This part of GB/T 18570 specifies a field test method for the determination of chloride ions using a special detector tube. This method is applicable to steel surfaces before and after cleaning and coating surfaces during the coating process. This method uses appropriate surface sampling techniques for determination. GB/T 18570.5-2005 Surface preparation of steel before coating - Test for the assessment of surface cleanliness - Part 5: Determination of chloride on steel surfaces before coating (ion detector tube method) GB/T18570.5-2005 Standard download decompression password: www.bzxz.net
This part of GB/T 18570 specifies a field test method for the determination of chloride ions using a special detector tube. This method is applicable to steel surfaces before and after cleaning and coating surfaces during the coating process. This method uses appropriate surface sampling techniques for determination.

1C5 25.220.10
National Standard of the People's Republic of China
GR/T18570.52005/1SO8502-5.1998Surface preparation of steel substrates before painting
Tests for the assessment of surface cleanliness
Part 5: Determination of chloride on steel substrates before painting (ion detection tube method)
Preparation of steel substrates before application of paint (ion detection tube method)1S0 8S02 5.1998.1T
2005-09-14 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Standardization Administration of the People's Republic of China
2006-04-01 Implementation
CB/T19570.5—2005/IS>8502-5,1998[Current Edition] CB/T19570.5—2005/IS>8502-5,1998[Current Edition] CB/T19570.5—2005/IS>8502-5,1998[Current Edition] Surface preparation of steel materials before coating - Tests for the assessment of surface cleanliness ... Field tests of corrosion products of steel (technical report): "Part 2: Laboratory determination of fluoride on the surface of the treated steel; Part 3: Assessment of the surface quality of the steel before coating (compression test method); Part 1: Assessment of the possibility of corrosion before coating (decompression test method); Part 5: Oxide detection method for the steel before coating (single element method); Part 6: On-site determination of fluoride on the surface of the treated steel; Part 7: On-site determination of fluoride on the surface of the treated steel before coating (decompression test method); Part 8: On-site determination of fluoride on the surface of the steel before coating (decompression test method); Part 9: On-site determination of fluoride on the surface of the steel before coating (decompression test method); Part 10: On-site determination of fluoride on the surface of the steel before coating (decompression test method); Part 11: On-site determination of fluoride on the surface of the steel before coating (decompression test method); Part 12: On-site determination of fluoride on the surface of the steel before coating (decompression test method); Part 13: On-site determination of fluoride on the surface of the steel before coating (decompression test method); Part 14: On-site determination of fluoride on the surface of the steel before coating (decompression test method); Part 15: On-site determination of fluoride on the surface of the steel before coating (decompression test method); Part 16: On-site determination of fluoride on the surface of the steel before coating Part 1: On-site determination of water content of chlorides and sulphides - Part 11: On-site determination of sulphide content in water - Part 12: On-site determination of conductivity of sulphuric acid in water - Part 1: On-site determination of conductivity of sulphuric acid in water - Part 1: On-site determination of conductivity of sulphuric acid in water - Part 2: Method for determination of conductivity of sulphuric acid in water - Part 3025159F - Part 5 of GB/13570 - Method for testing the deactivation of surfaces treated with coatings - Part 5
Part: The new method for determining the surface chemical compounds of steel materials (English version!), this part is equivalent to 15502: 1598.
In order to make it usable, the following amendments are made to this part:) "International Standard" is changed to "international standard";
h) "" is used instead of "" as a decimal point, "" is used instead of "" as a public number, "2: In addition to the preface of the international standard,
This part is a collection of industry references. This part is a continuation of the National Technical Committee for Standardization of Metal Surface Treatment and the National Technical Committee for Standardization of Materials: Drafting units of this part, China Shipbuilding Industry Comprehensive Technology Research Institute, China Shipbuilding Industry 11th Research Institute. The main authors of this part are: Er Ke Renwei, Liu Bingyang, Bo Jianhua. 1 Standard
CE/18570.5—2005/1SO8502-5:1998 Surface preparation of steel before coating
Test for assessment of surface clarity
Part 5: Determination of chlorides on the surface of steel before coating (ion detection method)
This subsection of GB/1857 is a field test method for determining chloride ions using a special detection tube. This method is applicable to steel surfaces before and after treatment and to the surface of the steel layer during the coating process. This method uses appropriate surface sampling technology for calibration. Let: 1 door coating summer recording material sealing to surface treatment surface cleaning maintenance of the main design step brother part: please Hua Hua's table on the teaching chemical property will be the room determined to determine the surface chemical safety of the product to achieve, 2 normative references || tt || the terms of the listed documents through the use of GB17 become the clauses of this part, H only the period of text, all its trends (excluding the inner device or revised edition) are not suitable for the technical part, however, this part of the war and changes in the proposal of the party research is the replacement of these documents, the use of the new version, who do not meet the period of use, its become new old car activity What part is used?
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Use appropriate water to treat or soak, transfer the test surface and the water to the test surface, and collect the washing liquid. The concentration of chlorine ions is determined by the change of the color of the test tube with chromium fast medicine. 4 Transformer and materials
The water delivered should be the specified one.
