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- General laboratory consumables
- Occupational safety, Security
- Analytical measurement and testing
- Stirring, Shaking, Mixing
- Sample preparation
- Distillation, separation, filtration
- Heating and cooling technology
- Liquid Handling
- Vacuum technology, Drying, Dry storage
- Optical instruments and Microscopes
- Cleaning and sterilisation
- Environmental-, soil-, water-, food analysis
- Chromatography
- Cleanroom
Vials, Septa
With silicone / PTFE septa
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....
Without septa
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....
Septa, 20 mm
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....
Vial racks, PP
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.
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With pure PTFE septa
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....
Without septa
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....
With silicone / aluminium septa
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....
22 x 9.1 mm, 4.3 mm centre hole
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....
Kit for titration according to Karl-Fischer
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....