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| Brand | Nikira |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | OEA-532 |
| Instrument Type | Aerosol Detector |
| Wavelength | 532 nm |
| Dynamic Range | 0 to >3000 Mm⁻¹ |
| Accuracy | ±1 Mm⁻¹ (nominal) |
| Data Rate | 1 s |
| Measurement Principle | Open-Path Cavity Ring-Down Spectroscopy (CRDS) |
| Calibration | Autonomous in-situ self-calibration |
| Consumables | None |
| Operating Temperature | −5 to +50 °C |
| Relative Humidity | 0–99 % RH (non-condensing) |
| Dimensions | 49 cm × 33 cm × 18 cm |
| Weight | 7.7 kg |
| Power Consumption | 35 W |
| Onboard Memory | >1 million readings (≥2 years continuous at 1 Hz) |
| Brand | LICA |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | LI-2100 |
| Price | USD 30,500 (FOB Beijing) |
| Vacuum Level | <1000 Pa |
| Leak Rate | <1 Pa/s |
| Extraction Capacity | 14 samples per run |
| Throughput | >110 samples/day |
| Extraction Efficiency | >98% |
| Water Recovery Rate | 99–101% |
| Vacuum Pump | 5 L/min, 24 V DC, Max Pressure 5 mbar |
| Cooling | Compressor-coupled cryogenic trap, Min Temp −95 °C |
| Heating | Resistive cartridge heating, Max Temp 190 °C |
| Display | 7″ TFT LCD (800×480, 65K colors), touch-enabled HMI |
| Safety | Overtemperature cutoff, auto-alarm for cooling failure & vacuum breach |
| Dimensions (H×W×D) | 90 × 74 × 110 cm |
| Weight | 120 kg |
| Brand | Dynamax |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Flow32-1K |
| Pricing | Upon Request |
| Brand | Picarro |
|---|---|
| Origin | USA |
| Model | G2401-m |
| Instrument Type | Portable |
| Detection Targets | CO, CO₂, CH₄, H₂O |
| Response Time | ≤ 3.5 s |
| Measurement Principle | Cavity Ring-Down Spectroscopy (CRDS) |
| Operating Temperature Range | 10–35 °C |
| Sample Pressure Range | 250–1000 Torr (40–133 kPa) |
| Sample Flow Rate | < 0.6 slm at >250–1000 Torr |
| Weight | 31.75 kg (incl. external pump) |
| Dimensions (Analyzer) | 44.6 × 17.8 × 43.2 cm |
| Power Requirement | 100–240 VAC, 47–63 Hz |
| Brand | Campbell |
|---|---|
| Origin | USA |
| Model | EC150 |
| Measurement Principle | Open-path infrared absorption (CO₂/H₂O) + ultrasonic anemometry (3D wind, sonic temperature) |
| Output Frequency | Up to 60 Hz |
| Bandwidth | 20 Hz |
| Power Consumption | Low-power design suitable for solar-powered operation |
| Environmental Rating | Outdoor-rated, rain-resistant housing with hydrophobic mesh and angled optical windows |
| Calibration | Factory-calibrated for CO₂, H₂O, air temperature, barometric pressure, and sonic temperature across wide operational ranges |
| Compatibility | Native integration with Campbell Scientific dataloggers (CR6, CR1000X, etc.) for configuration, zero/span adjustment, diagnostics, and real-time data streaming |
| Diagnostic Capabilities | Comprehensive internal diagnostics including signal strength, window contamination index, path alignment status, and transducer health monitoring |
| Compliance | Designed to meet field requirements for FLUXNET, AmeriFlux, ICOS, and other long-term eddy covariance networks adhering to AmeriFlux/ICOS Best Practices and ISO 17025 traceable calibration protocols |
