Mühürler

The LABSOLUTE® conical gaskets made of grey natural rubber are the ideal seal between a filter flask and a Buchner funnel. The gaskets are available indiviually in eight different sizes with a bottom diameter between 12 - 66 mm or in a useful set.

The LABSOLUTE® conical gaskets made of grey natural rubber are the ideal seal between a filter flask and a Buchner funnel. The gaskets are available indiviually in eight different sizes with a bottom diameter between 12 - 66 mm or in a useful set.

The set consists of one gasket each with the following bottom diameters: 12, 17, 21, 27.5, 33, 48, 58 and 66 mm.

For GL-screwthread caps. Overall diameter and wad thickness as outlined below. Thermical resistance: 130°C (steam) / 200°C (heat). Autoclavable.

Silicone gasket (VMQ), PTFE coated. For screw caps made from PBT.

• Autoclavable
• Thermal resistance: max. 130°C (steam), 200°C (heat)

• With vulcanized PTFE sleeve
• For screwthread caps
• Thermical resistance: 130°C (steam), 200°C (heat)
• Autoclavable

For attaching flexible vacuum tubing to filter flasks. Consists of straight PP tubing connection, PP tubulature made of silicone (VMQ) rubber seal. PP components can withstand temperatures up to 140°C for short periods without mechanical load.

For use in dismountable filter holders.

The GLS 80^® quick release thread allows opening and closing of bottles with three-quarters of a turn. This closure contains dyestuffs. There is a lower risk of contamination due to the double-sided PTFE-coated silicone seal. The medium only comes in contact with PTFE. The matching pouring ring made of PTFE allows clean, drip-free working. Please order separately.

• Good mechanical stability
• High chemical resistance
• Autoclavable / suitable for hot-air sterilisation
• Tmax: 180°C

For fiiling gaps in water or air supply piping in cleanrooms

• Operating temperature limit: -100 °C ... 250 °C
• 1 g/m²

PC. Completely autoclavable. Used to carry tubes and containers under safe conditions. With silicone gasket and 4 sidelocks. Provided with a stainless steel handle and user sheet with instructions approved by WHO. With bio-hazard symbol printed on the box.

Conical rubber seals made of ethylene-propylene-diene rubber, for filtering flasks. Autoclavable.

For screw caps with bore, with bonded PTFE face.

Clear glass, with screw thread.

High quality ferrules made of 15% Graphite / 85% Vespel^®. Cat. No. 7.673 271 made of 100% Graphite.

BOD measurement is an important measurement of the effects of domestic and industrial waste water on sewage plants and outflow points. The sensor system BD 600 is a 6 sample system that allows precise measurements of BOD based on the manometric principle. Manometric respirometers relate oxygen uptake to the change in pressure caused by oxygen consumption while maintaining a constant volume. Due to the modern integral pressure sensors, it is not necessary to use mercury for the measurements. The BOD values are stored automatically in the sensor memory at regular intervals and can be called up on the large-format display at any time without the need for time-consuming conversion using factors. This means that test series that end on a Sunday can be evaluated during the following week without any problem. Measurement series can be stored on USB stick/ SD card or transferred via USB cable to evaluate the data on a computer. The measurement period is user-selectable between 1 and 28 days to suit the application. While short measurement periods are useful for scientific applications, standard BOD measurements typically extend over a period of 5 days - and manometric determination of OECD, for example, generally takes place over a period of 28 days.

Scope of supply:

• BD 600, complete unit with 6 or 12* sensor heads and control unit with batteries
• Power supply unit incl. Y-cable for common power supply of BD 600 and stirring unit
• Inductive stirring unit
• 6 or 12* sample bottles
• 6 or 12* rubber gaskets
• 6 or 12* magnetic stirring rods
• 1 overflow flask, 157 ml
• 1 overflow flask, 428 ml
• 1 bottle, 50 ml potassium hydroxide solution
• 1 bottle, 50 ml nitrification inhibitor solution
• 1 instruction manual
• remote control

Consisting of 8 conical rubber seals in sizes 22 to 84 mm, made of ethylene-propylene-diene rubber, for filtering flasks. Autoclavable.