4.2 Ion detection tube
4.2.1 Design
The width of the detection tube is a borosilicate tube, and the length of the glass tube is 4m~1 mm. The internal price is? -1m31m, etc. The danger of death is divided into 5% mass percentage of silver reagent, and the size range of the group sand is 1\m~m. Put the mixture of salt and silicon yarn into the left glass, plug the cotton wool chamber at both ends. Then put the glass tree into the melting chamber, and use it to detect. After the temporary design table treatment, the wool will not start to burn. 4.2.2 Calibration
After the batch detection is completed, select the card. The glass cutting machine (4.3) will cut off the end, and then put the end point of each detection band into the liquid containing different degrees of difference, and record it. Each change in the amount of color change of cattle, in grams per liter (m. Change to buy X-:
6F non-￥ effect: X
GB/1:8570.5-7cc5/rS8502-5:1998 degree heat this batch of test accounts
Note: the following use of the different cities out of the cumulative average method. And the individual test reverse selection Liao when the deep speed, the last used press the break registration display storage ten cold moisture, the storage period does not exceed 2 years 4.3 cutting machine
scraping machine with meter certificate break operation test average end 1.
4. 4 When the amount is
, the amount is 250mL,
4.5 beaker
1 cup of 1m, 2 cups of 2u1. 2.6 glass stir pull selection
cancer reverse press two losses.
4.7 cloth
source of chemical-free - is 323mmx3c\m, 4. gloves
sculpture or statue collected in high if.
4.9 station belt ||tt ||4.13 Temperature ruler
Measurement ruler.
5 Steps
5.7 Cleaning test area slope
Also describes the detailed test method of the disinfection test area: when the business, Sichuan case name tour called the extended half cleaning method, wait for the cleaning, should be the work! Clean period of material or rubber bite in the set: 1.8 Correctly wash out the standard of this please sink the cow-select, than the steel surface of the product as the test area. Use (4.-4.) to mark a test area with the actual size of 0.5m×0.m or a total area of ​​3.2m. The shape of the whole reduction depends on the size of the steel surface.
25)mL final 1ml. of the creator 1Ccl. of the capital (43). ）Put 1r1 water 4A
cloth micro bubble in the water outside the first person to burn, and then gently pat the water against the gauze cloth inside. Use the structure of the city to thoroughly steam the test area, and make sure that the water is out of the test area. Use the probe yarn to remove the entire surface of the test area, and then test the first person: 250m. Clean the outside, and then the store point list 4 times (total 5 times): each time the micro change direction, think that after the end of the disinfection, you can use the non-public small to disinfect for a while, so it is recommended that the operator use the whole Jinsha. After the five tests, the first person will confirm the effect of the yarn, and carefully wash the part of the enterprise in the small fire, and then sweep the water drama of the first person to wash the orange cup L! , stir to make it combine. After the method is completed, use 183u-
: 1:2, 19, the Hm4 method of the war east of the matter of the main chemical refining, 5.2
test business in the case of adding the rolling degree of the compound
state that is, 4. The flash is cut off to the two resources of the tube, the measurement end is set to change the width, the straight probe bubble consultation, please break the bottom of the beaker close to the busy part, when the drop wave opens to the product case, the product and the swim The color change caused by the chloride in the material indicates the slight color change. Read the chemical concentration of the test liquid from the above test method. The unit is g/l. If the above is within 15 g/l, repeat the above operation with another tube, and use 5 tubes in total for 5 tests. Record the results of each test separately. The intermediate copies can be obtained.
GB/T18570.5—2005/ISO 9502-5:1938 If the test is carried out between 5°C and 5°C, no temperature correction is required. Note: This reading should not be carried out at low temperatures. The reading rate is high in the presence of ions or precursor ions. The reading is as high as 20% nitric acid. The change in the position during operation is affected by the factory. The blank test can be carried out as specified above. 5.3 Calibration test To calibrate the detection, take 3 probe tubes from the batch of products and use them to test a drop of liquid with a known chloride concentration. Test the drop of liquid in the liquefied liquid chamber according to the liquid sense of the near-vapor. Take the nearest two numbers and make the calibration test. The accuracy of the obtained value should be within 10%. The oxygen ion concentration in the test film should be within 100 mg/cm2. The chloride concentration N is expressed as the oxidation rate per square meter of surface area. Formula (1, N = Na × LM, (NaCl) / A, (CUIXI / A where
7 Test report
effective value of the volume of water, in liters (1.3 people beaker sodium chloride concentration, in micrograms / liter (m /)! Sodium chloride monohydrate (equal to 53.5
oxygen atom (equal to 35.5) 1
test surface value, in square meters (m) equal to (.2: The test report should at least include the following:
standard test table must be All details of the drive, b: this part of the standard (/1k7c.52005); the manufacturer of the operating micro-tube, the approved machine: the test station adopts the test tube!
The higher the concentration of the test tower liquid, the less likely it is to go as follows: 5 plate inspection sections are estimated separately:
3) the average value of the 3 middle numbers.
Chapter 6 will give the test results of the mountain:
g) the difference with the given steps, the light of other cleaning methods of the new technology details: h:i
Watt test period.
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