METTLER TOLEDO Filter Paper Weighing Solution with XP2U/XP6 Micro and Ultra-Micro Balances
| Brand | METTLER TOLEDO |
|---|---|
| Origin | Switzerland |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Filter Paper Weighing Solution |
| Pricing | Upon Request |
Overview
The METTLER TOLEDO Filter Paper Weighing Solution is an integrated, application-optimized weighing system engineered for gravimetric analysis of particulate matter collected on filter media—particularly in regulatory-compliant environmental monitoring, emissions testing, and occupational health applications. Built around the XP2U (2.1 µg readability) and XP6 (6 µg readability) ultra-micro and micro balances, this solution implements a holistic design philosophy centered on minimizing mechanical disturbance, thermal drift, and operator-induced variability during critical low-mass measurements. The system operates on the principle of electromagnetic force compensation (EMFC), delivering high reproducibility and long-term stability essential for trace-level mass determination (<0.1 mg). It is purpose-built for standardized test methods requiring strict adherence to ISO 12103-1 (road vehicle dust), EPA Method 5, ISO 10848, and EN 12341—where filter mass change before and after sampling must be quantified with sub-10 µg uncertainty.
Key Features
- Stainless steel draft shield with optimized geometry and low thermal conductivity—reduces air turbulence and minimizes convection-driven drift, enabling stabilization times under 3 seconds for standard filter handling.
- Motorized draft shield with programmable left/right automatic opening—eliminates manual contact, reduces electrostatic interference, and ensures repeatable access geometry across operators.
- Transparent top glass panel—enables real-time visual monitoring of filter placement and settling behavior without compromising environmental isolation.
- Dedicated precision weighing pan with centering alignment grooves—available in two diameters (Ø47 mm and Ø70 mm) to accommodate common quartz, PTFE, and glass-fiber filter formats; ensures consistent load positioning directly over the transducer’s optimal sensitivity zone.
- Ergonomic, anti-static tweezers with micro-textured tips—designed to grip filters firmly without deformation or fiber shedding; tip curvature matches standard filter edge radii to prevent slippage and lateral displacement during transfer.
Sample Compatibility & Compliance
The solution supports standard filter substrates including 47 mm and 70 mm diameter quartz fiber (e.g., QMA, QMB), cellulose ester, polytetrafluoroethylene (PTFE), and borosilicate glass microfiber filters. All components—including pans, tweezers, and shield hardware—are non-magnetic, corrosion-resistant, and compatible with laboratory cleaning protocols (e.g., solvent rinsing, low-temperature baking at ≤450 °C). The system conforms to GLP and GMP requirements through built-in balance diagnostics, calibration traceability to NIST standards, and optional audit trail functionality compliant with FDA 21 CFR Part 11 when paired with METTLER TOLEDO LabX software. It meets ISO/IEC 17025 criteria for measurement uncertainty estimation in accredited laboratories performing PM2.5, PM10, and diesel particulate matter (DPM) analysis.
Software & Data Management
When connected to METTLER TOLEDO LabX software, the weighing solution enables fully automated workflows: filter ID logging (via barcode or RFID), tare sequence execution, gross/net mass capture, delta-mass calculation, and report generation aligned with EPA QA/G-5 or ISO 17025 templates. LabX provides electronic signatures, user access control levels, and immutable audit trails—including timestamps, operator IDs, environmental parameters (optional humidity/temperature input), and balance status logs. Raw data export is supported in CSV, PDF, and XML formats for integration into LIMS or ELN platforms. All software modules are validated per IQ/OQ protocols and support periodic requalification documentation.
Applications
- Gravimetric quantification of airborne particulate matter in ambient air monitoring networks (e.g., US EPA FRM/FEM compliance).
- Tailpipe emission testing for light- and heavy-duty vehicles per UN ECE R83, SAE J1094, and China GB 18352.6.
- Workplace exposure assessment per OSHA Method ID-202 and NIOSH Method 0500.
- Filter efficiency testing of HVAC and respirator filtration media (ASTM F2299, ISO 16890).
- Pharmaceutical filter integrity validation where residual particulate loading must be verified post-sterilization.
FAQ
Which balance models are certified for use with this filter weighing solution?
The solution is validated for use exclusively with METTLER TOLEDO XP2U (2.1 µg readability) and XP6 (6 µg readability) balances—both equipped with SmartSens infrared sensor technology and internal motorized draft shields.
Can the system be used with non-standard filter sizes or shapes?
Only Ø47 mm and Ø70 mm circular filters are supported by the dedicated weighing pans. Custom pan geometries require engineering consultation and may affect metrological validity.
Is calibration verification required before each weighing session?
While daily adjustment using internal reference weights is recommended, full external calibration with traceable standards is mandated prior to any regulated reporting cycle—or following environmental excursions exceeding ±2 °C or ±5% RH.
Does the solution include environmental monitoring integration?
Yes—optional RS232/USB interfaces enable real-time synchronization of temperature and humidity data from external probes into LabX, enabling automatic correction of buoyancy effects per ISO 8655-5.
