This part is a part of the national standard GB/T 19816 on the sampling and testing of metallic abrasives for blast cleaning. The types of metallic abrasives and the requirements for each type are contained in the various parts of ISO 11124. ISO 11124 and GB/T 19816 are a series of standards on metallic abrasives for blast cleaning. For all information on these two series of standards, see Appendix A. This part of GB/T 19816 specifies the test method for determining the degree of free water content of metallic abrasives for blast cleaning. It is determined by measuring the mass loss on heating. GB/T 19816.7-2005 Test methods for metallic abrasives for blast cleaning for surface preparation of steel before coating Part 7: Determination of water content GB/T19816.7-2005 Standard download decompression password: www.bzxz.net
This part is a part of the national standard GB/T 19816 on the sampling and testing of metallic abrasives for blast cleaning. The types of metal abrasives and the requirements for each type are contained in the various parts of ISO 11124. ISO 11124 and GB/T 19816 are a series of standards on metal abrasives for blast cleaning. For all information about these two series of standards, see Appendix A. This part of GB/T 19816 specifies the test method for determining the free water content of metal abrasives for blast cleaning. It is determined by measuring the mass loss during heating.

[CS 2E,270. 10
National Standard of the People's Republic of China
GB/T:19816.7—2005/ISO11125-71993 Surface preparation of steel substrates before application of paints
Test methods for metallic abrasives for blast-cleaning-Part 7: Determination of moisture content
Preparalion uf steel substrates beforc application of paints and related pruductsTesi methuds for nelallic blast-cleaning abrasives-Par1 7:Drierinination of moisture(1S0 11125 7:1293.iDT)
2005-09-14 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Administration of Standardization of the People's Republic of China
2006-04-01 Implementation
GB/T 19816.7—2005/1S0 11125-7,1993/T9316 Test methods for the treatment of steel materials before use [blasting] are divided into the following parts: - Part 1: Determination of the surface roughness of steel materials before use; Part 2: Determination of the distribution of the surface roughness; Part 3: Determination of the recovery characteristics of abrasive materials; Part 4: Determination of the surface roughness; Part 5: Determination of the percentage of defective particles and microstructure; Part 6: Determination of the surface roughness; Part 7: Determination of the water content; Part 3: Determination of the recovery characteristics of abrasive materials: This part is equivalent to ISO11! 25-71093 Test method for the surface treatment of steel with paint and blast cleaning materials with a water content of 1.5% (English version)
1S01111257:1993 For the purpose of use, this part has been supplemented with the following: a) The word "subject" is changed to "subject" in this standard b) The semicolon is used instead of the reference numeral "subject" in the description; c) The foreword of the standard is as follows:
d) The list of national standards corresponding to the international standards of "materials for blast cleaning" is added in the appendix. The appendix to this part is the appendix of the part.
This part is mainly for the protection of the industry. This part is issued by the National Standard Committee for the Treatment of Metal Surfaces and Paints and the Technical Committee for the Protection ... This part was drafted by: Zhongrun Shipbuilding Industry Comprehensive Technology Research Institute, Maobo Tongcun Gaohe Steel Wind Co., Ltd. The main drafters of this part: the end of the source, the wind, or the application: T
1 Scope
GB/T19816.7-2005/[50 11125-7:1993 Surface treatment of steel before coating
Test method for metallic blasting materials Part Determination of water content
This part is in line with the national standard for sampling and testing of blasting materials (a small part of 8/11816). The classification of metallic blasting materials and the requirements for the age are included in the various parts of IS1--24: IS011124 and GB/T19816 are series standards for metallic blasting materials. New comments on these two series of standards are not included.||tt| | GB/T 19816 specifies the test force method for determining the water content limit of metal grinding for spray cleaning, which is determined by the method of measuring the mass loss during heating.
