PFA Volumetric Flask – Semiconductor-Grade, Class A Transparent Fluoropolymer Labware
| Brand | Binzhenghong |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Direct Producer |
| Classification | Domestic |
| Capacity Range | 10 mL to 1000 mL |
| Pricing | Upon Request |
Overview
The Binzhenghong PFA Volumetric Flask is a Class A precision laboratory vessel engineered specifically for ultra-high-purity applications in semiconductor manufacturing, pharmaceutical R&D, and advanced analytical chemistry. Constructed entirely from perfluoroalkoxy alkane (PFA), this transparent fluoropolymer flask offers exceptional chemical inertness, thermal stability (–200 °C to +260 °C), and near-zero extractables—critical attributes when handling aggressive etchants (e.g., HF, BOE, piranha solutions), ultrapure solvents (e.g., sub-ppq-grade IPA, SC1/SC2 formulations), or trace-metal-sensitive standards. Unlike borosilicate glass or standard polypropylene alternatives, PFA exhibits no leachable ions (Na⁺, K⁺, Fe³⁺, Ni²⁺, Cr⁶⁺), making it compliant with SEMI F57 (specifications for high-purity quartz and fluoropolymer labware) and ASTM D4327 (ion chromatography sample preparation). Its optical clarity enables real-time meniscus observation during volumetric calibration, while its seamless, molded construction eliminates crevices where particulates or residual contaminants could accumulate.
Key Features
- Class A volumetric accuracy per ISO 1042 and ASTM E288—certified tolerances: ±0.02 mL (10 mL), ±0.08 mL (50 mL), ±0.30 mL (1000 mL)
- Full-body PFA construction (ASTM D4894-compliant), free of fillers, plasticizers, or mold-release agents
- Optically transparent with UV-VIS transmission >90% across 200–2500 nm—enabling spectrophotometric verification and visual meniscus alignment
- Chemical resistance validated against concentrated hydrofluoric acid (49%), nitric acid (70%), hydrogen peroxide (30%), and ammonium hydroxide (29%) at elevated temperatures
- Low particle generation: <1 particle/mL ≥0.5 µm (tested per ISO 14644-1 Class 5 cleanroom protocol after triple-rinsing with 18.2 MΩ·cm DI water)
- Trace metal content ≤10 pg/g for Al, Ca, Cr, Cu, Fe, K, Mg, Na, Ni, P, Si, Ti, Zn (ICP-MS certified)
- Autoclavable (121 °C, 20 min, 15 psi) and compatible with ozone cleaning cycles used in wafer fab tool qualification
Sample Compatibility & Compliance
These flasks are routinely deployed in Class 100 (ISO 5) and Class 10 (ISO 4) cleanrooms for preparing calibration standards for ICP-MS, TXRF, and SIMS analysis of silicon wafers and photomasks. They meet SEMI C1–C10 specifications for semiconductor process chemicals and are documented for use in USP water conductivity testing and EP 2.2.48 trace element analysis. Each lot undergoes full Certificate of Analysis (CoA) verification, including dimensional inspection, volume calibration traceable to NIM (China National Institute of Metrology), and extractables profiling via LC-MS/MS. The flasks are suitable for GLP/GMP environments requiring audit-ready documentation under FDA 21 CFR Part 11 and ISO/IEC 17025.
Software & Data Management
While the PFA volumetric flask itself is a passive, non-electronic device, its integration into digital lab workflows is supported through companion LIMS and ELN compatibility. Binzhenghong provides serialized lot traceability with QR-coded labels (GS1-compliant), enabling automated logging into electronic batch records. Calibration data—including temperature-corrected volume values at 20 °C, uncertainty budgets, and CoA metadata—is delivered in PDF/A-2 and CSV formats compatible with LabWare LIMS, Thermo Fisher SampleManager, and LabVantage platforms. All documentation adheres to ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available).
Applications
- Preparation of ppq-level dopant standards (e.g., B, P, As) for ion implantation process control
- Dilution of high-concentration photoresist developers and strippers prior to ICPOES analysis
- Standardization of reference materials for surface metal contamination mapping (e.g., Cu on Si wafers)
- Storage and dispensing of ultrapure rinse waters (UPW) for post-etch residue analysis
- Calibration of automated liquid handlers in semiconductor metrology labs (e.g., for thickness uniformity validation)
- Trace anion quantification (F⁻, Cl⁻, SO₄²⁻) in CMP slurries using ion chromatography
FAQ
Are these flasks certified to ISO 1042 Class A?
Yes—each capacity size is individually calibrated and certified to ISO 1042:2020 Class A tolerances, with calibration traceable to national metrology institutes.
Can they be used for hydrofluoric acid dilutions?
Yes—PFA demonstrates full resistance to HF across all concentrations and temperatures up to 120 °C; however, extended exposure above 80 °C requires validation per your SOP.
Do you provide lot-specific Certificates of Analysis?
Yes—every shipment includes a CoA listing trace metal content, particle count, UV transmittance, and volumetric calibration data.
Is autoclaving recommended for cleaning?
Autoclaving is permissible and validated; however, repeated cycles beyond 50 may affect long-term dimensional stability—refer to the included cleaning protocol.
How is volume calibration performed?
By gravimetric method using certified weights, Class A analytical balances (±0.01 mg), and temperature-controlled DI water (20.00 ±0.05 °C), following ISO/IEC 17025-accredited procedures.
