Vials, Septa

The micro-inserts made of first hydrolytic class glass are suitable for

• Short thread vials ND9, with wide opening made of glass or plastic
• Screw neck vials ND10, with wide opening
• Crimp neck vials ND11, with wide opening
• Snap ring vials ND11, with wide opening
• Shell vials, with a nominal volume of 2 ml

Precision thread screw seals ND18 are made of metal and supplied with fitted septa made of a variety of materials. The hole size is selected so that the cap is suitable both for SPME and headspace applications. However, enough surface is left for the magnet to be able to transport a completely filled vial. The screw-on mechanism ensures that the cap always has a flat surface so that the bottle cannot fall from the magnet. Separation of the vial and cap for disposal after analysis is much easier than with crimp caps.

Closed caps in combination with precision thread screw vials ND18 are ideal for sample storage.

Precision thread screw seals are not suitable for item 7.616 139 !

Septa are temperature-resistant from -40 °C to 120 °C and have excellent chemical properties.

Short thread screw seals ND9 are made of PP and are supplied with fitted septa made of a variety of materials. They have a 6 mm centre hole and are available in different colours. The screw caps are similar in shape to the crimp caps and are therefore also suitable for robotic handling.

These septa are temperature-resistant from -40 °C to 120 °C and are ideal for multiple injections thanks to their excellent resealability properties.

The LABSOLUTE® kits ND8 contain shrink-wrapped screw vials ND8 with small opening made of clear or amber first hydrolytic class glass and corresponding screw caps made of PP. In some cases, caps are already pre-screwed on the vials.

• Many kits are especially adjusted for use with an autosampler of one defined manufacturer
• Kits with pre-screwed seals reduce the risk of sample contamination
• Kits with pre-assembled micro inserts are available on request

Screw seals ND15 are made of PP and are supplied without or with fitted septa made of a variety of materials. They have a 15-425 thread, a 9 mm centre hole or are closed.

Screw seals ND18 are made of PP and are supplied with or without fitted septa made of a variety of materials. They have a 18-400 thread, a 12 mm centre hole or are closed.

ND15 seals are suitable for items 7.616 898, 7.618 935, 7.616 655 and 7.618 936.
ND18 seals are suitable for items 7.616 899 and 7.616 139.

These ND18 screw caps with 18-400 thread are not compatible with ND18 precision thread vials !

These septa are temperature-resistant from -40 °C to 120 °C and have excellent chemical properties.

Screw seals ND13 are made of PP and have a 13-425 thread. They have a 8.5 mm centre hole or are closed. Screw seals are supplied with fitted septa made of a variety of materials or without any septa.

These septa are temperature-resistant from -40 °C to 120 °C and ideal for multiple injections thanks to their excellent resealability properties.

The shell vials made of clear or amber first hydrolytic class glass come in a set with transparent PE plugs. The star-shaped diaphragm in the plug facilitates easy penetration.

Shell vials made of plastic are a shatter-proof alternative to glass vials. They also come with a PE plug.

This easy-to-use, inexpensive vial/plug combination is suitable for non-critical analyses, especially in the field of HPLC.

Snap cap vials are made of clear third hydrolytic class glass. They are easy to handle and can be opened and sealed very quickly. Transparent PE caps come together with the vials packed in one handy box.

Snap ring seals ND11 are made of PE and are supplied with fitted septa made of a variety of materials. They are available in a soft and hard version as well as in different colours. Snap ring seals are very easy to use, time-saving and inexpensive.

These septa with instrument manufacturer's quality are temperature-resistant from -40 °C to 110 °C. They are easier to penetrate and have lower particle formation than septa made of natural rubber.

Screw seals ND20 are made of white PP and supplied with fitted septa made of a variety of materials. They have a 20-400 thread and are closed.

Suitable for screw neck vial 7.663 432.

The LABSOLUTE® kits ND24 contain shrink-wrapped screw vials ND24 made of clear or amber first hydrolytic class glass and corresponding screw caps made of PP.

Crimp seals ND8 are made of aluminium. They are plain lacquered with a 4 mm hole and supplied with fitted septa made of a variety of materials.

These septa are temperature-resistant from -40 °C to 120 °C and ideal for multiple injections thanks to their excellent resealability properties.

Screw seals ND13 are made of PP and have a 13-425 thread. They have a 8.5 mm centre hole or are closed. Screw seals are supplied with fitted septa made of a variety of materials or without any septa.