2 Normative references
The following documents become the references of this part of GB19816. For all reference documents with a reference date of GB19816, all subsequent amendments (excluding errata or revisions) shall not apply to this part. However, if the parties to this document do not reach an agreement on whether to use the latest versions of these documents, all reference documents without reference shall not apply to this part. Special flash can be months of parts, the new wave center is applicable to the dry part,
GB/T198-5.120H05 coating through the steel surface treatment spray cleaning gold thickness test method 1 Guo division, detailed S2 [55, D
3 equipment
In addition to the normal laboratory equipment, it should also include a good equipment: 3.1 about, standard scene precision U,01g,
3.2 drying, constant temperature capacity 11 °
3.3 container or tray. Point and have enough volume to make the sample level can be selected 1 layer. 3.4 Desiccant, containing a desiccant such as cobalt chloride gel. 4 Sampling
According to the provisions of TT1S81G, 2001, take a representative sample of the test product and seal it for storage. 5 Step
Take two samples for measurement.
5.1 Test sample
Place the sample in the container (3.5) into the container (3.2). Keep the container at room temperature for 15 minutes. Then move the container to the container (3.4) and cool it down. Use a large balance (31) to weigh the quality of the container and compare it with 1. Then use the container to weigh 10 grams of test material, accurately to 5.2 determination
Put the container with the test material into a drying oven (S.2) containing only (11C-5) and dry it for a few minutes: then weigh the container until the remaining moisture is cooled in the drying chamber: then weigh the mass of the dried material in the container to an accuracy of 0.1 and calculate the moisture content M of the dry test material. Express it as a percentage according to the formula (1): = mx 100
The numerical value of the mass of the test sample before heating and drying, the unit is g (g); the numerical value of the mass of the test sample after heating for ten minutes, the unit is g (). If the two determination results differ by more than .05% (absolute value), then according to Chapter : Calculate the average value of the two valid determination results. The calculation result is accurate to 0.01%. 7
Test report
The test report shall include the following contents: According to the international standard C1616.7--2005 (IS111253, core) the test results: the difference between the test method and the standard;
Test period:
Current tester. Www.bzxZ.net
Steel Record A
(Density Record)
GA/T 19816.7—2005/1S0) 11125-7:1993 International Standard for Density Materials for Radiation Cleaning 1S0) 1124 ... Part: Steel wire segment,
1S0) 11125° before coating * The surface of the material is cleaned by gold grinding. The following parts are composed of: Part 1: Determination of particle size distribution:
Part 2: Determination of particle size distribution:
Part 3: Determination of hardness:
Part 4: Determination of apparent rigidity:
Part 5: Determination of particle percentage and microstructure:
Part 6: Determination of external impurities:
Part 7: Determination of moisture content; |tt||· Determination of the partial ignition characteristics
The national standard corresponding to the international standard "blast cleaning as abrasive for metals" is listed as follows: G0/T9938.1-2002 Technical requirements for the treatment of metallic materials for blast cleaning before coating - Part 1: Guidelines and classification 1) 124-11995.M)
B/T13816.1-2C35 Test method for metallic materials for blast cleaning before treatment of the material - Part 1: Sample [S0111 35-1993,11F
G/T1981622305 Determination of the hardness of steel surface before coating (0111252:1,1) B/T10816.32005 Determination of the hardness of steel surface before coating (IS11125-%1993.JDT) GBT1616.42005 Determination of the surface appearance of materials before coating (0111254)
GB/T1S816.5.2005 Steel coated with paint.Surface treatment - Test methods for metallic abrasives for blasting - Part 2: Test methods for metallic abrasives for blasting - Part 3: Test methods for metallic abrasives for spraying - Part 4: Test methods for metallic abrasives for spraying - Part 5: Determination of percentage of oxygen in the particles (ISO11125-5:1973m)T)G3/T19826.S2005 Determination of foreign matter in the surface treatment of steel materials before coating (ISO11125-513II) Test methods for metallic abrasives for spray cleaning - Part 3: GB/T1986.7-2005 Test methods for metallic abrasives for blasting on steel surfaces before coating with dyes - Part 7: Water content (IS11125-7:1993IDT)
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