Wire Loops
Calibrated and Non-Calibrated Loops
Choose from a wide range of accurately calibrated and non-calibrated Nickel-Chrome wire loops.
Ultra smooth - no gouging of agar
Copan NiChrome wire loops have totally smooth surfaces and will not cut or gouge through agar medium when streaking plate cultures.
Flexibility and rapid cooling
Loops are made of an 80/20 Nickel-Chrome metal wire. A strand of wire is molded around a specific pin size to form the loop shape and then the ends of wire strand are twisted together. The twisting process gives the loop its characteristic flexibility. Choice of 80/20 Nickel-Chrome means the loops have the properties of durability and rapid cooling following heat sterilization.
Durable and inexpensive
Designed to be durable and long lasting, Copan NiChrome loops last many weeks or months depending on the intensity of use. They cost less than traditional platinum-rhodium loops.
Calibrated Loops: 1µL and 10µL sizes
Two volumetric size loops are available, one micro-liter (1µL) and ten micro-liters (10µL), for performing quantitative specimen cultures such as urinalysis. Accuracy conforms to FDA Drill Bit Method. Loops are purchased individually and are supplied with a Certificate of Calibration.Calibrated Loops sold individually in tubes
Non-Calibrated Loops in four sizes
Non-Calibrated Loops are available in a range of sizes with internal diameters (Ø) of 2, 3, 4 or 5mm. Loops are supplied in tubes containing 25 loops.Non-Calibrated Loops sold in tubes containing 25 Loops.
Certificate of Calibration provided
Calibrated loops are purchased individually and supplied with a Certificate of Calibration.
Loop Handles – six and seven inch handle lengths
Copan supplies a choice of light weight Aluminum and heavier Nickel plated Brass handles. The shafts of the loop handles are insulated with PVC. Both Aluminum and Brass handles are available in a choice of sizes 6 inch (150mm) and 7 inch (175mm).
Combo-Loops (combined loop + handle)
A range of NiChrome wire loops attached to light weight insulated aluminum handles. Combo-loops are non-calibrated and available in a range of loop sizes 2, 3, 4 and 5mm internal diameter (Ø). Combo-Loop handles are color coded to facilitate easy size identification. They offer the convenience of a ready-to-use loop and handle combination. Like regular NiChrome loops, Combo-Loops are sterilized between use by using an incinerator or Bunsen flame. The whole unit is designed to be discarded when the wire loop eventually wears out.
Tool-Gauge verifies accuracy of Calibrated Loops
Continual heating and cooling of the NiChrome wire loop to sterilize between use means there is always a risk that the 1µL and 10µL calibrated loops can become distorted or there is an excessive build up of burnt organic material on the surface of the loop. Both conditions can significantly alter the liquid volume delivered by the loop and hence the accuracy. Copan offers a simple QC procedure for checking the accuracy of the loop using a GoNoGo tool gauge for both one and ten micro-liter loops.
At any time during the life of the loop the user can check and verify the accuracy using the simple tool gauge. The GoNoGo measuring gauge is very easy to check accuracy of the loop at any time and is based upon the FDA Drill Bit Method for checking the calibration of metal loops.