These septa are temperature-resistant from -60 °C to 200 °C and have better purity than septa made of natural rubber, butyl or RedRubber. However, they have less effective resealability properties and are therefore more suitable for single-injection applications.

Septa with a double-sided PTFE coating show a very low particle formation during penetration.

The choice of the right septa depends on the application. Many septa are PTFE coated on one side. PTFE is highly resistant against many chemicals and forms an inert border between the sample and the base material of the septa.

The septa's base material has various physical and chemical properties, like temperature resistance, resealability, cleanliness, hardness and thickness.

Natural rubber/TEF

• Temperature-resistant from -40 °C to 120 °C
• Excellent resealability properties
• Inexpensive for standard applications in the fields of GC and HPLC

• Temperature-resistant from -30 °C to 110 °C
• Softer and therefore easier to penetrate than natural rubber
• Not as good resealability properties as natural rubber
• Higher chemical purity than natural rubber
• Inexpensive for standard applications in the fields of GC and HPLC

• Temperature-resistant from -40 °C to 120 °C
• Higher chemical purity than natural rubber and RedRubber

• Temperature-resistant from -60 °C to 200 °C
• More suitable for single-injection applications
• Much higher chemical purity than natural rubber and RedRubber
• Very low particle formation during penetration in case of double-sided PTFE coating
• Best for the thin and fragile needles of the autosampler
• Best for critical analysis (UltraClean quality)

The LABSOLUTE® kits ND11 contain shrink-wrapped crimp neck vials ND11 made of clear or amber first hydrolytic class glass and corresponding crimp caps made of clear lacquered aluminum with 5.5 mm centre hole.
Septa with a double-sided PTFE coating show a very low particle formation during penetration.

Crimp and headspace seals ND20 are made of aluminium and are supplied with fitted septa made of a variety of materials. There are the following different types of caps available:

Plain caps with a 10 mm center hole. These caps are suitable for standard applications. They are available in several colours on request.

Clear lacquered caps, so called headspace caps, with a special score line that breaks when the internal pressure reaches 3.0 ± 0.5 bar. The excess pressure is then released, and the risk of the vial exploding can be avoided.

Clear lacquered centre tear-off caps and complete tear-off caps. These caps are available in several colours on request.

Gold lacquered, magnetic crimp caps with 5 mm centre hole to be used with CE HS500/HS800, CTC 500, as well as Fisons HS500 / HS800 instruments.

Gold lacquered, magnetic crimp caps with 8 mm centre hole to be used with CTC Combi PAL instruments.

Red lacquered, magnetic bimetal crimp caps with 8 mm centre hole to be used with CTC Combi PAL instruments.

These septa, made of silicone white / PTFE beige, are temperature-resistant from -60 °C to 200 °C. They are 3.2 mm thick and have a hardness of 45° shore A. They have better purity than septa made of natural rubber or red rubber. However, they have less effective resealability properties and are therefore more suitable for single-injection applications.

Due to their high cleanliness, they are especially used for critical and sensitive analysis.

These seals correspond to competitor HT liner!

Crimp and headspace seals ND20 are made of aluminium and are supplied with fitted septa made of a variety of materials. There are the following different types of caps available:

Plain caps with a 10 mm center hole. These caps are suitable for standard applications. They are available in several colours on request.

Clear lacquered caps, so called headspace caps, with a special score line that breaks when the internal pressure reaches 3.0 ± 0.5 bar. The excess pressure is then released, and the risk of the vial exploding can be avoided.

Clear lacquered centre tear-off caps and complete tear-off caps. These caps are available in several colours on request.

Gold lacquered, magnetic crimp caps with 5 mm centre hole to be used with CE HS500/HS800, CTC 500, as well as Fisons HS500 / HS800 instruments.

Gold lacquered, magnetic crimp caps with 8 mm centre hole to be used with CTC Combi PAL instruments.

Red lacquered, magnetic bimetal crimp caps with 8 mm centre hole to be used with CTC Combi PAL instruments.

These dark grey septa are temperature-resistant from -40 °C to 120 °C and have excellent chemical properties. They are 3.0 mm thick and have a hardness of 55° shore A. Because of the missing PTFE coating, the pure butyl septa are an economic alternative for non-critical analysis.

