Water & Environmental Testing
Reagents, standards and instruments for drinking water, effluent, ambient air and soil contamination analysis.
Environmental laboratories live inside IS 3025 and the CPCB consent conditions, and their results carry regulatory consequences. That makes reagent traceability and standard preparation the pressure points. A conductivity standard that is not certified at 25 °C, or an AAS standard supplied in the wrong acid matrix, produces a result that will not survive scrutiny. We supply against the parameter list rather than against a catalogue code.
Tests run here
- BOD, COD and total organic carbon
- Total hardness, alkalinity and chloride by titration
- Heavy metals by AAS and ICP
- Total and faecal coliform by membrane filtration
- Total suspended and dissolved solids
- Residual chlorine, fluoride and nitrate
- Jar test for coagulant dose optimisation
Governed by
- IS 3025 — Methods of sampling and test for water and wastewater
- IS 10500 — Drinking water specification
- CPCB and SPCB consent conditions
- NABL accreditation under ISO/IEC 17025
- culture-media
- filtration
- spectroscopy
- sample-preparation
What this sector draws on
COD Digestion Apparatus with Glassware
Reflux digestion block with condensers and glassware for chemical oxygen demand determination.
Ex-stockIS 3025 (Part 58)Positions: 6 or 8
Specification for COD Digestion Apparatus with Glassware
Specification for COD Digestion Apparatus with Glassware Positions 6 or 8 Temperature 150 °C ± 2 °C, digital control Timer Digital, 0–180 minutes with auto shut-off Glassware Borosilicate 3.3 flasks and Liebig condensers Services Installation & commissioning · Calibration · Annual maintenance contract · Spares & consumables Standards
IS 3025 (Part 58)Typical applications
- COD of industrial effluent, sewage and surface water
Full record, hazard data and enquiry for COD Digestion Apparatus with Glassware →
Jar Test Apparatus (Flocculator), Six Position
Six-paddle stirrer with synchronised speed control for optimising coagulant dose in water treatment.
Ex-stockASTM D2035Positions: 6
Specification for Jar Test Apparatus (Flocculator), Six Position
Specification for Jar Test Apparatus (Flocculator), Six Position Positions 6 Speed range 10–300 rpm, digital display Beakers 1000 ml or 2000 ml, with illuminated base Timer Digital with programmable rapid and slow mix stages Services Installation & commissioning · Calibration · Annual maintenance contract · Spares & consumables Standards
ASTM D2035Typical applications
- Coagulant and flocculant dose optimisation
- Water and effluent treatment plant control
Full record, hazard data and enquiry for Jar Test Apparatus (Flocculator), Six Position →
Total Organic Carbon Analyser, UV Oxidation with NDIR Detection
Total organic carbon analyser that oxidises the sample by UV and wet chemistry and measures the carbon dioxide released on a non-dispersive infrared detector, reporting TC, TIC, TOC and NPOC.
IndentDetection method: Wet chemical oxidation by UV
Specification for Total Organic Carbon Analyser, UV Oxidation with NDIR Detection
Specification for Total Organic Carbon Analyser, UV Oxidation with NDIR Detection Detection method Wet chemical oxidation by UV Detector NDIR (non-dispersive infrared) Measurement range 0-10000 mg/L (ppm) Detection limit 5 µg/L (ppb) Maximum salinity 85 g/L Particle size accepted ≤0.2 mm Repeatability tolerance 3% Analysis parameters TC, TIC, TOC, NPOC Sample type Liquid sample Gas requirement Nitrogen, purity ≥99.995% Control Computer control; PC software supplied on pen drive Software functions User management and permissions, sample registration, standard curve management, real-time peak display, measurement records, operation log export to Excel or PDF, electronic signature, consumable usage timers 9 further specifications on the full record.
Typical applications
- Waste water and effluent monitoring
- Source, surface and drinking water
- Cleaning validation swab and rinse samples
- Purified water and water for injection
- Process and cooling water in industry
Also known as
- TOC analyser
- Total organic carbon analyzer
- NDIR TOC analyser
- NPOC analyser
- Carbon analyser for water
Total Organic Carbon Analyser, UV Oxidation with Conductivity Detection
Reagent-free TOC analyser for high-purity water that oxidises carbon with a UV lamp and measures the resulting conductivity change, in an offline model and an online/offline model.
