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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)
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  5. Chloride (1)
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  25. Cyanuric Acid (1)
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  28. Chlorine Dioxide (1)
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Useful Information

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HI-97709-11 CAL Check™ standards for Manganese HR, 0.0 and 10 ppm

Order Now For 2 Week Delivery

£214.80 (exc. VAT) £257.76 (inc. VAT)

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
£24.40 (exc. VAT) £29.28 (inc. VAT)

HI-847492-11 Calibration cuvette kit

Order Now For 2 Week Delivery

£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
£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

Order Now For 2 Week Delivery

£103.70 (exc. VAT) £124.44 (inc. VAT)
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