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  • Qualitative Grade 1 Cellulose Filter Paper Equivalent to Whatman for Laboratory Use
  • Qualitative Grade 1 Cellulose Filter Paper Equivalent to Whatman for Laboratory Use
  • Qualitative Grade 1 Cellulose Filter Paper Equivalent to Whatman for Laboratory Use
  • Qualitative Grade 1 Cellulose Filter Paper Equivalent to Whatman for Laboratory Use
  • Qualitative Grade 1 Cellulose Filter Paper Equivalent to Whatman for Laboratory Use
  • Qualitative Grade 1 Cellulose Filter Paper Equivalent to Whatman for Laboratory Use
Qualitative Grade 1 Cellulose Filter Paper Equivalent to Whatman for Laboratory Use
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Qualitative Grade 1 Cellulose Filter Paper Equivalent to Whatman for Laboratory Use

$1.71-$3.69/ Pack|50 Pack/Packs(Min. Order)
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Qualitative Grade 1 Cellulose Filter Paper Equivalent to Whatman for Laboratory Use

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • High-Efficiency Filtration: Designed for qualitative analysis, enabling precise particle retention (Grade 1) and reliable separation of solids from liquids in laboratory settings.
  • Chemical Compatibility: Resistant to common solvents, acids, and bases, ensuring sample integrity during filtration processes.

Key features

  • 1. Advanced Material Technology

    • With high-purity cellulose composition, achieve contamination-free filtration equivalent to Whatman Grade 1 standards*, ensuring reliable results in sensitive laboratory applications.

  • 2. Universal Compatibility Design

    • With standardized size and porosity, seamlessly fit into common laboratory funnels and equipment, eliminating the need for custom setups compared to non-uniform alternatives*.

  • 3. Optimized Performance Parameters

    • With a balanced flow rate and particle retention (Grade 1 specification), deliver efficient filtration while maintaining sample integrity, outperforming lower-grade papers in precision*.

  • 4. Lab-Specific Scenario Solutions

    • With consistent performance under routine use, support analytical, gravimetric, and preparatory lab workflows, ideal for environments requiring repeated high-purity outcomes*.

  • 5. Certified Quality Assurance

    • With ISO and industry-recognized certifications, guarantee compliance with global laboratory standards, matching the reliability of premium brands like Whatman*.

Product details

Qualitative Grade 1 Cellulose Filter Paper Equivalent to Whatman for Laboratory Use

The Qualitative Grade 1 Cellulose Filter Paper is a high-performance laboratory filter designed to match the standards of Whatman equivalents. Engineered for precision filtration in analytical and preparative workflows, this paper combines durability with consistent pore structure to ensure reliable results in diverse applications.

Technical specifications

FeatureSpecificationApplication Scenario
Material100% alpha-celluloseAcid/alkali resistance in chemical analyses
GradeGrade 1 (slow flow, fine particles)Particle retention down to 1-5 µm
Pore Size18 µm ± 2 µmFiltration of fine suspensions
Thickness0.18 mmRoutine gravimetric analysis
CertificationISO 9001, ASTM D2986Compliance-driven laboratory protocols

Customization guide

Adjust pore size distribution or thickness parameters to meet specialized needs such as faster flow rates for high-throughput labs or enhanced chemical resistance for corrosive media.

Get inspired

Optimize your lab workflows with a filter paper that balances precision and versatility. Whether isolating micro-particles in pharmaceutical testing or clarifying solutions in environmental analysis, this Grade 1 filter delivers consistent performance.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Pore Size Consistency±5 µm variation±2 µm variation (+60%)±1 µm variation (+80%)
Thickness0.18 mm0.15 mm (faster flow)0.22 mm (high load)
Chemical ResistanceNeutral pH (4-9)pH 2-12 (enhanced)pH 1-13 (premium)

Supplier's note

  1. Technical Breakthroughs:

    • Pore Uniformity: ±1 µm variation in the Pro Model ensures 80% tighter particle retention than base models.
    • pH Range Expansion: The Advanced Model’s pH 2-12 tolerance accommodates 30% more aggressive chemicals than industry norms.
    • Durability: 40% higher tensile strength across all versions prevents tear risks during vacuum filtration.

  2. Version Selection Guide:

    • Base Model: Ideal for routine labs requiring cost-effective filtration of neutral pH samples (e.g., water quality testing).
    • Advanced Model: Preferred by academic researchers needing faster flow rates (+25% throughput) for organic solvent filtration.
    • Pro Model: Mandatory for industrial labs handling强corrosive media (e.g., acid digestion) or requiring ISO 17025-certified traceability.

With the Pro Model’s pH 1-13 resistance, you can safely process concentrated acids/bases while maintaining structural integrity. Pair its 0.22 mm thickness with vacuum systems to achieve 30% faster filtration than traditional glass fiber alternatives.

Frequently asked questions

  • Which Qualitative Grade 1 Cellulose Filter Paper is equivalent to Whatman for laboratory use?

  • What are the key differences between Qualitative and Quantitative Cellulose Filter Papers?

  • How should I store Qualitative Grade 1 Cellulose Filter Paper to maintain its integrity?

  • Is Qualitative Grade 1 Cellulose Filter Paper suitable for pH-sensitive applications?

  • Can Qualitative Grade 1 Cellulose Filter Paper be used for gravimetric analysis?

  • Does your Qualitative Grade 1 Filter Paper offer customization for bulk lab orders?

  • How does Qualitative Grade 1 Cellulose compare to glass fiber filters in durability?

  • What certifications does your Qualitative Grade 1 Cellulose Filter Paper hold?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Qualitative Grade 1 Filter PaperRoutine lab filtration, general usePore Size: 1.6 μm (Industry Standard) ▲1.4 μm (Our Advanced)
Flow Rate: 40 mL/min (ISO 695 compliant)		Cost-effective, sufficient for basic tasks
▲Improved retention in Advanced version		Lower precision vs quantitative grades
Not ideal for trace analysis
Quantitative Grade Filter PaperGravimetric analysis, precise measurementsPore Size: 1.2 μm (ISO 695)
Flow Rate: 30 mL/min (precision-focused)		High accuracy for critical tests
Consistent particle retention		Slower flow rate
Higher cost
Mixed-Phase Filter PaperEnvironmental testing, particle analysisPore Size: 1.8 μm (balanced)
Chemical Resistance: ASTM D543 (50+ exposures)		Fast flow with moderate retention
▲Enhanced chemical resistance in Advanced tier		Limited compatibility with aggressive chemicals
Glass Microfiber FiltersParticle counting, high-precision labsPore Size: 0.7 μm (ISO 695)
Ash Content: 0.01% (minimizes residue)		Ultra-fine filtration, low ash interferenceFragile structure
Expensive compared to cellulose papers
Membrane FiltersSterile filtration, microbiology labsPore Size: 0.2 μm (sterile-grade)
Flow Rate: 10 mL/min (precision control)		Sterile-grade filtration
Exact pore control for critical applications		Delicate material, prone to clogging
High cost
Ashless Filter PaperHigh-temperature ashing, residue-sensitive testsAsh Content: <0.01% (ASTM D2871)
Pore Size: 2.0 μm (robust structure)		Minimal residue in trace analysis
▲Improved durability in Advanced version		Lower mechanical strength vs standard grades

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The comparison data is based on manufacturer information and industry standards. Actual results may vary depending on individual use cases. It is advisable to verify details with the supplier for the most accurate information.