N, NR (Cemented Needle, Rheodyne)
Needles are cemented into the glass syringe barrel at a point corresponding to the zero graduation mark. NR stands for syringes with Rheodyne specified needles.
LTN (Luer Tip Cemented Needle)
Needles are cemented into the conical glass luer tip of the barrel at a point corresponding to the zero graduation mark.
SN (Special Needle)
Hamilton offers customized syringes with special needles and state the following details: needle length, gauge, point style, and whether they are electro-tapered. Example of a correct specification: 701 SN, 70mm, gauge 25, point style 3, not electrotapered. Without these details the corresponding standard syringe 701 N will be supplied.
RN (Removable Needle)
Removable needles sit precisely to the zero graduation mark of the syringe. Allows the use of different specification needles on the same syringe barrel.
KH (Knurled Hub)
Knurled hub is used on 7000 Series syringes. The attachment of a spacer enables repeatable depth injections.
LT (Luer Tip)
Ground glass syringe barrel with a male luer taper accepts most hypodermic needles. Use Kel-F hub needles and connectors for a tight seal.
TLL, TLLX (PTFE Luer-Lock)
Male luer taper with nickel-plated brass hub accepts, and locks in place, luer hub needles and connectors. The X-style plunger stop incorporates a 6-32 UNC female thread on the end of the stop to allow the attachment to drive arm mechanisms, such as on the Microlab 500 Series diluters/dispensers.
SL (SampleLock)
On/Off syringe valve with RN needle is cemented to a syringe barrel. Used for headspace, environmental sample collection and storage, pre-pressurization of gaseous samples for GC analysis, and sample spiking.
FN (Fixed Needle)
Found on PALSystem C-Line and X-Type autosampler syringes.
C (ChemSeal)
1/4\'\'-28 UNF, male fitting. Used in low volume applications where system dead volumes need to be minimized.
