TQC VF2032 ASTM/DIN/ISO Standard Viscosity Efflux Cups

Overview

The TQC VF2032 Viscosity Efflux Cup is a precision-engineered gravity-driven efflux viscometer designed for rapid, standardized kinematic viscosity assessment of low-to-medium viscosity Newtonian and near-Newtonian liquids—primarily coatings, inks, varnishes, lacquers, and thin polymer solutions. Operating on the fundamental principle of efflux time measurement—where fluid volume drains through a precisely dimensioned orifice under gravitational force—the VF2032 delivers repeatable, comparative viscosity data expressed in seconds (e.g., “Ford Cup seconds” or “DIN seconds”). Its design strictly adheres to internationally harmonized dimensional tolerances and procedural specifications defined in ASTM D1200 (Ford Cup), DIN 53211, and ISO 2431, ensuring cross-laboratory comparability and regulatory acceptability in QC/QA workflows across global manufacturing supply chains.

Key Features

• Manufactured in the Netherlands to TQC’s certified production protocol, each VF2032 cup carries a unique laser-engraved serial number for full traceability.
• Body constructed from high-strength, anodized aluminum-titanium alloy—offering optimal thermal stability, corrosion resistance, and dimensional integrity across ambient temperature fluctuations (15–30 °C).
• Interchangeable stainless steel orifice inserts (1 mm to 8 mm nominal diameter) enable method flexibility across viscosity ranges; orifices conform to ISO 2431 geometric tolerances (±0.01 mm diameter, ±0.02 mm length).
• Integrated stainless steel orifice locator ensures precise axial alignment and repeatable seating—critical for minimizing flow turbulence and orifice wear over repeated use.
• No internal coatings or surface treatments that could leach or interact with test fluids; all wetted surfaces are passivated 316 stainless steel or anodized non-reactive alloy.
• Compliant with ISO/IEC 17025 documentation requirements when used within validated laboratory procedures.

Sample Compatibility & Compliance

The VF2032 is intended for use with homogeneous, particle-free, low-sediment liquids exhibiting laminar, gravity-driven flow behavior. It is not suitable for shear-thinning, thixotropic, or highly viscous (>150 s efflux time per ASTM D1200) fluids. Validated applications include solvent-based and water-based architectural paints, automotive basecoats, gravure and flexographic inks, and clear lacquers. Regulatory alignment includes full conformance with ASTM D1200 (Section 6.1–6.4), DIN 53211 (Type A and B geometry), and ISO 2431:2015 (Clause 5: Dimensions, Clause 7: Calibration and Verification). Each cup ships with a Declaration of Conformity referencing EN ISO/IEC 17050-1 and supporting metrological traceability to Dutch NMi (Nederlands Meetinstituut) reference standards.

Software & Data Management

While the VF2032 is a manual efflux device requiring stopwatch timing, its output integrates seamlessly into digital QA systems. Efflux times may be entered directly into LIMS platforms (e.g., LabWare, STARLIMS) or TQC’s optional ViscoLog™ data capture module (sold separately), which supports automated unit conversion (e.g., seconds → cSt via ASTM D1200 conversion tables), statistical process control (SPC) charting, and audit-trail-enabled reporting compliant with FDA 21 CFR Part 11 when deployed with electronic signature configuration. All calibration records, orifice replacement logs, and user verification checks must be retained per GLP/GMP documentation protocols.

Applications

• Batch release testing of industrial coatings prior to canning or application.
• In-process viscosity monitoring during ink formulation and dilution in printing facilities.
• Supplier qualification audits where ASTM/DIN/ISO-compliant efflux data is contractually mandated.
• Correlation studies between efflux time and rotational viscometry (e.g., Brookfield LV measurements at 60 rpm) using empirical conversion models.
• Educational laboratories demonstrating Newtonian fluid behavior and standard test method execution per ISO/IEC 17025 training curricula.

FAQ

What standards does the VF2032 comply with?

ASTM D1200 (Ford Cup), DIN 53211 (Types A and B), and ISO 2431:2015 — including dimensional, material, and procedural requirements.
Are orifice inserts included with the cup?

No — stainless steel orifice inserts (1–8 mm) are optional accessories and must be ordered separately.
Can the VF2032 be used for non-Newtonian fluids?

It is not recommended; efflux time interpretation assumes constant shear rate and negligible elastic effects — valid only for Newtonian or near-Newtonian behavior.
How often should the orifice be cleaned or replaced?

Orifices must be inspected and ultrasonically cleaned before each use; replacement is required if bore diameter deviates beyond ±0.01 mm or shows visible pitting or deformation.
Is calibration certification provided?

Each unit includes a manufacturer’s Certificate of Conformance; accredited calibration certificates (e.g., ISO/IEC 17025) are available upon request through TQC’s NMi-accredited calibration service.