IndentMode, offline model / online model: Offline / online (exclusive for lab), online and offline switchable
Specification for Total Organic Carbon Analyser, UV Oxidation with Conductivity Detection
Specification for Total Organic Carbon Analyser, UV Oxidation with Conductivity Detection Mode, offline model / online model Offline / online (exclusive for lab), online and offline switchable Detector Conductivity detector Oxidation UV lamp; no acid, gas or catalyst required Detection range (as printed) 0.001-1.500 mg/l (ppm) Measurement range (as printed) 1 µg/L - 1000 µg/L Detection limit 1 ppb Max tolerance ±5% Repeatability tolerance ±3% Analysis time < 3 min Response time < 10 min Sample temperature 1-95°C Environment temperature 10-40°C with temperature change ±5°C/day 9 further specifications on the full record.
Typical applications
- Purified water and water for injection release testing
- Microelectronics and ultrapure water monitoring
- Cleaning validation rinse water
- Distribution loop monitoring (online model)
Also known as
- TOC analyser
- Conductivity TOC analyser
- Purified water TOC analyser
- WFI TOC analyser
- Online TOC analyser
COD Analyser with 21-Position Digestor
Chemical oxygen demand analyser supplied with a 21-place digestor block, reading COD colorimetrically over two ranges after a two-hour dichromate digestion.
IndentMeasuring ranges: (15~150) mg/L, (150~1500) mg/L
Specification for COD Analyser with 21-Position Digestor
Specification for COD Analyser with 21-Position Digestor Measuring ranges (15~150) mg/L, (150~1500) mg/L Light source Two LED light sources, one for each COD testing range Accuracy ±5% Repeatability ±3% Fluctuation ± 6 mg/L (20 min) Calibration 2 points Display LCD Data Stores 200 sets of measuring data, following GLP norm Interface USB, data transferable to a computer Analyser power supply Adaptor, using AC 220V, 50/60Hz Digestor capacity 21 samples at a time Digestor temperature range 0-165°C 8 further specifications on the full record.
Typical applications
- Water and waste water analysis
- Effluent treatment plant monitoring
- Coking, papermaking and petrochemical process water
- Textile printing, leather and food processing effluent
- Pharmaceutical effluent monitoring
Also known as
- COD meter
- COD analyzer
- Chemical oxygen demand analyser
- COD reactor and photometer
- COD digestor
Full record, hazard data and enquiry for COD Analyser with 21-Position Digestor →
AAS Single-Element Standard Solutions, 1000 ppm
Single-element atomic absorption standards at 1000 mg/L in the correct acid matrix, with traceable certificate.
IndentAR100 ml · 500 ml
Specification for AAS Single-Element Standard Solutions, 1000 ppm
Specification for AAS Single-Element Standard Solutions, 1000 ppm Pack sizes 100 ml · 500 ml Grades offered
ARTypical applications
- Calibration of flame and graphite furnace AAS
- Spike recovery and method validation
Full record, hazard data and enquiry for AAS Single-Element Standard Solutions, 1000 ppm →
ICP Standard Solutions — Single & Multi-Element
Single and multi-element ICP-OES and ICP-MS standards, prepared gravimetrically with certified traceability.
IndentARULTRAPURE100 ml · 500 ml
Specification for ICP Standard Solutions — Single & Multi-Element
Specification for ICP Standard Solutions — Single & Multi-Element Pack sizes 100 ml · 500 ml Grades offered
ARULTRAPURETypical applications
- ICP-OES and ICP-MS calibration
- Internal standard preparation
- Interference check solutions
Full record, hazard data and enquiry for ICP Standard Solutions — Single & Multi-Element →
Conductivity Standard Solutions
Potassium chloride conductivity standards at 84 µS/cm, 1413 µS/cm and 12.88 mS/cm, certified at 25 °C.
Ex-stockAR500 ml · Sachets — pack of 20
Specification for Conductivity Standard Solutions
Specification for Conductivity Standard Solutions Pack sizes 500 ml · Sachets — pack of 20 Grades offered
ARTypical applications
- Conductivity meter and cell constant calibration
- TDS meter verification
- Purified water system verification
Full record, hazard data and enquiry for Conductivity Standard Solutions →
Acetate Buffer Solution Ph 4.6
Offered in Extra Pure grade. Listed in a 500 ml pack.
