Farvestoffer, pigmenter

The LABSOLUTE® stainless steel ground joint clamps have high mechanical stability. In contrast to POM clamps, they are almost completely temperature-resistant.

The colour-coded LABSOLUTE® ground joint clamps made of POM can be used up to a temperature of 140 °C. They are highly resistant to chemicals and have high mechanical stability.

For an easy and safe fixing of jointed glassware.

For use with ground glass joints. Suitable for vacuums up to 0.1mbar. Reusable and long lasting. The sealing ribs grip on the inside wall of the glass socket, sealing without the need for grease and enabling the cone to be freed easily when required.

With knurled gripping ring at the top of the cone for easy removal. For gas, liquid and vacuum-tight cone joint connections with sizes as outlined below. Reusable. With reinforced external ribs for a high-vacuum tight seal (leakage rate: < 1x10^-4mbar x I x s^-1). No joint sealant or grease required.

For use up to 10^-6 mbar. -50 to 200 °C.

Without silicone. Designed as vacuum and high vacuum grease. No silicone derivatives, polymerisation or gumming. Excellent adhesion and viscosity. Acid/alkaline resistant. Locked joints can be loosened by brief, gentle heating. Can be used to make temporary glassware repairs. Biodegradable. Non-toxic in normal use.

Chrome-nickel steel.

Seals without grease - no grease residues are left in the analysis. Excellent chemical resistance. Can be used in temperatures from -200 to 260°C. Wall thickness only 0.05mm. Wide range of applications, also suitable for vacuums down to 0.1mbar, e.g. for rotary evaporators.

For applications with very high temperatures. Easy to fit, dimensionally stable.

Melting point 175 °C. Excellent chemical resistance. Rigid. Heat resistant up to 150 °C, sizes colour coded.

Silicone-free stopcock grease. No silicone derivatives, polymerisation or gumming. Excellent adhesion and viscosity. Stable grease film enables safe, long term use. Low heat-up occurs during rotation even if operation is continuous. When sealing glassware systems with glass and metal stirrers and shafts Alsirol protects rotating, precision-ground sockets and stirring shafts against glass abrasion. Also suitable for lubricating rotating metal and glass components. Acid and alkali resistant. For use under vacuum and high vacuum. Biodegradable. Non-toxic in normal use.

For all glass joints. Transparent, vacuum tight, water washable and water soluble. Maintains practically the consistency between -30°C and 200°C, non-solidifying. Compatible with most elastomers. Tube of 80g.

• For tapered ground joints as outlined below
• With or without set screw

The sterile plastic funnels with 47 mm diameter allow quick performance of the filtrations required in the routine testing of water, food and beverages, pharmaceutical and cosmetic products. A Sartorius Stedim Biotech gridded membrane is placed on a stainless steel filter support and a Microsart^® Funnel is simply and practically fitted on and the sample is filtered by vacuum.

• Click-Fit closure for optimum sealing
• Graduation with markings for exact volume dosing

• Flexible jaws
• Excellent chemical resistance
• High mechanical strength

For covering areas which require protection against chemicals of all types at temperatures of -150 to 260°C. Non-swelling. Easy loosening of seams even after continuous operation. Supplied in rolls as outlined below.

Melting point 175 °C. Excellent chemical resistance. Rigid. Heat resistant up to 150 °C, sizes colour coded.

Outstanding chemical resistance at operating temperatures from -200 to 260 °C, only 50 µm thickness, the sleeves fit like a second skin without adding bulk, without grip collar, simplifying use of joint clips.

For conical ground joints.

POM. Will not scratch glass surfaces. Also suitable for use with sleeves with grip collar, due to adjustable jaw opening. Outstanding chemical resistance. Operating temperature up to approx. 150°C.

For cones and sockets to be used with springs for the safe connection of conical ground joints. No breakage of glass hooks.

Calibrated to contain (IN). With PE stopper and with scratched ring mark. DIN EN ISO 1042, including batch certificate and certificate of conformity.

Material: stainless steel. For spherical ground joint connections. With set screw.

Made of DURAN^® tubing. DIN 12264 and in addition to DIN standard.