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  1. Solutions (496)
  2. CAL Check Standards (95)
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  1. pH (2)
  2. Dissolved Oxygen (1)
  3. Chlorine (6)
  4. Fluoride (2)
  5. Chloride (1)
  6. Ammonia (3)
  7. Nitrate (2)
  8. Potassium (1)
  9. Silver (1)
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  13. Relative Humidity (1)
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  18. Copper (2)
  19. Hydrazine (1)
  20. Sulphate (1)
  21. Manganese (2)
  22. Cyanide (1)
  23. Magnesium (3)
  24. Hardness (2)
  25. Cyanuric Acid (1)
  26. Molybdenum (1)
  27. Zinc (1)
  28. Chlorine Dioxide (1)
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HI-782-11 Marine High Range Nitrate Calibration Standards

£18.15 (exc. VAT) £21.78 (inc. VAT)

HI-97721-11 Iron High Range CAL Check standard kit for HI-977 series photometers

Order Now For 2 Week Delivery

£214.80 (exc. VAT) £257.76 (inc. VAT)

HI-97719-11 CAL Check™ standards for Magnesium Hardness, 0.0 and 1.00 ppm

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£214.80 (exc. VAT) £257.76 (inc. VAT)

HI-97718-11 CAL Check™ standards for Iodine, 0.0 and 2.5 ppm

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£214.80 (exc. VAT) £257.76 (inc. VAT)

HI-97717-11 CAL Check™ standards for Phosphate HR, 0.0 and 15.0 ppm

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£214.80 (exc. VAT) £257.76 (inc. VAT)

HI-97716-11 CAL Check™ standards for Bromine portable photometer

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£214.80 (exc. VAT) £257.76 (inc. VAT)

HI-97714-11 CAL Check™ standards for Cyanide, 0.0 and 0.100 ppm

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£214.80 (exc. VAT) £257.76 (inc. VAT)

HI-97713-11 Phosphate Low Range CAL Check standard

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£214.80 (exc. VAT) £257.76 (inc. VAT)

HI-97712-11 CAL Check™ standards for Aluminum, 0.0 and 0.50 ppm

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£214.80 (exc. VAT) £257.76 (inc. VAT)

HI-97723-11 CAL Check™ standards for Chromium VI HR, 0.0 and 300 µg/l

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£214.80 (exc. VAT) £257.76 (inc. VAT)
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