Bottletop Burettes for SO2 and Acid-Base Titrations

Accurate titrations depend on precise volume delivery and the elimination of reading errors. In pulp and paper labs, where SO2 analyses and acid-base titrations are performed routinely, the quality of the burette directly affects the reliability of the results. Burettes that meet Class A standards provide the accuracy and repeatability these workflows require.

The Titrette® bottletop burette meets Class A accuracy standards and eliminates meniscus reading errors through its digital display. It is compatible with a broad range of reagents used in pulp and paper analyses, including NaOH, KOH, KI, H2SO4, KMnO4, and Iodine. Select models support direct data transmission to a PC. Available in 10 mL, 25 mL, and 50 mL configurations.

Consistent, accurate dispensing of laboratory reagents is fundamental to reliable analytical results. In environments where concentrated acids, bases, and solvents are handled daily, a bottle top dispenser must maintain chemical resistance without sacrificing volume accuracy. The ability to recirculate the reagent back to the reagent bottle also reduces waste and minimizes the risk of splashing during dispensing. For labs working with organic solvents, a dedicated solvent bottle dispenser rated for aggressive chemicals is essential.

The Dispensette® S bottletop dispenser is designed for use with most common laboratory reagent bottles. For labs working with concentrated acids and solvents, including nitric, hydrochloric, sulfuric, and trifluoroacetic acid, the Dispensette S Organic provides the necessary chemical compatibility. Both models are straightforward to clean and calibrate, and are available with an optional recirculation valve. For applications involving high-purity reagents or hydrofluoric acid, the Dispensette S Trace Analysis dispenser is available separately. Analog-adjustable models span volumes from 0.1 mL to 100 mL. Digital and fixed volume configurations are also offered.

Pipette Controllers for Volumetric Glassware

Volumetric work with serological and measuring pipettes requires controlled aspiration and dispensing. Reliable pipette controllers give the operator precise command over fill and dispense speed, supporting both rapid transfer and dropwise addition. A macro pipette controller compatible with a wide range of pipette sizes adds flexibility across different tasks.

The macro™ Pipette Controller operates with one-finger control and supports rapid or sensitive filling as well as fast or dropwise dispensing. This macropipette controller is compatible with most pipettes from 0.1 to 200 mL.

Single Channel Pipettes for Routine Lab Tasks

Accurate pipetting is central to sample preparation, dilution series, and reagent additions throughout the lab. Ergonomics matter in high-throughput environments where pipetting techniques are applied repeatedly over the course of a workday. Key factors in pipette selection include volume adjustment ease, stroke length, tip compatibility, and how well the instrument fits in the hand. An ergonomic pipette reduces strain during repetitive use.

The Transferpette® S single-channel pipette is an ergonomic pipette featuring thumb-tip volume adjustment that works even with gloves, a short stroke length to reduce repetitive strain, and a slim lower barrel that reaches the bottom of 15 mL conical tubes. It accepts tips from most major manufacturers. Available in capacities from 0.1 µL to 10 mL.

When the same volume needs to be dispensed multiple times in succession, a repeating pipette improves both speed and consistency compared to a standard pipette. This is particularly useful for distributing reagents across a series of tubes or preparing aliquots. Mechanical repeater pipettes offer simplicity and reliability, while electronic models add touchscreen control for added convenience.

The HandyStep® S repeating pipette is a mechanical repeater pipette designed for comfortable one-handed operation and compatible with third-party tips. The HandyStep touch and HandyStep touch S are electronic repeater pipettes with touchscreen operation and automatic tip size recognition for BRAND PD-Tip IIs, while also accepting third-party tips.

Plastic Labware for General Use

Plastic labware reduces the risk of breakage in active laboratory environments without sacrificing volumetric accuracy. For pulp and paper labs that require certified measurement vessels, Class A volumetric flasks and Class A graduated cylinders in plastic provide a durable alternative to glass. VITLAB plastic labware includes volumetric flasks, graduated cylinders, beakers, bottles, funnels, and scoops.

PFA Labware for Trace Analysis

Trace metal analysis requires labware that does not introduce contamination from the vessel itself. Materials must be resistant to both heat and chemical attack, and must not leach metals at any measurable level. PFA (perfluoroalkoxy alkane) labware meets these criteria, offering a non-reactive surface that simplifies cleaning between uses and supports the integrity of trace-level measurements. BRANDTECH PFA Trace Analysis labware is suitable for applications where standard plastic or volumetric flask glass alternatives may compromise results.