The choice of the right septa depends on the application. Many septa are PTFE coated on one side. PTFE is highly resistant against many chemicals and forms an inert border between the sample and the base material of the septa.

The septa's base material has various physical and chemical properties, like temperature resistance, resealability, cleanliness, hardness and thickness.

Natural rubber/TEF

• Temperature-resistant from -40 °C to 120 °C
• Excellent resealability properties
• Inexpensive for standard applications in the fields of GC and HPLC

• Temperature-resistant from -30 °C to 110 °C
• Softer and therefore easier to penetrate than natural rubber
• Not as good resealability properties as natural rubber
• Higher chemical purity than natural rubber
• Inexpensive for standard applications in the fields of GC and HPLC

• Temperature-resistant from -40 °C to 120 °C
• Higher chemical purity than natural rubber and RedRubber

• Temperature-resistant from -60 °C to 200 °C
• More suitable for single-injection applications
• Much higher chemical purity than natural rubber and RedRubber
• Very low particle formation during penetration in case of double-sided PTFE coating
• Best for the thin and fragile needles of the autosampler
• Best for critical analysis (UltraClean quality)

The septa are especially designed for the screw caps with GL thread.

Crimp and headspace seals ND20 are made of aluminium and are supplied with fitted septa made of a variety of materials. There are the following different types of caps available:

Plain caps with a 10 mm center hole. These caps are suitable for standard applications. They are available in several colours on request.

Clear lacquered caps, so called headspace caps, with a special score line that breaks when the internal pressure reaches 3.0 ± 0.5 bar. The excess pressure is then released, and the risk of the vial exploding can be avoided.

Clear lacquered centre tear-off caps and complete tear-off caps. These caps are available in several colours on request.

Gold lacquered, magnetic crimp caps with 5 mm centre hole to be used with CE HS500/HS800, CTC 500, as well as Fisons HS500 / HS800 instruments.

Gold lacquered, magnetic crimp caps with 8 mm centre hole to be used with CTC Combi PAL instruments.

Red lacquered, magnetic bimetal crimp caps with 8 mm centre hole to be used with CTC Combi PAL instruments.

Suitable septa with a diameter of 20 mm made of different materials are available on request.

Crimp neck vials and micro-vials ND8 are available in clear and amber first hydrolytic class glass. They can be sealed with 8 mm crimp caps, 9 mm PE caps or 8 mm push-on caps. The micro-vials often require an adapter so that they can be used in an autosampler.

These vials are especially used with autosamplers made by Beckman, CTC, Gilson, Knauer, Shimadzu, Spark, Varian and VWR/Hitachi.

Screw seals ND15 are made of PP and are supplied without or with fitted septa made of a variety of materials. They have a 15-425 thread, a 9 mm centre hole or are closed.

Screw seals ND18 are made of PP and are supplied with or without fitted septa made of a variety of materials. They have a 18-400 thread, a 12 mm centre hole or are closed.

ND15 seals are suitable for items 7.616 898, 7.618 935, 7.616 655 and 7.618 936.
ND18 seals are suitable for items 7.616 899 and 7.616 139.

These ND18 screw caps with 18-400 thread are not compatible with ND18 precision thread vials !

Suitable septa with a diameter of 16 mm (only for ND18 screw caps) made of different materials are available on request.

Crimp seals ND8 are made of aluminium. They are plain lacquered with a 4 mm hole and supplied with fitted septa made of a variety of materials.

These septa are temperature-resistant from -60 °C to 200 °C and have better purity than septa made of natural rubber or red rubber. However, they have less effective resealability properties and are therefore more suitable for single-injection applications. Septa with a double-sided PTFE coating show a very low particle formation during penetration.

The LABSOLUTE® vials for optimised micro-sampling are the best solution for very small sample volumes. The universally usable, so called vase vials with a residual volume of max. 15 µl can be tighly closed with the suitable LABSOLUTE® caps. All the vials are made of clear or amber first hydrolytic class glass. Because of their wide base, the vials stand independent and safe in almost every autosampler.

Further vials with ND8 or ND10 screw neck are available on request.

The stackable vial racks made of transparent acrylic or blue PP allow the easy handling and secure transport of sample vials.

Transparent acrylic allows the fill level of the sample vials to be easily checked. PP is not transparent, but more robust than acrylic.

