I'm not aware of any guideline stating that non-slit septa are a must in an regulated environment. And I don't know why the state of the HPLC is 

Some solvents that are commonly used for HPLC, UHPLC and GC experiments can impact the septa integrity. Temperature. If you need to place a capped sample vial 

•Vials, caps and septa are designed to work flawlessly with your autosampler's Aijiren CrossLab HPLC supports instruments from Aijiren Technology, Shimadzu, Dionex.

Septa are available in a variety of materials and thicknesses. PTFE Natural Rubber are moderately priced seals for GC and HPLC with good chemical properties 

We offer a variety of GC headspace vials, caps and septa to fulfil your application needs. Our patented vial and cap design incorporates pressure-relief 

Vial Type: Vial Material: Cap Type, Neck I.D. Size: Cap Color: Septa Material, Quantity Technology Type, Liquid Chromatography (LC).

Center Flash, Septa Insertion Chemical Test – HPLC Test – Non-volatile residue, GC Test – Volatile Residue LC Certified Vials are available with or without 

PTFE/Silicone septa are ideal for use in most HPLC and A = Recommended B = Suitable for most purposes C = Use with care D = Not advisable – = Not tested ...

SimPure Autosampler Vials with Writing Area and Graduations, 9-425 HPLC, Screw Cap, PTFE & Silicone Pre-Slit Septa, 2mL, 100 Pcs.

Caps, Septa · Cells · Chemicals / Standards · Column Storage Unit · Flash Chromatography GC Capillary Column · HPLC Columns · Instrument ... Dr. Maisch.

Screw caps PTFE/Silicone septa (pre slit) - Elsichrom the HPLC Specialist - ELSICHROM specializes in marketing second hand HPLC and other analytical 

The vials used for the preparation of breath samples for automated solid-phase microextraction–gas chromatography–mass spectrometry analysis are crimped 

Discussions about HPLC, CE, TLC, SFC, and other "liquid phase" separation techniques. 8 posts Page 1 of 1