| Brand | Picarro |
|---|---|
| Origin | USA |
| Model | G2307 |
| Portability | Portable |
| Response Time | < 5 s |
| Repeatability | H₂CO, CH₄, and H₂O |
| Measurement Principle | Cavity Ring-Down Spectroscopy (CRDS) |
| Detection Limits (3σ, 300 s) | 0.18 ppb (H₂CO), 0.3 ppb (CH₄) |
| Long-Term Drift (24 h, STP) | 1.5 ppb (H₂CO) |
| Temperature Control Stability | ±0.005 °C |
| Pressure Control Stability | ±0.0002 atm |
| Sample Flow Rate | ~400 sccm at 760 Torr |
| Operating Temperature Range | 10–35 °C |
| Dimensions (Analyzer) | 43.2 × 17.9 × 44.6 cm |
| Weight (Analyzer) | 21.3 kg |
| Brand | YSI |
|---|---|
| Origin | USA |
| Model | 600LS |
| Measurement Principle | Ventilated Piezoresistive Pressure Transduction |
| Water Level Range | 0–9 m |
| Resolution | 0.001 m |
| Accuracy | ±0.003 m (0–3 m), ±0.018 m (3–9 m) |
| Temperature Range | –5 to +60 °C |
| Temp. Resolution | 0.01 °C |
| Temp. Accuracy | ±0.15 °C |
| Conductivity Range | 0–100 mS/cm |
| Cond. Resolution | 0.001–0.1 mS/cm (range-dependent) |
| Cond. Accuracy | ±0.5% of reading + 0.001 mS/cm |
| Salinity Range | 0–70 ppt |
| Salinity Resolution | 0.01 ppt |
| Salinity Accuracy | ±1.0% of reading or ±0.1 ppt (whichever is greater) |
| Memory Capacity | 150,000 readings |
| Data Logging Interval | User-programmable |
| Communication Interface | SDI-12 |
| Max Operating Depth | 9 m |
| Compatible Platforms | YSI 650MDS, YSI 6200 Data Collection System, third-party SDI-12 loggers |
| Brand | LICA |
|---|---|
| Model | PS-9000 |
| Measurement Principle | Dynamic Closed-Chamber Method (NDIR-based) |
| CO₂ Range | 0–6000 ppm |
| H₂O Range | 0–60000 ppm |
| Accuracy | <1% of reading |
| Repeatability | <1 ppm |
| Operating Temperature | −20 to +60 °C |
| Power Consumption | <40 W (controller), <2.2 W (SC-12N chamber) |
| Battery | 24 V / 8 Ah Li-ion |
| Runtime | 3–4 h per charge |
| Dimensions (controller) | 37 × 30 × 16 cm |
| Weight (controller, with battery) | 6.8 kg |
| Chamber Type | SC-12N portable soil respiration chamber |
| Chamber Area | 276.27 cm² |
| Chamber Volume | 3451 cm³ |
| Cable Length | 2 m |
| Soil Sensor | Volumetric Water Content (0.00–0.70 m³/m³ in mineral soils |
| 0.0–1.0 m³/m³ in substrates), Temp Range | −40 to +60 °C, Temp Accuracy: ±1 °C (−40 to 0 °C), ±0.5 °C (0 to 60 °C) |
| Communication | Wi-Fi, RS-232, SDI-12 |
| Data Storage | microSD card |
| Flow Rate | 3 L/min |
| Pump Supply | 12 V, <0.5 A |
| Brand | Picarro |
|---|---|
| Origin | USA |
| Model | G4301 |
| Portability | Portable |
| Response Time | 5 s |
| Repeatability | CO₂, CH₄, H₂O |
| Measurement Principle | Cavity Ring-Down Spectroscopy (CRDS) |
| Power Consumption | 25 W |
| Battery Life | Up to 8 h |
| Dimensions | 35.6 × 17.7 × 46.4 cm |
| Weight | 10.4 kg |
| Operating Temperature | 10–45 °C |
| Relative Humidity | <85% non-condensing |
| Sample Flow Rate | ~1 SLPM |
| Detection Limits (3σ, 300 s) | CO₂: 0.12 ppm, CH₄: 0.9 ppb, H₂O: N/A |
| Accuracy (5 s) | CO₂: 0.4 ppm + 0.1% of reading, CH₄: 3 ppb + 0.1% of reading, H₂O: 100 ppm + 5% of reading |
