SI Analytics 52513 Ubbelohde Viscometer ASTM Normal Form 3C Capillary 285400542-Labcan Scientific

Product Description

SI Analytics 52513 Ubbelohde Viscometer, normal form ASTM (Part No.285400542) is a German-manufactured suspended-level glass capillary viscometer, designed for accurate determination of kinematic viscosity and intrinsic viscosity of transparent Newtonian fluids.

Fabricated from premium DURAN borosilicate glass, this ASTM standard Ubbelohde viscometer strictly follows ASTM D446 and ISO 3105 specifications. The 3C capillary offers a measuring range of 600–3000 cSt, suitable for medium-viscosity liquid samples.

The suspended-level structural feature enables measurement independent of filling volume, which brings outstanding repeatability, especially ideal for serial dilution tests of polymer solutions. Permanently etched timing ring marks support reliable manual timing measurement. It can be matched with thermostatic baths and SI Analytics automatic viscosity measuring instruments to satisfy routine laboratory quality control and academic research measurement requirements. Every viscometer is individually calibrated at factory and supplied with official calibration constant.

Precision hand-blown DURAN borosilicate glass construction delivers strong resistance to thermal shock and most common laboratory solvents. Standard ASTM normal-form configuration ensures consistent test results and complete data traceability to meet international testing specification requirements. The unique suspended-level design eliminates measurement deviations caused by inconsistent filling volume, greatly simplifying repeated dilution analysis for polymer research. Each viscometer undergoes separate calibration in Germany, with documented viscosity constant K for direct viscosity calculation. Optimized 3C capillary bore ensures stable laminar flow within 600–3000 cSt measuring interval. Clear permanent etched timing rings avoid abrasion and guarantee accurate reading in long-term usage. It supports both manual stopwatch measurement and automated detection with SI Analytics viscosity instruments, widely adopted in industrial QC laboratories, third-party testing institutions and university material research labs.

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Product Parameters

• in accordance with ISO 3105, ASTM D 2515, ASTM D 446 • filling quantity: 15 to 20 ml • overall length: approx. 285 mm

Specification	Details
Brand	SI Analytics (formerly Schott Instruments)
Model Code	52513
Article No. / Part Number	285400542
Product Type	Normal Form ASTM Ubbelohde Viscometer (Suspended-level Capillary Viscometer)
Capillary Size	3C
Viscosity Constant K	3 mm²/s²
Kinematic Viscosity Measuring Range	600 ~ 3000 mm²/s (cSt)
Recommended Minimum Flow Time	≥200 s
Required Sample Volume	15–20 mL
Compliance Standards	ASTM D446, ISO 3105
Applicable Samples	Transparent Newtonian liquids
Material	DURAN® Borosilicate Glass
Overall Length	approx. 285 mm
Factory Configuration	Individually factory calibrated, supplied with official viscosity constant K certificate
Compatible Equipment	Constant-temperature baths, ViscoClock plus, AVS series automatic viscosity measuring systems

Product Feature

• German-made DURAN borosilicate glass, excellent chemical & thermal stability

• ASTM normal form geometry, fully compliant with ASTM D446 and ISO 3105

• Suspended-level design, no volume influence for serial dilution experiments

• Capillary 3C, measuring range: 600–3000 cSt for medium-viscosity samples

• Individually factory calibrated, supplied with official constant K certificate

• Permanent etched timing marks for stable manual visual reading

• Compatible with manual timing and AVS / ViscoClock plus automatic systems

• Measurement data traceable, suitable for formal test reports

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SI Analytics 52513 Ubbelohde Viscometer, ASTM normal form, Capillary 3C, Part No.285400542. Measuring range 600–3000 cSt, complies with ASTM D446 & ISO 3105. Calibrated glass capillary viscometer for kinematic viscosity test of transparent Newtonian liquids.