Short thread screw seals ND9 are made of PP and are supplied with fitted septa made of a variety of materials. They have a 6 mm centre hole and are available in different colours. The screw caps are similar in shape to the crimp caps and are therefore also suitable for robotic handling.

These septa are temperature-resistant from -200 °C to 260 °C. They are very thin and hard and characterized by high analytical purity. However, they have less effective resealability properties and are therefore only suitable for single-injection applications.

Crimp and headspace seals ND20 are made of aluminium and are supplied with fitted septa made of a variety of materials. There are the following different types of caps available:

Plain caps with a 10 mm center hole. These caps are suitable for standard applications. They are available in several colours on request.

Clear lacquered caps, so called headspace caps, with a special score line that breaks when the internal pressure reaches 3.0 ± 0.5 bar. The excess pressure is then released, and the risk of the vial exploding can be avoided.

Clear lacquered centre tear-off caps and complete tear-off caps. These caps are available in several colours on request.

Gold lacquered, magnetic crimp caps with 5 mm centre hole to be used with CE HS500/HS800, CTC 500, as well as Fisons HS500 / HS800 instruments.

Gold lacquered, magnetic crimp caps with 8 mm centre hole to be used with CTC Combi PAL instruments.

Red lacquered, magnetic bimetal crimp caps with 8 mm centre hole to be used with CTC Combi PAL instruments.

These septa are temperature-resistant from -60 °C to 220 °C. They are 3.0 mm thick and have a hardness of 50° shore A. They have better purity than septa made of natural rubber or red rubber. However, they have less effective resealability properties and are therefore more suitable for single-injection applications. The silicone is fully coated with a silver aluminium foil and is often used on Perkin Elmer instruments.

Screw seals ND10 are made of PP and have a 10-425 thread. They have a 7 mm centre hole or are closed. Screw seals are supplied with fitted septa made of a variety of materials or without any septa.

Suitable septa with a diameter of 10 mm made of different materials are available on request.

These caps made of transparent PE are generally used to seal washing bottles of autosamplers, but also for intermediate closure when collecting samples out in the field. They are available in three different dimensions with several septa.

Suitable for the following vials:
7.612 175, 7.620 146, 7.621 813, 6.204 710, 7.620 148, 7.620 147, 7.612 926, 7.615 808, 7.616 552 and 7.616 883.

The LABSOLUTE® kit ND20 consists of crimp neck vials made of clear glass of the first hydrolytic class and corresponding aluminum crimp closures with an ultraclean septum made of silicone/PTFE. The special dimensions of the vials and the modification of the closures are perfectly adapted for the use with the Metrohm 774 & 874 Oven Sample Processor for the determination of the water content according to Karl-Fischer.

Crimp neck vials ND13 made of clear first hydrolytic class glass are special products which require a minimum order quantity.

2in1 KITs contain 100 vials (1.5 ml) and 100 closures in an orange PP-Box. As both components are always required at the same time, 2in1 KITs are a convenient way to obtain and store all required items for analysis. All advantages of the individual components (cleanroom packaging of the vials, recloseability of the packaging, etc.) remain unchanged.

Any other combination of vial and seal as a 2in1 KIT available.

Screw seals ND15 are made of PP and are supplied without or with fitted septa made of a variety of materials. They have a 15-425 thread, a 9 mm centre hole or are closed.

Screw seals ND18 are made of PP and are supplied with or without fitted septa made of a variety of materials. They have a 18-400 thread, a 12 mm centre hole or are closed.

ND15 seals are suitable for items 7.616 898, 7.618 935, 7.616 655 and 7.618 936.
ND18 seals are suitable for items 7.616 899 and 7.616 139.

These ND18 screw caps with 18-400 thread are not compatible with ND18 precision thread vials !

These septa are temperature-resistant from -60 °C to 200 °C and have better purity than septa made of natural rubber or red rubber. However, they have less effective resealability properties and are therefore more suitable for single-injection applications.

Crimp seals ND13 are made of aluminium. They are clear lacquered and have a 6 mm centre hole, a centre tear-off or complete tear-off. They are supplied with fitted septa made of a variety of materials.

The septa made of silicone white/PTFE red are temperature-resistant from -60 °C to 200 °C and have better purity than septa made of natural rubber, butyl or red rubber. However, they have less effective resealability properties and are therefore more suitable for single-injection applications.

The septa made of butyl red/PTFE grey are temperature-resistant from -40 °C to 120 °C and have excellent chemical properties with regard to cleanliness.