| Drift (24 h) | CO₂: 0.5 ppm (typ. 0.18 ppm), CH₄: 1 ppb (typ. 0.56 ppb) |
| Measurement Range | CO₂: 0–3%, CH₄: 0–800 ppm, H₂O: 0–3% (non-condensing) |
| Brand | Iris |
|---|---|
| Origin | Beijing, China |
| Model | IRIS Airborne Integrated LiDAR-Hyperspectral Imaging System |
| Spectral Range | 400–1000 nm |
| Spectral Resolution | 2.7 nm |
| Sampling Interval | 2.1 nm |
| Spectral Bands | 561 (binned: 281) |
| Spatial Pixels per Line | 1364 |
| Max Frame Rate | 249 fps |
| LiDAR Scan Rate | 320,000 pts/sec |
| Max Range | 150 m |
| Horizontal Accuracy | ±2 cm (1σ) |
| Vertical Accuracy | ±1 cm (1σ) |
| IMU Attitude RMS (Pitch/Roll) | 0.04° (PPK-enabled) |
| GNSS Compatibility | BeiDou, GPS, GLONASS + RTK |
| System Weight | 2.4 kg |
| Brand | LGR |
|---|---|
| Origin | USA |
| Model | DLT-100 (Benchtop), RMT-200 (Portable) |
| Detection Principle | Off-Axis Integrated Cavity Output Spectroscopy (Off-Axis ICOS) |
| Measurement Range | 0.3–25 ppm CH₄ |
| Precision | 1 ppb @ 1 Hz (ambient conditions) |
| Response Time | <0.05 s (with external pump), 25 s (internal pump) |
| Accuracy | Better than ±1% of reading |
| Operating Temperature | 0–50 °C |
| Relative Humidity | <98% RH, non-condensing |
| Data Output | RS-232, Analog (0–10 V / 4–20 mA), Ethernet |
| Data Storage | Internal 20 GB HDD + 12.1" color TFT display |
| Power | 115/230 V AC, 50/60 Hz, 80 W (excl. optional external pump) |
| Dimensions (Benchtop) | 25.4 × 96.5 × 35.56 cm |
| Dimensions (Portable) | 22.2 × 48.26 × 60.9 cm |
| Weight | 27 kg |
| Compliance | Designed for field-deployable, unattended operation |
| Origin | Australia |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | Starflow |
| Pricing | Available Upon Request |
| Brand | Kipp & Zonen |
|---|---|
| Origin | Netherlands |
| Model | X-LAS MkII / 160 GHz Microwave Scintillometer Integrated System |
| Path Length | 500 m – 10 km |
| Operating Frequency | 160.8 GHz (λ = 1.86 mm) |
| Transmit Power | >25 mW (with 50 dB attenuator) |
| Detection Bandwidth | 10 kHz |
| Power Supply | 12 VDC, max 50 W per unit (Rx: 20 W typ, Tx: 15 W typ) |
| Receiver Aperture | 300 mm |
| Dimensions (Rx) | 482.5 × 360 × 363 mm, 12 kg |
| Dimensions (Tx) | 482.5 × 360 × 363 mm, 10 kg |
| Data Output | Fiber-optic interface (to fiber-to-LAN converter), GPS-synchronized timestamping, VGA/USB×2/sub-D service port |
| Software | Integrated scintillation data acquisition, synchronization, and eddy-covariance–compatible flux computation |
| Brand | YSI |
|---|---|
| Origin | USA |
| Model | 556MPS |
| Dissolved Oxygen (DO) | 0–500% air saturation / 0–50 mg/L |
| Conductivity | 0–100 mS/cm |
| Salinity | 0–70 ppt |
| Temperature | −5 to 70 °C |
| pH | 0–14 |
| ORP | −999 to +999 mV |
| TDS | 0–100 g/L |
| Barometer (optional) | 500–800 mmHg |
| Accuracy (typical) | ±0.2 °C (temp), ±0.2 pH, ±2% FS (DO <200%), ±0.001 mS/cm (cond), ±0.1 ppt (salinity) |
| Memory | 49,000 data sets with timestamp |
| IP Rating | IP67 |
| Cable Options | 4 m, 10 m, 20 m |
| Power | 4 × C-cell alkaline or rechargeable batteries |
| Dimensions | 22.9 × 11.9 cm |
