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CYTIVA WHATMAN

Cytiva Whatman, a brand with origins tracing back to the 18th-century English papermaker James Whatman, is a globally recognized manufacturer of filtration and separation products for laboratory and industrial applications. The brand, now part of Cytiva (a Danaher company), focuses on producing filter papers, membrane filters, syringe filters, glass microfiber filters, and pH indicator test strips. These products are designed for use in analytical chemistry, environmental monitoring, pharmaceutical quality control, and industrial process filtration. Key technical attributes include defined pore sizes (ranging from sub-micron to several microns), controlled thickness and porosity grades (e.g., medium, slow, fast), and material-specific constructions such as quantitative ashless, hardened low ash, and glass microfiber. Many products are available in sterile formats, with housing materials like polypropylene and filter materials such as polyethersulfone (PES) or mixed cellulose esters (MCE). Cytiva Whatman products are engineered to meet standardized specifications for particle retention, flow rate, and chemical compatibility, making them suitable for gravimetric analysis, sample preparation, and particulate removal. 3G Electric supplies a comprehensive range of Cytiva Whatman consumables, including over 200 SKUs, with detailed datasheets and logistics support for global procurement. The product line covers quantitative filter papers (e.g., Grades 40, 41, 52), glass microfiber filters (Grade C), sterile syringe filters (0.45 µm pore size), membrane filters (47 mm diameter, 0.45 µm), and pH test strips (0–14 pH range, with 0.5 or 1.0 pH resolution). These items are typically used in laboratory settings for filtration of aqueous and organic solvents, air monitoring, and pH measurement. 3G Electric ensures that each product is supplied with manufacturer part numbers (MPNs) and key specifications to facilitate direct replacement and compliance with standard operating procedures.

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About CYTIVA WHATMAN

Cytiva Whatman, a brand with origins tracing back to the 18th-century English papermaker James Whatman, is a globally recognized manufacturer of filtration and separation products for laboratory and industrial applications. The brand, now part of Cytiva (a Danaher company), focuses on producing filter papers, membrane filters, syringe filters, glass microfiber filters, and pH indicator test strips. These products are designed for use in analytical chemistry, environmental monitoring, pharmaceutical quality control, and industrial process filtration. Key technical attributes include defined pore sizes (ranging from sub-micron to several microns), controlled thickness and porosity grades (e.g., medium, slow, fast), and material-specific constructions such as quantitative ashless, hardened low ash, and glass microfiber. Many products are available in sterile formats, with housing materials like polypropylene and filter materials such as polyethersulfone (PES) or mixed cellulose esters (MCE). Cytiva Whatman products are engineered to meet standardized specifications for particle retention, flow rate, and chemical compatibility, making them suitable for gravimetric analysis, sample preparation, and particulate removal. 3G Electric supplies a comprehensive range of Cytiva Whatman consumables, including over 200 SKUs, with detailed datasheets and logistics support for global procurement. The product line covers quantitative filter papers (e.g., Grades 40, 41, 52), glass microfiber filters (Grade C), sterile syringe filters (0.45 µm pore size), membrane filters (47 mm diameter, 0.45 µm), and pH test strips (0–14 pH range, with 0.5 or 1.0 pH resolution). These items are typically used in laboratory settings for filtration of aqueous and organic solvents, air monitoring, and pH measurement. 3G Electric ensures that each product is supplied with manufacturer part numbers (MPNs) and key specifications to facilitate direct replacement and compliance with standard operating procedures.

Common Applications

  • Environmental monitoring — Cytiva Whatman Grade C glass microfiber filters for particulate air sampling
  • Pharmaceutical quality control — Cytiva Whatman sterile syringe filters (0.45 µm PES) for sample filtration
  • Gravimetric analysis — Cytiva Whatman quantitative ashless filter paper Grade 40 for precipitate weighing
  • Industrial water testing — Cytiva Whatman pH indicator test strips (0–14 range) for quick pH checks
  • Microbiological analysis — Cytiva Whatman sterile MCE membrane filters (47 mm, 0.45 µm) for colony counting
  • Chemical processing — Cytiva Whatman hardened low ash filter paper Grade 52 for vacuum filtration of aggressive solutions

Frequently asked questions

Common questions about CYTIVA WHATMAN from 3G Electric.

What are the key differences between Cytiva Whatman quantitative filter paper grades 40, 41, and 52?

Cytiva Whatman quantitative filter papers are classified by ash content, porosity, and particle retention. Grade 40 is an ashless paper (0.007% ash) with medium porosity and a 8 µm particle retention, suitable for gravimetric analysis. Grade 41 is also ashless but has a faster flow rate and a 20 µm retention, ideal for coarse precipitates. Grade 52 is a hardened low ash paper (0.015% ash) with medium porosity and a 7 µm retention, offering higher wet strength for vacuum filtration. All grades are available in various diameters and thicknesses, as listed in 3G Electric's catalog.

Are Cytiva Whatman sterile syringe filters compatible with organic solvents?

Cytiva Whatman sterile syringe filters with polyethersulfone (PES) membrane and polypropylene housing are compatible with a wide range of aqueous and organic solvents, including alcohols, esters, and ketones. However, they are not recommended for strong acids, bases, or halogenated hydrocarbons. For aggressive solvents, consider filters with PTFE membranes. The 0.45 µm pore size is suitable for sterilization and particulate removal. Always verify chemical compatibility with the manufacturer's data sheet before use.

What is the typical application for Cytiva Whatman Grade C glass microfiber filters?

Cytiva Whatman Grade C glass microfiber filters are designed for air monitoring, environmental sampling, and gravimetric analysis of particulate matter. With a 1.2 µm pore size and 0.26 mm thickness, they offer high loading capacity and low resistance to airflow. These filters are binder-free and can withstand temperatures up to 500°C, making them suitable for use in stack sampling and high-temperature filtration. They are commonly used in EPA methods for particulate collection.

How do I select the correct Cytiva Whatman pH test strip for my application?

Cytiva Whatman pH test strips are available in two resolutions: 1.0 pH (range 0–14) for general screening, and 0.5 pH (range 4.5–10) for more precise measurements. The 1.0 pH strips are suitable for quick checks in industrial water or waste streams, while the 0.5 pH strips are better for laboratory titrations or quality control where finer discrimination is needed. Both types are non-bleeding and provide colorimetric results within seconds. For extreme pH values outside 4.5–10, use the full-range strips.

Can Cytiva Whatman membrane filters be autoclaved?

Cytiva Whatman membrane filters made from mixed cellulose esters (MCE) are not autoclavable, as they degrade at high temperatures. However, they are supplied sterile (gamma-irradiated) for immediate use in microbiological analysis. For applications requiring in-house sterilization, consider filters made from polyethersulfone (PES) or polytetrafluoroethylene (PTFE), which can withstand autoclaving at 121°C. Always check the product specification sheet for sterilization compatibility.

Does 3G Electric supply CYTIVA WHATMAN products?

Yes — 3G Electric (S) Pte. Ltd. supplies CYTIVA WHATMAN products. We stock the CYTIVA WHATMAN catalog and supply genuine factory-original products with full manufacturer warranty and technical support.