On Pharma-Fix seals, it is only the butyl areas that can come into contact with the sample, are PTFE coated. The areas that abut the edges of the glass are not coated. This ensures a particularly good seal.

The choice of the right septa depends on the application. Many septa are PTFE coated on one side. PTFE is highly resistant against many chemicals and forms an inert border between the sample and the base material of the septa.

The septa's base material has various physical and chemical properties, like temperature resistance, resealability, cleanliness, hardness and thickness.

Natural rubber/TEF

• Temperature-resistant from -40 °C to 120 °C
• Excellent resealability properties
• Inexpensive for standard applications in the fields of GC and HPLC

• Temperature-resistant from -30 °C to 110 °C
• Softer and therefore easier to penetrate than natural rubber
• Not as good resealability properties as natural rubber
• Higher chemical purity than natural rubber
• Inexpensive for standard applications in the fields of GC and HPLC

• Temperature-resistant from -40 °C to 120 °C
• Higher chemical purity than natural rubber and RedRubber

• Temperature-resistant from -60 °C to 200 °C
• More suitable for single-injection applications
• Much higher chemical purity than natural rubber and RedRubber
• Very low particle formation during penetration in case of double-sided PTFE coating
• Best for the thin and fragile needles of the autosampler
• Best for critical analysis (UltraClean quality)

The choice of the right septa depends on the application. Many septa are PTFE coated on one side. PTFE is highly resistant against many chemicals and forms an inert border between the sample and the base material of the septa.

The septa's base material has various physical and chemical properties, like temperature resistance, resealability, cleanliness, hardness and thickness.

Natural rubber/TEF

• Temperature-resistant from -40 °C to 120 °C
• Excellent resealability properties
• Inexpensive for standard applications in the fields of GC and HPLC

• Temperature-resistant from -30 °C to 110 °C
• Softer and therefore easier to penetrate than natural rubber
• Not as good resealability properties as natural rubber
• Higher chemical purity than natural rubber
• Inexpensive for standard applications in the fields of GC and HPLC

• Temperature-resistant from -40 °C to 120 °C
• Higher chemical purity than natural rubber and RedRubber

• Temperature-resistant from -60 °C to 200 °C
• More suitable for single-injection applications
• Much higher chemical purity than natural rubber and RedRubber
• Very low particle formation during penetration in case of double-sided PTFE coating
• Best for the thin and fragile needles of the autosampler
• Best for critical analysis (UltraClean quality)

All well plates made of PP and sealmats are fully chromatography tested. There are several advantages compared to usual vials and caps. Furthermore, the SBS/ANSI footprint assures compatibility with all well plate capable prep stations and chromatography autosamplers.

Well plates and sealmats are suitable for polar and non-polar solvents, in case of very critical analysis and very low sample concentrations.

• Space saving on the lab bench and when stored
• Faster sample preparation when multichannel pipettes are used
• Time saving because many different samples are prepared on one single plate

These caps made of transparent PE are generally used to seal washing bottles of autosamplers, but also for intermediate closure when collecting samples out in the field. They are available in three different dimensions with several septa.

Suitable for the following vials:
7.620 798, 7.615 908, 7.613 328 and 7.613 394.

These caps made of transparent PE are generally used to seal washing bottles of autosamplers, but also for intermediate closure when collecting samples out in the field. They are available in three different dimensions with several septa.

Suitable for the following vials:
7.612 175, 7.620 146, 7.621 813, 6.204 710, 7.620 148, 7.620 147, 7.612 926, 7.615 808, 7.616 552 and 7.616 883.

The LABSOLUTE® kits ND13 contain shrink-wrapped screw vials ND13 made of clear or amber first hydrolytic class glass and corresponding screw caps made of PP.

Septa with a double-sided PTFE coating show a very low particle formation during penetration.

Further kits are available on request.

The LABSOLUTE® kits ND11 contain shrink-wrapped snap ring vials ND11 made of clear or amber first hydrolytic class glass and corresponding snap caps made of PE with 6 mm centre hole.

All well plates made of PP and sealmats are fully chromatography tested. There are several advantages compared to usual vials and caps. Furthermore, the SBS/ANSI footprint assures compatibility with all well plate capable prep stations and chromatography autosamplers.

