ETN9310 Multi-Function Portable Water Sampling Kit

Overview

The ETN9310 Multi-Function Portable Water Sampling Kit is an engineered field solution for representative, depth-specific water collection in diverse aquatic environments—including rivers, lakes, reservoirs, estuaries, and wastewater treatment influent/effluent channels. Designed for compliance with standard sampling protocols (e.g., ISO 5667-3:2018, ASTM D3370-21), the system integrates two physically distinct yet functionally complementary sampling modules: a weighted bottle-type sampler for discrete depth sampling via rope deployment, and an adjustable telescopic handheld sampler for surface or shallow-water access. Both modules employ inert, chemically resistant borosilicate glass or food-grade HDPE sample containers to prevent analyte adsorption or leaching—critical for trace metal, nutrient, and organic contaminant analysis. The kit does not incorporate active pumping, pressure control, or onboard sensors; it operates on passive gravitational fill principles, ensuring mechanical simplicity, field robustness, and minimal maintenance.

Key Features

• Modular dual-sampler architecture: Includes one bottle-type sampler (1 L capacity, 20 m nylon-coated stainless steel rope with calibrated depth marker) and one telescopic handheld sampler (0.5 L / 1 L interchangeable bottles, 70–150 cm anodized aluminum handle with non-slip grip)
• Depth-resolved sampling capability: Bottle sampler enables precise vertical profiling at pre-determined depths without cross-contamination between strata
• Field-deployable ergonomics: Lightweight total system mass < 4.2 kg; all components nest within a reinforced polymer carry case with custom foam inserts and UV-stabilized labeling
• Material compatibility: Sample contact surfaces conform to USP Class VI and FDA 21 CFR 177.1520 standards for aqueous environmental matrices
• No power requirement: Fully manual operation ensures reliability in remote, off-grid, or low-infrastructure locations

Sample Compatibility & Compliance

The ETN9310 supports sampling of freshwater, brackish water, and treated wastewater within pH 4–10 and turbidity ≤ 500 NTU. It is validated for use with standard EPA Method 1664B (oil and grease), ISO 15587-1 (nutrient preservation), and APHA Standard Methods 2540D (total suspended solids). Sample integrity is maintained through amber glass vials (for light-sensitive analytes) or opaque HDPE (for metals per EPA Method 200.8). All components are compatible with common preservation agents (e.g., HNO₃ for metals, H₂SO₄ for nutrients, NaOH for cyanide). The kit meets GLP documentation requirements when used with chain-of-custody log sheets and time-stamped field notebooks.

Software & Data Management

As a manual, non-instrumented sampling platform, the ETN9310 does not include embedded firmware, Bluetooth connectivity, or proprietary software. However, it is fully interoperable with laboratory information management systems (LIMS) via standardized field data capture templates (e.g., CSV or Excel-based forms aligned with ISO/IEC 17025 Annex A.2). Optional accessories include QR-coded sample tube labels (pre-printed with batch ID, date, GPS-derived coordinates, and depth metadata) and a companion digital field log app (iOS/Android) supporting offline entry, photo timestamping, and encrypted export to institutional servers. Audit trails comply with 21 CFR Part 11 when paired with electronic signature-enabled platforms.

Applications

• Regulatory monitoring programs under national water quality directives (e.g., China’s GB 3838-2002, EU WFD 2000/60/EC)
• Baseline surveys for environmental impact assessments (EIA) and sediment-water interface studies
• Wastewater process control sampling at primary clarifiers, aeration basins, and final effluent points
• Academic limnology and hydrobiological research requiring stratified vertical profiles
• Emergency response sampling during chemical spills or algal bloom events

FAQ

Can the ETN9310 be used for seawater sampling?

Yes—both bottle and handheld samplers are constructed with marine-grade stainless steel hardware and corrosion-resistant polymers, validated for repeated use in salinities up to 35 ppt.
Is sterilization required between samples?

Sterilization is not mandatory for routine physicochemical analysis; however, for microbiological or molecular applications (e.g., DNA metabarcoding), autoclaving (121°C, 20 min) or 70% ethanol immersion is recommended per ISO 17994:2021.
Does the kit include sample preservation supplies?

No—preservation reagents, cold packs, and insulated transport containers are available as optional add-ons aligned with specific analytical method requirements.
What depth accuracy can be expected with the rope-based sampler?

Depth resolution is ±0.5 m when deployed from a fixed reference point using the integrated meter-marked rope and clinometer-assisted vertical alignment.
Are replacement bottles and ropes available separately?

Yes—genuine OEM spare parts (including certified calibration certificates for rope length verification) are stocked globally through authorized distribution partners.