Natural gushing from deep underground or collected by drilling contains a certain amount of minerals, trace elements or other components. In general, its chemical composition, flow rate, water temperature and other dynamic indicators are relatively stable in the natural periodic fluctuation range, and it is a rare mineral resource.
Basic information
Lithium content
0.20≤ Lithium ≤5.0
Strontium content
0.20≤ Sr ≤5.0
hackneyed and stereotyped expressions
≥ 1.0
The basic characteristics of mineral water are:
A. Mineral water is a mineral resource, which comes from natural outcrops or artificially exposed underground deep circulating groundwater.
B characterized by containing a certain amount of mineral salts or trace elements, or carbon dioxide gas. In general, its chemical composition, flow rate, temperature and other dynamics should be relatively stable.
C mining and bottling should be carried out under the condition of ensuring the safety of bacteriological indicators of water source hygiene. Under the condition of not changing the characteristics and main components of drinking natural mineral water, it is allowed to explode, decant and filter to remove iron and manganese that exceed the standard and affect sensory performance, or to add carbon dioxide.
D it is forbidden to transport raw water to other places and fill it in containers.
Drinking standard
Natural mineral water is scarce in China, and most of the mineral water sold in the market is treated by tap water, groundwater and other water quality or artificially added with mineral elements. Compared with natural mineral water, the minerals contained are quite different. Let's take a look at the drinking standard of natural mineral water:
Water quality routine
Natural mineral water is natural water flowing through the rock stratum, and its water quality is slightly different from that of treated mineral water. The chromaticity is within the normal range of ≤ 15, and the turbidity (NTU) is within the range of ≤ 5. No abnormal taste, no turbid substances and precipitated mineral salts visible to the naked eye.
mineral
Iodide: 0.20≤ lithium ≤5.0
Metasilicic acid: ≥25.0 (water temperature must be above 25℃)
Selenium: 0.0 10≤ lithium ≤0.050.
Free carbon dioxide: ≥250 mg
Total dissolved solids: ≥ 1000mg.
Zinc:
Copper:
Barium: < 0.70
Cadmium:
Chromium (Cr6+)
Clue:
Mercury:
Silver:
Boron (in H3BO3): < 30.0
Arsenic: < 0.050