Well plates and sealmats are suitable for polar and non-polar solvents, in case of very critical analysis and very low sample concentrations.

• Space saving on the lab bench and when stored
• Faster sample preparation when multichannel pipettes are used
• Time saving because many different samples are prepared on one single plate

Crimp and headspace seals ND20 are made of aluminium and are supplied with fitted septa made of a variety of materials. There are the following different types of caps available:

Plain caps with a 10 mm center hole. These caps are suitable for standard applications. They are available in several colours on request.

Clear lacquered caps, so called headspace caps, with a special score line that breaks when the internal pressure reaches 3.0 ± 0.5 bar. The excess pressure is then released, and the risk of the vial exploding can be avoided.

Clear lacquered centre tear-off caps and complete tear-off caps. These caps are available in several colours on request.

Gold lacquered, magnetic crimp caps with 5 mm centre hole to be used with CE HS500/HS800, CTC 500, as well as Fisons HS500 / HS800 instruments.

Gold lacquered, magnetic crimp caps with 8 mm centre hole to be used with CTC Combi PAL instruments.

Red lacquered, magnetic bimetal crimp caps with 8 mm centre hole to be used with CTC Combi PAL instruments.

These septa made of red butyl and grey PTFE are temperature-resistant from -40 °C to 120 °C and have excellent chemical properties. They are 3.0 mm thick and have a hardness of 50° shore A.

Crimp and headspace seals ND20 are made of aluminium and are supplied with fitted septa made of a variety of materials. There are the following different types of caps available:

Plain caps with a 10 mm center hole. These caps are suitable for standard applications. They are available in several colours on request.

Clear lacquered caps, so called headspace caps, with a special score line that breaks when the internal pressure reaches 3.0 ± 0.5 bar. The excess pressure is then released, and the risk of the vial exploding can be avoided.

Clear lacquered centre tear-off caps and complete tear-off caps. These caps are available in several colours on request.

Gold lacquered, magnetic crimp caps with 5 mm centre hole to be used with CE HS500/HS800, CTC 500, as well as Fisons HS500 / HS800 instruments.

Gold lacquered, magnetic crimp caps with 8 mm centre hole to be used with CTC Combi PAL instruments.

Red lacquered, magnetic bimetal crimp caps with 8 mm centre hole to be used with CTC Combi PAL instruments.

Septa made from Viton with a hardness of 70° shore A and a thickness of 1.0 mm have a very high resistance against a wide range of solvents. These septa are highly recommended for use with chlorinated solvents.
Viton septa are not suitable for multiple injections or high injection speeds.

Further crimping heads are available on request.

The crimping and decapping tools feature a chemically resistant surface lacquer that has been developed especially for use in the laboratory. Additionally, the crimping tools have hardened closing jaws with a special alloy that guarantee a long service life. The crimping pressure and crimping height of the crimping tools can also be adapted to the design of the crimp neck and septal thickness.

Further decapping heads are available on request.

Electronic crimpers and decappers provide secure, reproducible crimps and quick and easy removal of aluminium seals. The tools can be used quite mobile because of the built-in rechargeable long life lithium ion battery. Ergonomic design and push button operation eliminates wrist strain especially at large sample series. Adjustable crimp settings make the crimping tool compatible with most vial/seal combinations. The adjusted crimping pressure can be seen easily at any time. A brush-less gear technology guarantees a longer lifetime and less particle emission.

• Vials can be crimped and decapped while they remain in the sample tray
• Tools can be used while recharging
• Universal 100 - 240 V charger included

Electronic crimpers and decappers provide secure, reproducible crimps and quick and easy removal of aluminium seals. The tools can be used quite mobile because of the built-in rechargeable long life lithium ion battery. Ergonomic design and push button operation eliminates wrist strain especially at large sample series. Adjustable crimp settings make the crimping tool compatible with most vial/seal combinations. The adjusted crimping pressure can be seen easily at any time. A brush-less gear technology guarantees a longer lifetime and less particle emission.

• Vials can be crimped and decapped while they remain in the sample tray
• Tools can be used while recharging
• Universal 100 - 240 V charger included

The GC septa are universal and longlife. They are delivered in resealable screw neck vials of 1^st hydrolytic class and ready-to-use. You have several advantages using our GC septa:

• Suitable for inlet temperatures up to 400 °C
• Low release of siloxanes
• Good penetration and sealing properties
• No sticking to hot surfaces