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Swimming Pool Water Testing

Residual chlorine, pH, turbidity, cyanuric acid and microbiological safety for recreational water.

Overview What We Test Parameters Methods Accreditation Samples Process FAQ

Water Testing

About Swimming Pool Water Testing

Swimming pool and spa water is a shared bathing environment, and without proper disinfection it transmits eye, skin and gastrointestinal infection between users. CVR Labs tests pool and spa water for the parameters that govern bather safety and comfort — residual chlorine (free and combined), pH, turbidity, cyanuric acid and total dissolved solids — alongside the microbiological indicators that confirm disinfection is working.

We interpret results against recreational-water guidance so a hotel, club or apartment operator knows whether chlorination and filtration are adequate or drifting. Combined chlorine and pH in particular explain the irritation complaints that pools generate, turning a guess into a corrective action.

Swimming Pool Water Testing at CVR Labs Chennai

Most Requested

Signature tests under Swimming Pool Water Testing

The checks clients most often ask for with this service — we build the right sub-panel around your product and standard.

Free & combined residual chlorinepHTurbidity & clarityCyanuric acidTotal dissolved solidsTotal coliforms & E. coli

Test Coverage

What we analyse under Swimming Pool Water Testing

The parameter groups below are drawn from this service's own accredited scope; the full searchable list follows.

Disinfection failure spreads infection

Inadequate residual chlorine lets eye, skin and gut infections pass between bathers — microbiology confirms the disinfection actually works.

pH controls everything

Out-of-range pH cripples chlorine efficacy and causes irritation; it is the master parameter of pool-water quality.

Combined chlorine explains complaints

Chloramines (combined chlorine), not free chlorine, cause the stinging eyes and odour bathers complain about — and only testing separates the two.

Disinfection & balance

Total Residual chlorinepH @ 25°CTotal alkalinity as CaCO3Conductivity @ 25°CTotal Dissolved Solids at 180 °CTurbidity

Aesthetic & clarity

ColourOdourTasteTurbidityDissolved OxygenOxygen absorbed in 4 hrs

Ions & minerals

Calcium as CaMagnesium as MgSodium as NaChloride (as Cl)Iron as FeBorates as B

Heavy & trace metals

Arsenic as AsCadmium as CdLead as PbMercury as HgChromium as CrCopper as CuZinc as Zn

Microbiology

Total ColiformsE.coliFaecal coliformsLegionella sppStandard Plate Count

NABL Scope of Accreditation

Swimming Pool Water Testing — parameters & methods

Parameter / Test	Method / Standard
E.coli	IS 5887 (Part 1)CVR/MB/SOP/17APHA 24th Edition 9221 F
Faecal coliforms	APHA 24th Edition 9221 EIS 1622
Legionella spp	ISO 11731
Standard Plate Count	IS 3328
Total Coliforms	IS 1622IS 15185APHA 24th Edition 9221 B
Aluminium as Al	IS 3025 (PART 65)CVR/INS/SOP/ICPMS/005CVR/INS/SOP/ICPMS/001
Antimony as Sb	IS 3025 (PART 65)CVR/INS/SOP/ICPMS/005CVR/INS/SOP/ICPMS/001
Arsenic as As	CVR/INS/SOP/ICPMS/003IS 3025 (PART 65)CVR/INS/SOP/ICPMS/001
Barium as Ba	IS 3025 (PART 65)CVR/INS/SOP/ICPMS/005CVR/INS/SOP/ICPMS/001
Borates as B	IS 3025 (PART 65)
Cadmium as Cd	CVR/INS/SOP/ICPMS/003IS 3025 (PART 65)CVR/INS/SOP/ICPMS/005
Chromium as Cr	IS 3025 (PART 65)CVR/INS/SOP/ICPMS/005CVR/INS/SOP/ICPMS/001
Copper as Cu	CVR/INS/SOP/ICPMS/003IS 3025 (PART 65)CVR/INS/SOP/ICPMS/005
Lead as Pb	CVR/INS/SOP/ICPMS/003IS 3025 (PART 65)CVR/INS/SOP/ICPMS/001
Manganese as Mn	IS 3025 (PART 65)CVR/INS/SOP/ICPMS/005CVR/INS/SOP/ICPMS/001
Mercury as Hg	AOAC 22nd Edition : 2015.01EPA 200.8EPA 29
Molybdenum as Mo	IS 3025 (PART 65)CVR/INS/SOP/ICPMS/005CVR/INS/SOP/ICPMS/001
Nickel as Ni	CVR/INS/SOP/ICPMS/003IS 3025 (PART 65)CVR/INS/SOP/ICPMS/001
Selenium as Se	IS 3025 (PART 65)CVR/INS/SOP/ICPMS/005CVR/INS/SOP/ICPMS/001
Silver as Ag	IS 3025 (PART 65)CVR/INS/SOP/ICPMS/005CVR/INS/SOP/ICPMS/001
Uranium as U	IS 3025 (PART 65)CVR/INS/SOP/ICPMS/012
Zinc as Zn	CVR/INS/SOP/ICPMS/003IS 3025 (PART 65)
Calcium as Ca	3500-Ca B APHA 24th EditionIS 3025 (Part 40)IS 7224
Chloride (as Cl)	IS 3025 (Part 32) Argentometric Method4500-Cl- B APHA 24th Edition4500-Cl - B APHA 24th Edition
Colour	2120 B APHA 24th EditionIS 3025 (Part 4) Platinum Cobalt (Visual Comparison Method)2120 B APHA24th Edition
Conductivity @ 25°C	IS 3025 (Part 14)2510 APHA 24th Edition2510 B APHA 24th Edition
Dissolved Oxygen	IS 3025 (Part 38)4500-O APHA 24th Edition
Iron as Fe	3500-Fe B APHA 24th EditionIS 3025 (Part 53)CVR/INS/SOP/ICPMS/005
Magnesium as Mg	IS 3025 (Part 46)3500-Mg B APHA 24th EditionIS 7224
Odour	2150 APHA 24th EditionIS 3025 (Part 5)IS 3025:Part 5
Oxygen absorbed in 4 hrs	IS 3025 (Part 63)
pH @ 25°C	IS 3025 (Part 11)4500 H+-B APHA 24th Edition4500-H+ B APHA 24th Edition
Sodium as Na	3500-Na B APHA 24th EditionIS 3025 (Part 45) Clause 5CVR/WT/SOP/021
Taste	2160 C APHA 24th EditionIS 3025 (Part 8)
Total alkalinity as CaCO3	2320 B APHA 24th Edition
Total Dissolved Solids at 180 °C	IS 3025 (Part 16)2540 C APHA 24th Edition2540C-APHA 24th Edition
Total Residual chlorine	4500-Cl B APHA 24th Edition
Turbidity	IS 3025 (Part 10)2130 B APHA 24th Edition

