylene – lightweight, resistant to acids and bases, suitable for autoclaving.
- Stainless‑steel – robust, suitable for high‑temperature sterilization, limited transparency.
Labeling protocols require permanent, legible markings on the exterior surface. Information typically comprises collection date, geographic coordinates, host species, and identifier code. Ink or laser‑etched symbols ensure resistance to solvent exposure.
Preservation methods depend on downstream analysis. Immersion in 70 % ethanol provides rapid fixation and DNA preservation; cryogenic storage at –80 °C maintains viability for live‑culture studies. For morphological examination, mounting media such as Canada balsam preserve structural integrity while enhancing contrast.
Biosecurity considerations mandate secure sealing to prevent accidental release. Transport containers must comply with regulations outlined in «International Air Transport Association (IATA) Dangerous Goods Regulations», ensuring that pressure differentials do not compromise integrity. Decontamination procedures involve soaking in 10 % bleach solution followed by thorough rinsing before disposal or reuse.