IndentEXTRA PURE500 ml
Specification for Acetate Buffer Solution Ph 4.6
Specification for Acetate Buffer Solution Ph 4.6 Pack sizes 500 ml HSN code 38229090 Grades offered
EXTRA PUREFull record, hazard data and enquiry for Acetate Buffer Solution Ph 4.6 →
Buffer Solution Ph 1.0
Offered in Extra Pure grade. Listed in 2 pack sizes from 500 ml to 1000 ml.
IndentEXTRA PURE500 ml · 1000 ml
Specification for Buffer Solution Ph 1.0
Specification for Buffer Solution Ph 1.0 Pack sizes 500 ml · 1000 ml HSN code 38229090 Transport UN1789 Grades offered
EXTRA PUREFull record, hazard data and enquiry for Buffer Solution Ph 1.0 →
Sodium Hydroxide Volumetric Solution 0.1 N
CAS 1310-73-2Ready-standardised 0.1 N sodium hydroxide with the batch factor printed and dated. Also supplied at 0.5 N and 1 N.
NaOH
Ex-stockAR500 ml · 1 L · 2.5 L
Specification for Sodium Hydroxide Volumetric Solution 0.1 N
Specification for Sodium Hydroxide Volumetric Solution 0.1 N Pack sizes 500 ml · 1 L · 2.5 L Grades offered
ARTypical applications
- Acid value and free fatty acid determination
- Assay titration in pharmaceutical QC
- Acidity of water and beverages
Full record, hazard data and enquiry for Sodium Hydroxide Volumetric Solution 0.1 N →
EDTA Volumetric Solution 0.05 M (0.1 N)
Ready-standardised disodium EDTA titrant for hardness and metal ion determination.
Ex-stockAR500 ml · 1 L · 2.5 L
Specification for EDTA Volumetric Solution 0.05 M (0.1 N)
Specification for EDTA Volumetric Solution 0.05 M (0.1 N) Pack sizes 500 ml · 1 L · 2.5 L Grades offered
ARTypical applications
- Total hardness of water
- Calcium and magnesium determination
- Metal ion complexometry
Full record, hazard data and enquiry for EDTA Volumetric Solution 0.05 M (0.1 N) →
Silver Nitrate Volumetric Solution 0.1 N
Standardised argentometric titrant for chloride determination, supplied in amber glass.
IndentAR500 ml · 1 L
Specification for Silver Nitrate Volumetric Solution 0.1 N
Specification for Silver Nitrate Volumetric Solution 0.1 N Pack sizes 500 ml · 1 L Grades offered
ARTypical applications
- Chloride in water and effluent
- Chloride in concrete and aggregate (IS 14959)
- Salt content in food
Full record, hazard data and enquiry for Silver Nitrate Volumetric Solution 0.1 N →
Iodine Volumetric Solution 0.1 N
CAS 7553-56-2Standardised iodine solution for iodimetric titration, in amber glass.
I₂
Ex-stockAR500 ml · 1 L
Specification for Iodine Volumetric Solution 0.1 N
Specification for Iodine Volumetric Solution 0.1 N Pack sizes 500 ml · 1 L Grades offered
ARTypical applications
- Iodimetric titration
- Sulphur dioxide and sulphite determination
- Ascorbic acid assay
Full record, hazard data and enquiry for Iodine Volumetric Solution 0.1 N →
Hydrochloric Acid Volumetric Solution 0.1 N
CAS 7647-01-0Ready-standardised hydrochloric acid titrant, factor printed and dated. Also at 0.5 N and 1 N.
HCl
Ex-stockAR500 ml · 1 L · 2.5 L
Specification for Hydrochloric Acid Volumetric Solution 0.1 N
Specification for Hydrochloric Acid Volumetric Solution 0.1 N Pack sizes 500 ml · 1 L · 2.5 L Grades offered
ARTypical applications
- Alkalinity of water
- Kjeldahl back-titration
- Assay titration in pharmaceutical QC
Full record, hazard data and enquiry for Hydrochloric Acid Volumetric Solution 0.1 N →
Analytical Balance, 220 g × 0.1 mg
Four-decimal analytical balance with draught shield and internal or external calibration.
