Closures N20 crimp, alu., silver, hole, Butyl/PTFE, light gr

Ready assembled crimp closures N 20 and plain crimp caps with no liner Closures available with a broad veriety of septa materials and different cap types / materials, incl. magnetic and bi-metal crimp caps For all autosamplers transporting vials by a magnet, incl. the CTC PAL autosampler, magnetic or bi-metal crimp closures N 20 should be used (702929, 702834) Aluminium pressure release caps allow controlled release of excess pressure higher than 3 bars Butyl / PTFE septa for routine analyses; for more demanding analyses and for high temperatures: high purity silicone / PTFE septa Molded Butyl/PTFE septa with an only centrically laminated PTFE layer for excellent sealing on the glass rims Pure grey Butyl stopper 702931 for uncritical analyses (e.g. blood) To be crimped with MACHEREY-NAGEL manual / electronic crimping tools N 20 Packed with 100 pieces in a resealable zip-lock bag Pre-crimped vial-closure combinations can be supplied as well For all closures, plain caps or replacement septa you can ask for a certificate of conformity (CoC) for your own ISO documentation.