UNE MÉTHODE REPRODUCTIBLE
Comment l’utiliser
- Choose tests for a specific question and check the range, expiry date and storage condition.
- Flush or disinfect the sampling point as required by the method and use a clean container.
- Follow the stated sample volume, contact time, temperature and color-reading window exactly.
- Run a blank, duplicate or known reference when the decision matters, and write down units.
- Confirm unexpected or health-relevant results through an accredited laboratory before changing treatment.
INTERPRÉTER LA MESURE
Comment interpréter le résultat
- TDS or conductivity indicates dissolved ions; a low number does not prove that water is safe.
- Hardness tests guide softener settings but do not measure iron, bacteria or organic contamination.
- Color strips are approximate and can be affected by lighting, timing, disinfectant and sample color.
VÉRIFIER LA MÉTHODE
Problèmes courants et vérifications
Problème
The electronic meter changes every time.
Que faire
Rinse the probe, remove bubbles, allow temperature compensation to settle and check calibration solution.
Problème
Strip colors sit between two chart values.
Que faire
Read under neutral light at the exact specified time and report a range rather than false precision.
Problème
Water looks clear but smell or taste changed.
Que faire
Stop relying on appearance and arrange targeted laboratory testing and a source inspection.
S’ARRÊTER AVANT LE DANGER
Limite de sécurité
- Do not drink water declared unsafe or under a boil advisory because a home strip looks normal.
- Handle reagents as labeled, keep them away from children and never mix test chemicals.
- Use a laboratory sampling kit for bacteria, metals and regulated drinking-water decisions.
GUIDE D’ACHAT RAISONNÉ
Critères de choix
- Buy tests matched to your source and treatment: hardness and iron for a softener are different questions from bacteria.
- Check detection range, expiry date, replacement reagents and calibration standards before buying.
- Prefer one reliable parameter-specific method over a large strip claiming many poorly resolved results.
Types d’instruments
Idéal pour: Quick broad screening and deciding what to test properly.
Idéal pour: Better hardness, alkalinity or disinfectant estimates.
Idéal pour: Frequent trend checks with calibration and maintenance.
Idéal pour: Health decisions, new wells and legal compliance.
Fonctions courantes
Detection rangeResolutionTemperature compensationTwo-point calibrationReplaceable reagents
Ce qui mérite un supplément
- Parameter-specific tests with a useful range
- Fresh calibration standards and replaceable reagents
- Accredited laboratory analysis when health is involved
Ce qui ne mérite généralement pas le supplément
- A huge parameter count on one low-resolution strip
- Uncalibrated digital meters with extra decimal places
- Claims that TDS alone proves purity or safety