Ex-stockISO/IEC 17025Capacity: 220 g
Specification for Analytical Balance, 220 g × 0.1 mg
Specification for Analytical Balance, 220 g × 0.1 mg Capacity 220 g Readability 0.1 mg (0.0001 g) Repeatability ≤ 0.1 mg Linearity ± 0.2 mg Pan size 90 mm ø Calibration Internal motorised or external OIML class E2 weight Services Installation & commissioning · Calibration · Operator training · Annual maintenance contract Standards
ISO/IEC 17025Typical applications
- Weighing for standard and reagent preparation
- Gravimetric analysis
- Sample weighing for assay
Full record, hazard data and enquiry for Analytical Balance, 220 g × 0.1 mg →
pH Meter, Benchtop, Five-Point Calibration
Microprocessor benchtop pH and mV meter with automatic temperature compensation and up to five-point calibration.
Ex-stockpH range: −2.00 to 16.00
Specification for pH Meter, Benchtop, Five-Point Calibration
Specification for pH Meter, Benchtop, Five-Point Calibration pH range −2.00 to 16.00 pH resolution 0.01 (0.001 on selected models) Accuracy ± 0.01 pH Calibration points Up to 5, with auto buffer recognition Temperature ATC, −10 to 110 °C Output RS-232 / USB, optional printer Services Installation & commissioning · Calibration · Operator training · Annual maintenance contract · Spares & consumables Typical applications
- pH measurement in water, effluent and process samples
- Pharmaceutical QC pH determination
Full record, hazard data and enquiry for pH Meter, Benchtop, Five-Point Calibration →
UV-Visible Spectrophotometer, Double Beam
Double-beam UV-Vis spectrophotometer for quantitative absorbance and scanning work.
IndentUSP <857>Wavelength range: 190–1100 nm
Specification for UV-Visible Spectrophotometer, Double Beam
Specification for UV-Visible Spectrophotometer, Double Beam Wavelength range 190–1100 nm Spectral bandwidth 1 nm (2 nm and variable on selected models) Wavelength accuracy ± 0.3 nm Photometric range −0.3 to 3.0 A Stray light < 0.05% T at 220 nm Software PC control; 21 CFR Part 11 package to order Services Installation & commissioning · Calibration · Validation & qualification · Operator training · Annual maintenance contract · Spares & consumables Standards
USP <857>Typical applications
- Quantitative assay by absorbance
- COD, nitrate, phosphate and metals colorimetry
- Dissolution and content uniformity testing
Full record, hazard data and enquiry for UV-Visible Spectrophotometer, Double Beam →
Kjeldahl Digestion and Distillation Unit
Digestion block with fume scrubber and steam distillation unit for total nitrogen and crude protein determination.
IndentDigestion positions: 3, 6, 8 or 12
Specification for Kjeldahl Digestion and Distillation Unit
Specification for Kjeldahl Digestion and Distillation Unit Digestion positions 3, 6, 8 or 12 Digestion temperature Up to 450 °C, PID controlled Fume scrubber Water aspirator or recirculating, with neutralisation Distillation Steam generator with automatic alkali dosing Recovery ≥ 99.5% on ammonium sulphate reference Site preparation Required — foundation or utilities Services Installation & commissioning · Calibration · Operator training · Annual maintenance contract · Spares & consumables Typical applications
- Crude protein in food and feed
- Total Kjeldahl nitrogen in water and effluent
- Nitrogen in soil and fertiliser
Full record, hazard data and enquiry for Kjeldahl Digestion and Distillation Unit →
Conductivity / TDS Meter, Benchtop and Portable
Conductivity, TDS, salinity and resistivity measurement with automatic temperature compensation.
Ex-stockUSP <645>Conductivity range: 0.01 µS/cm to 200 mS/cm, auto-ranging
Specification for Conductivity / TDS Meter, Benchtop and Portable
Specification for Conductivity / TDS Meter, Benchtop and Portable Conductivity range 0.01 µS/cm to 200 mS/cm, auto-ranging Accuracy ± 0.5% of full scale Cell constants K = 0.1, 1.0 and 10.0 Temperature ATC with selectable coefficient Services Calibration · Operator training · Annual maintenance contract · Spares & consumables Standards
USP <645>Typical applications
- Purified water system monitoring
- Effluent and process water conductivity
- TDS in drinking water
Full record, hazard data and enquiry for Conductivity / TDS Meter, Benchtop and Portable →
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