Description
Product Overview
The Millipore AP4004700 is a high‑performance glass fiber filter designed specifically for laboratory prefiltration and contamination analysis. Constructed from pure glass fibers without any binder resin, the filter maintains structural integrity even when exposed to temperatures as high as 550 °C (1,022 °F). Its 0.7 micron pore size provides precise retention of fine particles, making it ideal for applications that require accurate measurement of total suspended solids (TSS) and other particulate matter.
Each filter measures 47 mm in diameter and is calibrated to a water flow rate of 6 mL per minute per square centimeter, ensuring consistent throughput across a wide range of sample volumes. The AP40 designation indicates compliance with Standard Methods for the Examination of Water and Wastewater (2540D) for TSS testing, as well as suitability for the Toxicity Characteristic Leaching Procedure (TCLP) under USEPA method 1311. The pack contains 100 individual filters, providing ample supply for routine laboratory workflows and large‑scale studies.
Beyond its filtration capabilities, the AP4004700 offers versatility in sample preparation. The binder‑free composition allows the filter to be sterilized by ethylene oxide, gamma irradiation, or autoclave without compromising performance, which is essential for microbiological assays and other sterility‑critical processes. Its durability also supports gravimetric analysis of hot gases, where the filter can retain its shape and weight without degradation.
Packaging dimensions of 2.2 × 2.2 × 2 inches and a lightweight of 1.06 ounces per pack make storage and handling straightforward. The product’s best‑seller rank and positive customer feedback reflect its reliability and widespread adoption in industrial and scientific laboratories worldwide.
Usage
Laboratories conducting water quality assessments will find the AP4004700 indispensable for prefiltration steps prior to chemical or microbiological analysis. Its fine pore size captures suspended particles that could interfere with downstream assays, ensuring that results reflect true contaminant levels rather than artifacts caused by larger debris.
Environmental engineers performing total suspended solids measurements rely on the filter’s compliance with Standard Methods 2540D. By passing a known volume of water through the filter and measuring the retained mass, accurate TSS values are obtained, supporting regulatory reporting and pollution monitoring initiatives.
The filter’s compatibility with the Toxicity Characteristic Leaching Procedure (TCLP) makes it a valuable tool for hazardous waste characterization. Samples prepared with the AP4004700 can be subjected to leaching tests without risk of filter degradation, providing confidence in the integrity of the analytical results.
In addition to aqueous applications, the filter’s heat resistance enables its use in gravimetric analysis of hot gases, such as emissions testing in industrial settings. The ability to withstand temperatures up to 550 °C without weight loss ensures that collected particulates can be accurately quantified even under extreme conditions.
Why Choose Us
Choosing the Millipore AP4004700 means selecting a filter that combines scientific rigor with practical durability. Millipore’s long‑standing reputation for quality control guarantees that each filter meets strict performance specifications, reducing variability between batches and enhancing reproducibility of experimental data.
Our commitment to customer support extends beyond the point of sale. Technical assistance is available to help users integrate the filter into existing protocols, troubleshoot any issues, and optimize filtration parameters for specific sample matrices. This service ensures that laboratories can achieve their analytical goals efficiently.
Furthermore, the binder‑free construction not only improves thermal stability but also eliminates potential sources of chemical interference that can arise from resin residues. This purity is especially critical when analyzing trace contaminants or conducting sensitive bioassays where even minor contaminants could skew results.
Key Features
- 0.7 micron pore size delivers precise particle retention for accurate TSS and contamination analysis.
- Binder‑free glass fiber construction maintains structural integrity up to 550 °C, suitable for high‑temperature gravimetric work.
- Compliant with Standard Methods 2540D and EPA TCLP 1311, ensuring regulatory‑grade performance.
- Sterilizable by ethylene oxide, gamma irradiation, or autoclave, supporting sterile sample preparation.
- Pack of 100 filters provides cost‑effective supply for high‑throughput laboratory environments.
- Consistent water flow rate of 6 mL min⁻¹ cm⁻² enables reliable filtration across varied sample volumes.
- Lightweight, compact packaging simplifies storage and inventory management.
- Dedicated technical support and after‑sales service to assist with integration and troubleshooting.
FAQ
What types of samples can I filter with the AP4004700?
The filter is suitable for environmental water samples, wastewater, industrial effluents, and hot gas streams where fine particulate capture is required. It works well for both liquid and gaseous matrices, provided the temperature does not exceed 550 °C.
Can the filter be reused after sterilization?
No. The AP4004700 is intended for single‑use applications to prevent cross‑contamination. However, it can be sterilized before first use to meet aseptic requirements.
How does the binder‑free design benefit my analysis?
Without a binder resin, there is no risk of chemical leaching from the filter material, which could interfere with trace‑level analyses. The design also enhances thermal stability, allowing the filter to retain its shape and weight at high temperatures.
Is the filter compatible with standard filtration apparatus?
Yes. The 47 mm diameter matches common laboratory filter holders and vacuum manifolds, making it easy to integrate into existing workflows without the need for specialized equipment.
What support does Millipore provide if I encounter issues?
Our technical support team is available to answer questions about protocol optimization, troubleshoot performance concerns, and provide guidance on proper storage and handling to maximize filter lifespan.
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