Need a parameter that isn't listed? Share your product and requirement and our technical team will confirm the applicable method, standard and turnaround, and advise whether it falls within our NABL scope. Contact our technical team →

Methods & Standards

How Swimming Pool Water Testing is tested

Reference methods applied

IS 3025 (water test series)APHA 24th Edition (Standard Methods)IS 5887 / IS 1622 / IS 15185 (microbiology)ISO 11731 (Legionella)IS 3328 / IS 3025 (PART 65)ICP-MS (trace metals)

Where more than one standard applies, the appropriate method is selected for each sample and regulatory requirement. Physico-chemical parameters follow the IS 3025 series and APHA Standard Methods; microbiology runs to IS 5887 / IS 1622 / IS 15185 and ISO 11731 for Legionella, and trace metals are determined by ICP-MS under validated in-house CVR SOPs within the accredited scope.

Accreditation & Recognition

Accreditations covering Swimming Pool Water Testing

See the Accreditations & Scope page for full certificate details.

NABL

BIS

CPCB

ISO 9001

Samples we accept

Samples we accept for Swimming Pool Water Testing

Swimming poolspa & recreational water

How It Works

From enquiry to accredited report

Request a Quote

Share product, parameters and target standard.

Send Sample

Submit in sealed, labelled packaging or arrange pickup.

Login & Prep

Logged in LIMS with unique IDs and prepared.

Accredited Analysis

Validated NABL-scope methods on advanced instruments.

Test Report

Traceable, accredited report with limit comparison.

FAQ

Swimming Pool Water Testing — frequently asked questions

Is Swimming Pool Water Testing NABL-accredited at CVR Labs?

Yes. Swimming Pool Water Testing is performed under CVR Labs' NABL ISO/IEC 17025:2017 accreditation (Cert. NABLT0626TN18226) at our Chennai laboratory, with traceable, audit-ready reports accepted for compliance and submission.

What does swimming-pool water testing cover?

Free and combined residual chlorine, pH, turbidity, cyanuric acid and TDS, plus microbiological indicators (coliforms, E. coli) that confirm disinfection is effective.

Why do bathers complain of stinging eyes in a clear pool?

Usually combined chlorine (chloramines) and out-of-range pH, not free chlorine; testing distinguishes these so the right correction is made.

How often should pool water be tested?

Operational parameters are checked frequently on-site; periodic accredited laboratory testing verifies microbiological safety and overall water quality.

What samples do you accept for Swimming Pool Water Testing?

We routinely handle Swimming pool, spa & recreational water. Share your exact sample type and target standard and our technical team will confirm the required quantity, method and turnaround.

What parameters are included in Swimming Pool Water Testing?

The Swimming Pool Water Testing panel covers 38 accredited parameters such as E.coli, Faecal coliforms, Legionella spp, Standard Plate Count and Total Coliforms. The full searchable list is on this page — tell us your target and we'll map the right sub-panel for your sample.

Ready to test with an accredited laboratory?

NABL ISO/IEC 17025:2017 · ISO 9001 · ISO 45001 · CPCB · BIS — trusted since 1999.

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