CN2752759Y - Staff gauge for quantitative detecting total hardness of water quality - Google Patents
Staff gauge for quantitative detecting total hardness of water quality Download PDFInfo
- Publication number
- CN2752759Y CN2752759Y CN 200420070366 CN200420070366U CN2752759Y CN 2752759 Y CN2752759 Y CN 2752759Y CN 200420070366 CN200420070366 CN 200420070366 CN 200420070366 U CN200420070366 U CN 200420070366U CN 2752759 Y CN2752759 Y CN 2752759Y
- Authority
- CN
- China
- Prior art keywords
- total hardness
- water quality
- water
- scale
- staff gauge
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The utility model relates to a staff gauge for quantificationally detecting the total hardness of water quality, which is a transparent sliver-shaped staff gauge of which one side is provided with two rows of scales according to the total hardness value of water quality. The two rows of scales are orderly staggered and marked with corresponding numerical values from small to big. The utility model is designed by that the height of colored material which is generated by test paper reacting to ca<2+>and mg<2+> of water has a linear relation with the logarithm of water hardness, and can exactly react the total hardness of water quality. The measurement range of the staff gauge for quantificationally detecting the total hardness of water quality is from 1 mg/L to 500 mg/L. The utility model has the advantages of exact test, high speed, direct viewing, convenient operation, etc., and can quantificationally detect the total hardness of water quality at site. The staff gauge for quantificationally detecting the total hardness of water quality overcomes the defects that the color identification of test paper with the naked eyes exists in large errors, and satisfies the technical requirements of the monitoring of the total hardness of water quality.
Description
Technical field
The utility model belongs to water quality inspection technique, the scale of the detection by quantitative determining total hardness of water that particularly a kind of test paper method is used.
Background technology
Adopting test paper method to measure determining total hardness of water is a kind of easy, analytical technology personnel of fast, not needing specialty, just can measure the method for determining total hardness of water at the scene.Water treatment at present and some industrial process waters need accurately to measure the total hardness of water quality.Yet the domestic test paper method that adopts all is to determine determining total hardness of water according to its reaction back coloring matter change in color.And people's naked eyes have bigger difference to the color discrimination ability, make the measurement result error bigger, can only carry out qualitative and half-quantitative detection, can not satisfy the technical requirement of water quality monitoring.
The utility model content
The purpose of this utility model is the technical matters that adopts test paper test determining total hardness of water to exist according to existing, provide a kind of test accurate, quick, easy to operate, but in situ quantitation detects the scale of determining total hardness of water.
The scale of the utility model detection by quantitative determining total hardness of water, it be one side to have two row be scale by the determining total hardness of water value, its scale is ascending staggered in order and have a strip scale of respective value mark; The measurement range of described scale is 1～00mg/L; Described scale is made by plastics or transparent organic glass, and it is to demarcate Ca in test paper and the water according to the experimental data of repeatedly carrying out test paper method mensuration determining total hardness of water
2+, Mg
2+The height of the coloring matter that reaction generates becomes certain linear relationship, total hardness that can accurate response water quality, and scaled measurement unit is mg/L (in a calcium).
It is accurate, quick, directly perceived, easy to operate to the utlity model has test, but in situ quantitation detects advantages such as determining total hardness of water, has overcome to distinguish that with the naked eye there is the shortcoming than mistake in the test paper color, can satisfy the technical requirement to the determining total hardness of water monitoring.
Description of drawings
Fig. 1 is a contour structures synoptic diagram of the present utility model.
Embodiment
As shown in Figure 1, a kind of scale of detection by quantitative determining total hardness of water, it is made of plastics or transparent organic glass, and is being carved with the strip scales of two row by determining total hardness of water value mark in one side, and its scale is the ascending order mark that staggers, and indicates respective value; The scale measurement range is 1～500mg/L.
Scale is to demarcate Ca in test paper and the water according to the experimental data of repeatedly carrying out test paper method mensuration determining total hardness of water
2+, Mg
2+The length of the coloring matter that reaction generates becomes certain linear relationship, total hardness that can accurate response water quality.The determining total hardness of water surveyors' staff be in water hardness mg/L (with calcium) as measuring unit, the scope of measuring the water hardness is less than 300mg/L (in calcium), the long 43.5mm of the corresponding scale of institute.At vertical center section of scale, with different scale apportions both sides, the centre stays 10～12mm wide, marks scale unit in calcium, mg/L; If in lime carbonate, scale value multiply by 2.5.
The manufacturing process of detection by quantitative determining total hardness of water scale is:
1. prepare the standard solution of a series of different total hardnesss, use the test paper replicate determination respectively 6 times, each test paper dip time is all 5～10min mutually, take out and mark immediately, measure its length, get its mean value with ruler, according to the hardness of the mean value correspondence of different length as scale unit, ruler units is mg/L, and measurement range is 0～500mg/L (in a calcium), the long 0～50.5mm (determining total hardness of water is in calcium) of the corresponding scale of institute.
2. amount the time should make the opening measuring junction of test paper overlap with the zero graduation line of scale, i.e. A place, and keep flat and place the vertical centre of scale, and then the scale of the front end correspondence of coloring matter is the total hardness of water on the test paper.
3. adopt detection by quantitative determining total hardness of water scale method and chemical EDTA titrimetry comparative result, as shown in table 1.
Table 1
In calcium in lime carbonate
EDTA EDTA relative mistake
The test paper method test paper method
Titrimetry titrimetry (%)
Dongling tap water 45 45.7 112.5 114.2-1.5
Big eastern tap water 100 100.8 250 252-0.8
Emperor's aunt tap water 70 68.6 175 171.5 2.0
Peace tap water 40 39.2 100 98 2.0
Iron west tap water 50 51.5 125 128.8-2.9
Nan Canal water 35 33.2 87.5 83 3.4
Canal, north water 30 29.1 75 72.8 3.1
Certain mineral water 5 5.02 12.5 12.6 0.4
Annotate: 1. in the data of lime carbonate for to take advantage of 2.5 to obtain in the data of calcium.
2. water sample picks up from the resident of Shenyang City respectively and uses tap water and canal, north and south, city water.
Claims (2)
1, a kind of scale of detection by quantitative determining total hardness of water is characterized in that, it is that to have two row in one side be scale by the determining total hardness of water value, and its scale is the ascending mark and indicate the strip scale of respective value of staggering in order.
2, the scale of detection by quantitative determining total hardness of water according to claim 1 is characterized in that described scale measurement range is 1～500mg/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420070366 CN2752759Y (en) | 2004-08-20 | 2004-08-20 | Staff gauge for quantitative detecting total hardness of water quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420070366 CN2752759Y (en) | 2004-08-20 | 2004-08-20 | Staff gauge for quantitative detecting total hardness of water quality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2752759Y true CN2752759Y (en) | 2006-01-18 |
Family
ID=35914170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420070366 Expired - Fee Related CN2752759Y (en) | 2004-08-20 | 2004-08-20 | Staff gauge for quantitative detecting total hardness of water quality |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2752759Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106290826A (en) * | 2015-05-22 | 2017-01-04 | 熊光滨 | Colour band height quantitative method |
-
2004
- 2004-08-20 CN CN 200420070366 patent/CN2752759Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106290826A (en) * | 2015-05-22 | 2017-01-04 | 熊光滨 | Colour band height quantitative method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |