HANNA HI3812 总硬度快速检测试剂盒 (0-300 mg/L)
有库存: 4 个
不含增值税
919,666 VND
含增值税
993,239 VND
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Method: Titration
Range: 0.0-30.0 mg/L; 0-300 mg/L
Smallest Increment: 0.3 mg/L; 3 mg/L
Chemical Method: EDTA
Number of Tests: 100
Weight: 460 g
Order information
The HI-3812 test kit is supplied with the following;
+ 30 mL hardness buffer
+ 10 mL calmagite indicator
+ 120 mL EDTA solution
+ 20 mL plastic beaker with cap and 50 mL plastic beaker with cap
+ 1 mL syringe with tip
Manual
Water Hardness Test Kit
The HI-3812 test kit tests the hardness level as mg/L (ppm) calcium carbonate, via an EDTA (ethylene-diamine-tetraacetic acid) titration.
Water hardness has traditionally been defined as the capacity of water to precipitate soap. The ionic species in the water causing the precipitation was later found to be primarily calcium and magnesium. In the present, therefore, water hardness is actually a quantitative measure of these ions in the water sample. It is also now known that certain other ion species, such as iron, zinc and manganese, contribute to the overall water hardness. The measure and subsequent control of water hardness is essential to prevent scaling and clogging in water pipes.
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