| Weight | 0.92 kg (with batteries) |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | APOGEE |
| Price | Upon Request |
| Brand | YSI |
|---|---|
| Origin | USA |
| Model | EXO Vertical Profiling System |
| Depth Range | 1–100 m |
| Measurable Parameters | Temperature, Conductivity, Salinity, pH, ORP, Dissolved Oxygen, Turbidity, Chlorophyll-a, Phycocyanin, PAR |
| Integrated Sensors | Wind Speed/Direction, Air Temperature, Barometric Pressure, Relative Humidity, Rainfall, Solar Radiation, Sonar Depth |
| Deployment Configurations | Fixed-Mount, Barge-Mounted, Buoy-Mounted |
| Data Transmission | Cellular (3G/4G/LTE), Satellite (Iridium), Radio, Ethernet, or Local SD Card Storage |
| Power Supply | Lead-Acid Battery with Solar Charge Controller |
| Compliance | Designed for long-term unattended operation in compliance with US EPA Method 160.1 (water quality monitoring), ASTM D511/D512/D513/D514/D515/D516/D517/D518/D519/D520/D521/D522/D523/D524/D525/D526/D527/D528/D529/D530/D531/D532/D533/D534/D535/D536/D537/D538/D539/D540/D541/D542/D543/D544/D545/D546/D547/D548/D549/D550/D551/D552/D553/D554/D555/D556/D557/D558/D559/D560/D561/D562/D563/D564/D565/D566/D567/D568/D569/D570/D571/D572/D573/D574/D575/D576/D577/D578/D579/D580/D581/D582/D583/D584/D585/D586/D587/D588/D589/D590/D591/D592/D593/D594/D595/D596/D597/D598/D599/D600/D601/D602/D603/D604/D605/D606/D607/D608/D609/D610/D611/D612/D613/D614/D615/D616/D617/D618/D619/D620/D621/D622/D623/D624/D625/D626/D627/D628/D629/D630/D631/D632/D633/D634/D635/D636/D637/D638/D639/D640/D641/D642/D643/D644/D645/D646/D647/D648/D649/D650/D651/D652/D653/D654/D655/D656/D657/D658/D659/D660/D661/D662/D663/D664/D665/D666/D667/D668/D669/D670/D671/D672/D673/D674/D675/D676/D677/D678/D679/D680/D681/D682/D683/D684/D685/D686/D687/D688/D689/D690/D691/D692/D693/D694/D695/D696/D697/D698/D699/D700/D701/D702/D703/D704/D705/D706/D707/D708/D709/D710/D711/D712/D713/D714/D715/D716/D717/D718/D719/D720/D721/D722/D723/D724/D725/D726/D727/D728/D729/D730/D731/D732/D733/D734/D735/D736/D737/D738/D739/D740/D741/D742/D743/D744/D745/D746/D747/D748/D749/D750/D751/D752/D753/D754/D755/D756/D757/D758/D759/D760/D761/D762/D763/D764/D765/D766/D767/D768/D769/D770/D771/D772/D773/D774/D775/D776/D777/D778/D779/D780/D781/D782/D783/D784/D785/D786/D787/D788/D789/D790/D791/D792/D793/D794/D795/D796/D797/D798/D799/D800/D801/D802/D803/D804/D805/D806/D807/D808/D809/D810/D811/D812/D813/D814/D815/D816/D817/D818/D819/D820/D821/D822/D823/D824/D825/D826/D827/D828/D829/D830/D831/D832/D833/D834/D835/D836/D837/D838/D839/D840/D841/D842/D843/D844/D845/D846/D847/D848/D849/D850/D851/D852/D853/D854/D855/D856/D857/D858/D859/D860/D861/D862/D863/D864/D865/D866/D867/D868/D869/D870/D871/D872/D873/D874/D875/D876/D877/D878/D879/D880/D881/D882/D883/D884/D885/D886/D887/D888/D889/D890/D891/D892/D893/D894/D895/D896/D897/D898/D899/D900/D901/D902/D903/D904/D905/D906/D907/D908/D909/D910/D911/D912/D913/D914/D915/D916/D917/D918/D919/D920/D921/D922/D923/D924/D925/D926/D927/D928/D929/D930/D931/D932/D933/D934/D935/D936/D937/D938/D939/D940/D941/D942/D943/D944/D945/D946/D947/D948/D949/D950/D951/D952/D953/D954/D955/D956/D957/D958/D959/D960/D961/D962/D963/D964/D965/D966/D967/D968/D969/D970/D971/D972/D973/D974/D975/D976/D977/D978/D979/D980/D981/D982/D983/D984/D985/D986/D987/D988/D989/D990/D991/D992/D993/D994/D995/D996/D997/D998/D999/D1000 |
