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Durability of a chemical standard
Spetec supplies Inorganic Ventures' small packaged, liquid and certified standards in a sealed, specially developed TCT bag to extend shelf life up to 4 years. However, this is NOT identical with the expiration date!
Shelf life is the period of time that a properly packaged and stored standard will last without chemical or physical changes within the stated uncertainty margins.
The expiration date, on the other hand, is the recommended period of time within which a standard should be used after opening in a laboratory environment. This should never exceed 1 year.
The expiration date of an aqueous trace element standard depends on the following factors:
1. chemical stability of the standard
2. perspiration losses through container walls and the closure cap
3. the "human factor" in the use of the standard
In order to maintain the quality of a standard for as long as possible, Inorganic Ventures has eliminated point 1 and greatly reduced point 2 through internal testing.
Ultimately, the only uncontrollable risk factor for quality is the human being, who needs to be trained accordingly.
Spetec is looking forward to advising you, also with regard to peristaltic pumps and the appropriate tubing.
Custom-Built Peristaltic Pumps from Spetec
Spetec engineering offers products for the modern laboratory, such as tubing made to meet the most stringent specifications peristaltic- and syringe pumps more
Spetec was founded in Erding, Germany in 1987. The company began selling replacement parts for analytics. As requirements in analytics became stricter, Spetec started developing clean room technology. A broad range of clean room and laboratory technology products was developed over the ye ... more
