WHATMAN™ Grade 40 Quantitative Ashless Filter Paper – 12.5 cm (125 mm), 8 µm, Cat. No. 1440-125, Pack of 100
Product Overview
Whatman Grade 40 Quantitative Ashless Filter Paper 1440-125 is a high-purity, general-purpose filter paper designed for quantitative and gravimetric analysis. With a diameter of 125 mm (12.5 cm) and medium filtration speed, it provides reliable filtration while retaining particles down to approximately 8 µm.
The ashless construction makes it particularly suitable for analytical applications where low background contamination and accurate weighing of residues are important. The filter paper is made from high-quality cotton linters and has a maximum ash content of just 0.007%.
Key Features
- Brand: Whatman
- Grade: Grade 40
- Product Type: Quantitative Ashless Filter Paper
- Product Code: 1440-125
- Diameter: 125 mm / 12.5 cm
- Shape: Circular
- Pack Size: 100 pieces
- Particle Retention: Approximately 8 µm
- Thickness: 210 µm
- Basis Weight: 95 g/m²
- Ash Content: ≤ 0.007%
- Filtration Speed: Medium
- Herzberg Filtration Time: Approximately 340 seconds
- Material: High-quality cotton linters
- Application: Quantitative and gravimetric analysis
Applications
Whatman Grade 40 filter paper is suitable for a wide range of laboratory and analytical applications, including:
- Gravimetric analysis
- Soil analysis and separation of solid matter from aqueous extracts
- Milk sediment determination
- Sample preparation for instrumental analysis
- Clean-up filtration before Atomic Absorption (AA) spectrometry
- Analysis of cement, clay, iron and steel
- Air pollution monitoring
- Collection of trace elements and radionuclides
- General laboratory filtration where high-purity, ashless filtration is required
Why Choose Whatman Grade 40?
Grade 40 is a medium-retention, medium-speed ashless filter paper, making it a good choice when both filtration efficiency and analytical accuracy are required. Its very low ash content helps minimise interference during procedures where the filter residue is subsequently ignited and weighed.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Whatman |
| Grade | 40 |
| Part Number | 1440-125 |
| Filter Type | Quantitative / Ashless |
| Diameter | 125 mm (12.5 cm) |
| Shape | Circular |
| Quantity | 100 filters/pack |
| Particle Retention | 8 µm |
| Thickness | 210 µm |
| Basis Weight | 95 g/m² |
| Ash Content | ≤ 0.007% |
| Filtration Speed | Medium |
| Herzberg Speed | 340 s |
| Material | High-quality cotton linters |
Ideal For
Laboratories | Research Institutions | Educational Institutions | Environmental Testing | Soil Testing | Food & Dairy Testing | Cement & Mining Laboratories | Pharmaceutical Laboratories | Industrial Quality Control
Product Description for E-commerce
Buy Whatman Grade 40 Quantitative Ashless Filter Paper 12.5 cm (125 mm), Model 1440-125. Designed for accurate quantitative and gravimetric analysis, this high-purity filter paper offers approximately 8 µm particle retention, medium filtration speed and an exceptionally low ash content of ≤0.007%. It is suitable for soil analysis, milk sediment testing, sample preparation, gravimetric analysis, AA spectrometry sample clean-up and various industrial laboratory applications. Supplied as 100 circular filters per pack.
Search-Friendly Product Title
Whatman Grade 40 Quantitative Ashless Filter Paper 12.5 cm (125 mm) – 1440-125 – Pack of 100
Description
Product Overview
Whatman Grade 40 Quantitative Ashless Filter Paper 1440-125 is a high-purity, general-purpose filter paper designed for quantitative and gravimetric analysis. With a diameter of 125 mm (12.5 cm) and medium filtration speed, it provides reliable filtration while retaining particles down to approximately 8 µm.
The ashless construction makes it particularly suitable for analytical applications where low background contamination and accurate weighing of residues are important. The filter paper is made from high-quality cotton linters and has a maximum ash content of just 0.007%.
Key Features
- Brand: Whatman
- Grade: Grade 40
- Product Type: Quantitative Ashless Filter Paper
- Product Code: 1440-125
- Diameter: 125 mm / 12.5 cm
- Shape: Circular
- Pack Size: 100 pieces
- Particle Retention: Approximately 8 µm
- Thickness: 210 µm
- Basis Weight: 95 g/m²
- Ash Content: ≤ 0.007%
- Filtration Speed: Medium
- Herzberg Filtration Time: Approximately 340 seconds
- Material: High-quality cotton linters
- Application: Quantitative and gravimetric analysis
Applications
Whatman Grade 40 filter paper is suitable for a wide range of laboratory and analytical applications, including:
- Gravimetric analysis
- Soil analysis and separation of solid matter from aqueous extracts
- Milk sediment determination
- Sample preparation for instrumental analysis
- Clean-up filtration before Atomic Absorption (AA) spectrometry
- Analysis of cement, clay, iron and steel
- Air pollution monitoring
- Collection of trace elements and radionuclides
- General laboratory filtration where high-purity, ashless filtration is required
Why Choose Whatman Grade 40?
Grade 40 is a medium-retention, medium-speed ashless filter paper, making it a good choice when both filtration efficiency and analytical accuracy are required. Its very low ash content helps minimise interference during procedures where the filter residue is subsequently ignited and weighed.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Whatman |
| Grade | 40 |
| Part Number | 1440-125 |
| Filter Type | Quantitative / Ashless |
| Diameter | 125 mm (12.5 cm) |
| Shape | Circular |
| Quantity | 100 filters/pack |
| Particle Retention | 8 µm |
| Thickness | 210 µm |
| Basis Weight | 95 g/m² |
| Ash Content | ≤ 0.007% |
| Filtration Speed | Medium |
| Herzberg Speed | 340 s |
| Material | High-quality cotton linters |
Ideal For
Laboratories | Research Institutions | Educational Institutions | Environmental Testing | Soil Testing | Food & Dairy Testing | Cement & Mining Laboratories | Pharmaceutical Laboratories | Industrial Quality Control
Product Description for E-commerce
Buy Whatman Grade 40 Quantitative Ashless Filter Paper 12.5 cm (125 mm), Model 1440-125. Designed for accurate quantitative and gravimetric analysis, this high-purity filter paper offers approximately 8 µm particle retention, medium filtration speed and an exceptionally low ash content of ≤0.007%. It is suitable for soil analysis, milk sediment testing, sample preparation, gravimetric analysis, AA spectrometry sample clean-up and various industrial laboratory applications. Supplied as 100 circular filters per pack.
Search-Friendly Product Title
Whatman Grade 40 Quantitative Ashless Filter Paper 12.5 cm (125 mm) – 1440-125 – Pack of 100
Shipping Info
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National Deliveries (Within India)
- Rush Delivery: Less than 2 business days
- Express Delivery: 2 to 5 business days
- Standard Delivery: Greater than 5 business days.