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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

Useful Information

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HI-97708-11 CAL Check™ standards for Nitrite HR, 0.0 and 75 ppm

Order Now For 2 Week Delivery

£214.80 (exc. VAT) £257.76 (inc. VAT)

HI-97707-11 CAL Check™ standards for Nitrite LR, 0.0 and 0.2 ppm

Order Now For 2 Week Delivery

£214.80 (exc. VAT) £257.76 (inc. VAT)

HI-7081L Standard Solution at 30 g/L NaCl, 500ml

500ml bottle

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£24.40 (exc. VAT) £29.28 (inc. VAT)

HI-847492-11 Calibration cuvette kit

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£112.80 (exc. VAT) £135.36 (inc. VAT)

HI-708-11 Nitrite High Range Checker HC Calibration Check Set (0-150 ppm)

Standard value of 75 +/- 5 ppm nitrite @ 25°C

Order Now For 2 Week Delivery

£24.45 (exc. VAT) £29.34 (inc. VAT)

HI-700-11 Ammonia Checker calibration check set (0.00 and 1.00 ppm Ammonia)

Standard value of 1.50 +/- 0.10 ppm ammonia @ 25°C

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£20.90 (exc. VAT) £25.08 (inc. VAT)

HI-4020-11 Brix standard 50%, 10mL

£49.70 (exc. VAT) £59.64 (inc. VAT)

HI-96739-11 CalCheck standards for Fluoride HR, 0.0 and 10.0 ppm

Order Now For 2 Week Delivery

£235.80 (exc. VAT) £282.96 (inc. VAT)

HI-93701-11 Chlorine Standards kit comprising 0.00 0.25 0.5 & 1.0ppm

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£103.70 (exc. VAT) £124.44 (inc. VAT)

HI-7102 Relative humidity calibration chamber

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£152.20 (exc. VAT) £182.64 (inc. VAT)
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