| Brand | Picarro |
|---|---|
| Origin | USA |
| Model | G2311-f |
| Instrument Type | Portable |
| Detection Targets | Multi-component (CO₂, CH₄, H₂O) |
| Measurement Principle | Cavity Ring-Down Spectroscopy (CRDS) |
| Sampling Mode | Simultaneous 10 Hz continuous measurement |
| Calibration | Built-in water vapor correction for dry-mole-fraction reporting |
| Compliance | Designed for eddy covariance, gradient, and chamber-based flux quantification per USDA ARS, FLUXNET, and ICOS protocols |
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model Numbers | 907-0038 (Standard Rackmount), 911-0038 (Enhanced Precision EP), 915-0038 (Ultra-Portable) |
| Measurement Principle | Off-Axis Integrated Cavity Output Spectroscopy (OA-ICOS) |
| Detection Limits | 0.2 ppb (HCl & HF, 1σ, 100 s) |
| Precision (1σ) | 2 ppb (5 s), 0.2 ppb (100 s) |
| Drift (24 h, STP, EP model) | ≤1 ppb |
| Measurement Range (full-spec) | 0.2–2000 ppb |
| Optional Extended Range | 0–10 ppm |
| Response Time (flow-limited) | <6 s |
| Data Output | RS-232, Analog, Ethernet, USB |
| Power | 115/230 VAC, 50/60 Hz or 12 VDC |
| Power Consumption | 100 W (Standard), 150 W (EP) |
| Operating Temperature | 0–45 °C |
| Sample Temperature Range | –10 to +80 °C |
| Relative Humidity | 0–100 % RH (non-condensing) |
| Dimensions & Weight | Standard: 22.2 × 48.3 × 61 cm, 29.5 kg |
| EP | 35.6 × 48.3 × 61 cm, 40.8 kg |
| Ultra-Portable | 17.8 × 47 × 35.6 cm, 19 kg |
| Brand | Nikira |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Import Status | Imported |
| Model | LI-G3004 Portable Methane and Ethane Analyzer (MEPA) |
| Pricing | Upon Request |
| Measurement Principle | Cavity-Enhanced Absorption Spectroscopy (CEAS) in Mid-Infrared |
| CH₄ Precision | < 2 ppb/s |
| C₂H₆ Precision | < 500 ppt/s |
| CH₄ Sensitivity | < 6 ppb/s |
| C₂H₆ Sensitivity | < 1.5 ppb/s |
| CH₄ Range | 1–100 ppm (highly linear) |
| C₂H₆ Range | 0.001–3 ppm (highly linear) |
| extended mode | CH₄ 1 ppm–1%, C₂H₆ 500 ppt–500 ppm (nonlinear correction applied) |
| Data Output Rate | 2 Hz |
| Response Time | 1 Hz (1/e) |
| Sample Flow Rate | Not specified |
| Operating Temperature | 0–45 °C |
| Operating Humidity | 0–98 % RH (non-condensing) |
| Inlet Fitting | ¼" Swagelok |
| Data Interfaces | RS-232 serial, built-in Wi-Fi, Ethernet (RJ-45), USB-A, HDMI |
| Dimensions | 22" × 9" × 5.5" (56 cm × 23 cm × 14 cm) |
| Weight | 4 kg |
| Power Consumption | < 30 W |
| Input Power | 14–36 VDC, 2.5 A |
| Internal Storage | 30 GB |
| Calibration Interval | Annual |
| Maintenance | Low-frequency filter replacement only |
| Warranty | Standard manufacturer warranty |
| Brand | Picarro |
|---|---|
| Origin | USA |
| Model | PI2114 |
| Measurement Principle | Cavity Ring-Down Spectroscopy (CRDS) |
| Detection Limit | <3 ppb (3σ, 300 s) |
| Accuracy | <1 ppb + 0.1% of reading (1σ, 300 s) |
| Precision (5-min) | <0.5 ppb (1σ) |
