Biotex Life Science

Whatman Grade 50 quantitative hardened low ash filter paper is highly glazed to enable recrystallization of very fine precipitates using Büchner funnel or Hirsch funnel filtration.

This hard, very thin, high wet-strength Grade 50 quantitative filter paper withstands wet handling and precipitate removal by scraping. With very minimal fiber shedding, they are an especially good choice for use as carriers in integrated circuits.

• Thinner filter design (average thickness 115 µm) than most Büchner filter papers
• Nominal particle retention of 2.7 µm
• Slow flow rates (Herzberg filtration speed 2685 s)
• High purity and low ash content (0.015% ash maximum)
• Acid-treated for high wet-strength and chemical resistance
• Hardened to minimize fiber shredding

Whatman low ash hardened filter paper for quantitative analysis is available in three grades. All three are designed for use in gravity and vacuum suction filtration in Buchner and Hirsch funnels. Grade 50 is also available in Smear Tab format for wipe testing, such as surface testing for radionuclide contamination.

– High purity solvents and reagents with low level of impurities, conform to ISO, Pharma, ACS standard
– Suitable for laboratory and special analytical techniques

Synonym: 2-Butanone, Butanone, Ethyl methyl ketone, Methyl acetone, MEK

• Formula: C2H5OH,
• Boiling point: 78.37 °C,
• Molar mass: 46.07 g/mol,
• Density: 789 kg/m³
• Product description

  Ethanol is a chemical compound, a simple alcohol with the chemical formula C ₂H ₆O. Its formula can be also written as CH ₃−CH ₂−OH or C ₂H ₅OH, and is often abbreviated as EtOH. Ethanol is a volatile, flammable, colorless liquid with a slight characteristic odor.

Special Design

• The Luer attachment at the proximal end of the guiding cannula permits trouble-free insertion of inner catheter.
• The penetration depth and the direction can be set at the guiding cannula and at the inner catheter using two sliding rings.

Proven Design

• Atraumatic owing to the curved guiding cannula with a ball end, allowing the set to be used reliably even with difficult anatomic conditions.
• Metallic reinforced inner catheter shaft allows simple, safe handling.
• Two different lengths permit optimal adaption to different anatomies.
• Disposable product, double sterile packed.

Regulatory Standards

• Manufacturer certified as per ISO 9001 / 13485
• Class Iia according to Directive 93/42 EEC
• 510(K) approval from FDA
• To be used by trained personnel only

• High‑Resolution LCD Display – clear and easy to read 

• One‑Button Operation – simplifies testing process 

• Automatic Shut‑Off – conserves battery life

• Long Battery Life – suitable for frequent use

• Wide Measuring Range – accepts broad HbA1c levels 

• Internal Memory – stores past readings for trend analysis

• USB Data Connectivity – easy export to computer/mobile systems

• Multilingual Interface – supports various user preferences

• Calibration Reminder – prompts user to maintain accuracy 

• Portable Carrying Case – ensures safe transport

3004C – 3019C – General Purpose Glass Thermometer.

• With NABL Certificate.
• Available in Yellow and White Glass.
• Amber Printing.
• Available in Mercury Filled, Mercury Free & Alcohol.
• Individually packed in Plastic Case