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pH too high or too low

WHAT is hth
Calcium Hypochorite? WHY should I
change to hth? HOW much hth
do I need? WHERE can I buy
hth in the UK?

Arch Chemicals Ltd - a Lonza company, Wheldon Road, Castleford WF10 2JT. Tel: 01977 714100

In the event of a chemical emergency, call the National Chemical Emergency Centre on 01235 239 670 or call 999

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