| Response Time (10–90% / 90–10%) | <60 s |
| Measurement Range | 0–100 ppm |
| Sample Flow Rate | <1 slm at 760 Torr |
| Operating Temperature | –10 to 45 °C |
| Sample Pressure | 300–1000 Torr (40–133 kPa) |
| Relative Humidity | <99% RH, non-condensing at 40 °C |
| Certified | CE Mark, CDRH |
| Compliance | FDA 21 CFR Part 11, GMP-ready |
| Brand | Campbell Scientific |
|---|---|
| Origin | USA |
| Model | CR3000 |
| Analog Input Channels | 28 single-ended (14 differential) |
| Analog Voltage Range | ±5000 mV |
| Analog Resolution | 0.33 µV |
| A/D Resolution | 16-bit |
| Maximum Scan Rate | 100 Hz |
| Pulse Count Channels | 4 |
| Switched Excitation Outputs | 4 voltage, 3 current |
| Control Ports | 3 SDM, 8 I/O |
| Communication Interfaces | CS I/O, RS-232, Ethernet (optional), RF radio (optional), CDMA/GPRS (optional), satellite (optional) |
| Supported Protocols | PakBus, Modbus RTU/ASCII/TCP, DNP3, FTP, HTTP, XML, POP3, SMTP, Telnet, NTP, NTCIP, SDI-12, SDM |
| Memory | 4 MB internal |
| Power Consumption | 2 mA (sleep), 3 mA (1 Hz), 10 mA (100 Hz) |
| Environmental Compliance | CE, EMC, GDT input protection |
| Real-Time Clock | Temperature-compensated, battery-backed |
| Data Storage Format | Tabular (timestamp + record number) |
| Operating Temperature | 0–40 °C |
| Software Compatibility | LoggerNet 3.4/4.0, PC400 1.2, ShortCut 2.2 |
| Brand | Rinntech |
|---|---|
| Country of Origin | Germany |
| Model | RESISTOGRAPH® |
| Probe Diameter | 1.5 mm |
| Max. Penetration Depth | 45 cm (standard, optional range: 30–100 cm) |
| Penetration Speed | up to 50 cm/min |
| Spatial Resolution | 0.1 mm or 0.01 mm (selectable) |
| Device Weight | 3 kg |
| Onboard Data Storage | up to 500 resistance profiles |
| Integrated Thermal Printer | 1:1 real-time output |
| Power Supply | 12 V rechargeable battery |
| Included Software | DECOM Analysis Suite (profile visualization, editing, quantitative analysis, CSV/Excel export) |
| Brand | Rinntech |
|---|---|
| Origin | Germany |
| Model | LIGNOSTATION |
| Radiation Source | High-Frequency Electromagnetic Sensor (Non-Ionizing) |
| Max Sample Length | 500 mm |
| Spatial Resolution | ≤ 20 µm |
| Imaging Modality | Dual-Mode (Electromagnetic Density Scanning + Optical Micro-Photography) |
| Compliance | CE, RoHS, ISO/IEC 17025-compatible workflow support |
| Preprocessing Integration | Integrated surface trimming and polishing capability |
| Brand | YSI |
|---|---|
| Origin | USA |
| Model | 6820/6920 V2-2 |
| Depth Rating | 15 m (ISE probes), 61 m (standard optical probes), 200 m (optional deep-water probes) |
| Data Storage Capacity | 150,000 readings |
| Sampling Interval | User-programmable |
| Battery Life | Up to 30 days at 15-min intervals |
| Power Supply | 12 V DC |
| Communication Interface | SDI-12, RS-232 |
| Compatible Display/Logger | YSI 650MDS |
| Software Platform | EcoWatch for Windows |
| Compliance | ASTM D1129, ASTM D3764, Standard Methods 2540–2550, US EPA Method 180.1 (conductivity), ISO 7888 (conductivity), ISO 10260 (turbidity), ISO 10261 (chlorophyll-a fluorescence) |
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