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Total Hardness Test Kit (0-80 TH) for Swimming Pools HI38904

Producer: HANNA Instruments

SKU: HANNA-HI38904 Category: Hanna experimental measuring equipment

Total Hardness Test Kit (0-80 TH) Specialized in Swimming Pools

– Manual hardness tester with titration method

– Scale from 0 to 80 TH CaCO₃

– Increment 1 TH

– Long-term use without maintenance like electronic devices

– Convenient for field measurements

– Supplied with full accessories and reagents

TOTAL HARDNESS OF SWIMMING POOL WATER

Water hardness, especially calcium, is an important parameter along with pH and alkalinity in testing the water quality of a swimming pool or hot tub. Water hardness includes both calcium and magnesium ions found in natural water and the concentrations will vary depending on the region and water source. Water sources include lakes, rivers, streams and groundwater (wells) with groundwater usually being the highest because the minerals are absorbed by rainwater as it percolates through the ground. For example, in areas with a lot of limestone, groundwater will be high in calcium carbonate. Hardness is an important measurement because high levels of calcium carbonate are likely to precipitate, especially as pH increases, resulting in cloudy water, clogged filters and ineffective heating. Low levels of hardness will cause calcification of pool water and concrete leading to rot and scaling.

Hardness	^ofH	^odH	ppm (mg/L)
Very soft	0 – 7	0 – 4	0 – 70
Soft	7 – 15	4 – 8	70 – 150
Slightly stiff	15 – 25	8 – 14	150 – 250
Medium Hard	25-32	14 – 18	250 – 320
Hard	32 – 42	18 – 23	320 – 420
Very hard	>42	>23	>420

1 TH = 1 ^ofH = 0.562 ^odH = 0.2 meq/L = 10 ppm (mg/L) CaCO₃

RAPID TOTAL HARDNESS MEASUREMENT BY TITRATION METHOD

Scale 0 to 80 TH CaCO₃ with increments of 1 TH

THE PERFECT SET WITH NO EXTRA PURCHASES

HI38904 Supplied with reagents and plastic cups

REAGENTS ARE CLEARLY LABELED AND QUANTIFIED

– Reagents are coded and named for easy use with step-by-step instructions.

- Cost savings.

SPECIFICATIONS

The scale	0 to 80 TH **1°TH = 1°fH = 0.562°dH = 0.7°eH = 0.2 meq/l = 10 mg/l CaCO₃
Resolution	0.1 TH
Method	calmagite
Number of measurements
CTK Type	Titration
Guarantee	Are not
Certificate of Analysis – COA	Are not
MSDS	Have:
Supply includes	– HI38904-0 Hardness Standard Solution – Calmagite solution – Plastic cup – Paper container