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  1. Solutions (495)
  2. CAL Check Standards (94)
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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)
  10. Iodine (1)
  11. Phosphate (2)
  12. Silica (2)
  13. Relative Humidity (1)
  14. Nitrite (2)
  15. Iron (2)
  16. Chromium (2)
  17. Nickel (2)
  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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    £236

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HI-83399-11 CAL Check Cuvette Kit for HI-83399 Multiparameter Photometer with COD for water and Waste water

Order Now For 2 Week Delivery

£154.90 (exc. VAT) £185.88 (inc. VAT)

HI-7084L Standard Solution at 58.4 g/L NaCl

500ml bottle

Order Now For 2 Week Delivery

£26.50 (exc. VAT) £31.80 (inc. VAT)

HI-96738-11 CalCheck standards for Chlorine Dioxide, 0.0 and 1.00 ppm

£235.80 (exc. VAT) £282.96 (inc. VAT)

HI-96740-11 CalCheck standards for Nickel LR, 0.0 and 0.500 ppm

Order Now For 2 Week Delivery

£235.80 (exc. VAT) £282.96 (inc. VAT)

HI-96746-11 CalCheck standards for Iron LR, 0.0 and 0.800 ppm

Order Now For 2 Week Delivery

£235.80 (exc. VAT) £282.96 (inc. VAT)

HI-96747-11 CalCheck standards for Copper LR, 0.0 and 0.750 ppm

£235.80 (exc. VAT) £282.96 (inc. VAT)

HI-96737-11 CalCheck standards for Silver, 0.0 and 0.500 ppm

Standard value of 0.500 ±0.010 mg/L silver @ 25°C

Order Now For 2 Week Delivery

£235.80 (exc. VAT) £282.96 (inc. VAT)

HI-96735-11 CalCheck standards for Hardness LR/MR/HR, 0.0 and 150/350/520 pp

Standard value of 150 ±5 (low range), 350 ±7 (medium range), 520 ±10 (high range) mg/L CaCO3 @ 25°C

Order Now For 2 Week Delivery

£235.80 (exc. VAT) £282.96 (inc. VAT)

HI-96731-11 CalCheck standards for Zinc, 0.0 and 1.50 ppm

£235.80 (exc. VAT) £282.96 (inc. VAT)

HI-96730-11 CalCheck standards for Molybdenum, 0.0 and 10.0 ppm

Standard Value of 10.0 ±0.3 mg/L molybdenum @ 25°C

Order Now For 2 Week Delivery

£235.80 (exc. VAT) £282.96 (inc. VAT)
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