Import Auto Burrette — Buy in Bulk from Supplier in India

Usr Exim supplies self-zeroing auto burettes designed for direct mounting on standard laboratory glass bottles, eliminating the need for manual zeroing between titrations. The burette incorporates a PTFE needle-valve stopcock for chemical resistance and drip control, an intermediate stopcock for intermediate filling operations, and rubber bellows to generate positive displacement without mouth pipetting hazards. The product is manufactured to Class A volumetric standards with ASTM E-287 compliance and meets USP specifications for pharmaceutical analytical work. Each unit is individually serialized and certified, with amber graduations applied against Schellbach backing for parallax-free meniscus reading.

Construction uses precision-bore borosilicate glass tubing calibrated To Deliver (TD) on computer-controlled calibration equipment. Class A tolerance for a 50 ml burette is typically ±0.05 ml, with 25 ml units at ±0.03 ml, though buyers should confirm the specific capacity offered by Usr Exim. The PTFE stopcock plug provides inert sealing against acids, bases and organic solvents that attack traditional glass or lubricated stopcocks. Schellbach stripes, formed by etching or white backing longitudinal lines, enhance meniscus visibility against dark or coloured solutions, a feature particularly valued in routine titrimetric analysis and quality control laboratories.

Primary users include pharmaceutical QC departments, university teaching laboratories, environmental testing facilities and industrial chemical analysis operations requiring traceable volumetric measurement. The self-zeroing design reduces analyst error and improves throughput in high-volume titration workflows. Buyers should confirm available capacities (10 ml, 25 ml and 50 ml being standard), whether the bottle is included or purchased separately, and the thread specification (typically GL45 or GL32) for bottle compatibility. Usr Exim operates from Bharuch, Gujarat, a chemical industry hub with established glass and laboratory supply manufacturing infrastructure.

Usr Exim is located at 118 Rut Complex, near Zadeshwar Crossing, Bharuch, Gujarat 392001, India. Bharuch sits within the Gujarat chemical corridor, providing logistical access to both domestic laboratory supply chains and international shipping via Kandla or Mundra ports. The supplier holds a harbour trust tier designation. No information is provided about year of establishment, manufacturing facility ownership, employee numbers, or annual turnover, and buyers should request these details directly to assess organisational scale and stability.

The supplier's response rate and average response hours are both recorded at zero in the available data, which reflects absence of captured interaction history rather than verified responsiveness. Buyers initiating contact should evaluate technical competency through sample requests and specification discussions. No certifications beyond the product-level ASTM E-287 and USP compliance are stated for the company itself, such as ISO 17025 for calibration laboratories or ISO 9001 for quality management. Verification of these, if required for institutional procurement, should be sought through direct documentation request rather than assumed from product claims.