In the pharmaceutical industry, big bags and reactors are frequently used to store raw materials and live precursors. After the bags have been removed from the outer packaging, it is often difficult to determine if they are still sterile.
Identification using a barcode or affixed label is problematic, as the color and/or adhesive could diffuse through the foil and consequently contaminate the product.
Turck has developed special RFID tags which solve the problem. The tags are affixed to the big bag or bioreactor using special cable ties, and a handheld device enables the data to be read universally.