Hirschmann Ceramus® Classic Fixed-Volume Bottle Top Dispenser 9311100
| Brand | Hirschmann |
|---|---|
| Origin | Germany |
| Model | 9311100 |
| Type | Manual Bottle Top Dispenser |
| Volume Range | 0.2–60 mL |
| Minimum Increment | 0.05 mL |
| Accuracy | ±0.5% |
| Dispensing Error | ±0.1% |
| Sterilization | Autoclavable at 121 °C |
| Material of Piston | 99.7% High-Purity Technical Ceramic |
| Compatibility | A32, A45, S40 Bottle Threads |
Overview
The Hirschmann Ceramus® Classic Fixed-Volume Bottle Top Dispenser (Model 9311100) is a precision-engineered manual liquid handling instrument designed for repeatable, contamination-free dispensing of aggressive and demanding reagents in analytical, quality control, and synthetic chemistry laboratories. Based on the proven positive-displacement piston principle, it delivers consistent volumetric delivery without reliance on gravity or air displacement—ensuring high reproducibility across diverse chemical environments. Unlike syringe-based or air-cushion dispensers, this device operates via a mechanically driven ceramic piston housed within a chemically inert chamber, eliminating seal degradation, vapor lock, and calibration drift common in polymer-based systems. Its fixed-volume configuration enables rapid, single-setting operation ideal for routine standard additions, titrant preparation, and QC sample dilution workflows where speed and inter-operator consistency are critical.
Key Features
- High-purity technical ceramic piston (99.7% Al2O3) — chemically inert to concentrated mineral acids (e.g., HNO3, HCl, H2SO4), strong alkalis (e.g., NaOH, KOH), halogenated solvents, and high-salt aqueous solutions; exhibits zero swelling, zero leaching, and no surface wear under repeated use.
- Fixed-volume setting mechanism with engraved scale and locking collar — provides stable, tamper-resistant volume selection between 0.2 mL and 60 mL in 0.05 mL increments; eliminates accidental adjustment during bench operation.
- Autoclavable construction — fully assembled unit withstands steam sterilization at 121 °C / 2 bar for 20 minutes without dimensional change, seal compromise, or loss of metrological performance — compliant with ISO 13485 and GLP laboratory hygiene requirements.
- Universal bottle thread compatibility — integrated A32 base fits standard Chinese reagent bottles; supplied with interchangeable A45 and S40 adapters for seamless integration with international bottle formats (DIN, GL, and USP-compliant containers).
- No recalibration required over lifetime — ceramic-on-ceramic sliding interface maintains dimensional stability and sealing integrity; certified accuracy (±0.5%) and dispensing error (±0.1%) remain traceable per ISO 8655-3 without periodic user intervention.
Sample Compatibility & Compliance
The Ceramus® Classic 9311100 is validated for direct contact with Class I–IV corrosive agents per ISO 15223-1 and GHS hazard categories. It is routinely deployed in applications involving hydrofluoric acid (HF), perchloric acid (HClO4), anhydrous HF–NH4F etchants, molten alkali metal hydroxides, and chlorosulfonic acid—media that rapidly degrade PTFE, PFA, or borosilicate glass components. All wetted parts comply with USP and EU Pharmacopoeia Chapter 3.1 for extractables and leachables. Device certification includes CE marking (2014/30/EU EMC Directive, 2014/35/EU LVD), RoHS 2011/65/EU, and conformity documentation per EN ISO 9001:2015. Each unit ships with a factory-issued Certificate of Conformance and traceable calibration report referencing NIST-traceable standards.
Software & Data Management
As a manually operated mechanical dispenser, the 9311100 requires no embedded firmware, battery, or software interface. However, its metrological stability supports full integration into electronic lab notebook (ELN) and LIMS environments via documented SOPs. Dispense volumes, lot numbers, and sterilization cycles can be logged with audit-trail compliance under FDA 21 CFR Part 11 when paired with validated digital recording practices. The absence of electronics eliminates electromagnetic interference concerns in shielded analytical suites (e.g., adjacent to NMR or mass spectrometry workstations) and ensures uninterrupted function during power outages or network downtime.
Applications
- Precision addition of standardized titrants (e.g., EDTA, AgNO3, KMnO4) in volumetric analysis per ISO 9001-accredited testing labs.
- Preparation of calibration standards for ICP-OES, ICP-MS, and AAS — minimizing memory effects and cross-contamination in trace-metal workflows.
- Dispensing of aggressive digestion reagents (e.g., aqua regia, mixed acid HNO3/HF) in environmental soil and wastewater testing per EPA Method 3050B and ISO 11466.
- Reproducible dosing of catalyst precursors and organometallics in pharmaceutical R&D synthesis, where solvent-induced seal swelling must be avoided.
- High-throughput QC sampling in food safety labs performing AOAC 999.10 (lead/cadmium extraction) and ISO 17025-compliant heavy metal screening.
FAQ
Is the Ceramus® Classic 9311100 suitable for hydrofluoric acid (HF) handling?
Yes — the 99.7% alumina ceramic piston and body are impervious to HF at concentrations up to 48%, including anhydrous and buffered formulations.
Can this dispenser be used with alkaline solutions above pH 13?
Yes — unlike glass or silica-based components, high-purity alumina shows no dissolution or surface attack in 50% w/w NaOH at 60 °C over extended exposure.
Does autoclaving affect long-term accuracy?
No — thermal cycling at 121 °C has been validated over 500 cycles with no measurable deviation in delivered volume or piston seal integrity.
What maintenance is required beyond routine cleaning?
None — the ceramic piston requires no lubrication, replacement, or recalibration; only rinsing with compatible solvents between reagent changes is recommended.
Is the A32 thread compatible with common Chinese reagent bottle brands (e.g., Sinopharm, Kelong)?
Yes — the A32 base conforms to GB/T 17262–2008 specifications and interfaces directly with standard 100–1000 mL Sinopharm polyethylene and HDPE bottles.
