SJ/T 10226-1991 Determination of density of potassium silicate solution for electronic industry SJ/T10226-1991 Standard download decompression password: www.bzxz.net

Electronic Industry Standard of the People's Republic of China SJ/T 10226~10227 ---91
Potassium silicate solution for use in electronics industry
Determination of density and viscosity
Issued on 1991-05-28
Implemented on 1991-17-01
Issued by the Ministry of Machinery and Electronics Industry of the People's Republic of China
Electronic Industry Standard of the People's Republic of China for use in electronics industry
Determination of density of potassium silicate solution
Potassium silicate solution for use in electronics industry
The following table contains the determination method of density and viscosity of potassium silicate solution for use in electronics industry. 1 Subject content and scope of application
This standard describes the determination method of density and viscosity of potassium silicate solution for use in electronics industry. The standard is applicable to the determination of density of potassium silicate solution for use in electronics industry. Principle
SJ/T 10226—91
At 23 degrees, the amount of water in the test period can be determined by dividing the water content by a ratio plate. According to the detailed description of the test, the sample is 3 degrees before the test.
3.1 Analysis unevenness: drop 3.0007g.
3.2 The bottle size is 3: mm, the plate is 25..1 or 10 ml. The Ministry of Machinery and Electronics Industry of the People's Republic of China approved it on 1991-05-28. 1991-12-}: Implementation
3.3 The width of the bottle is 0.2
S.1/r10226-91
The width of the bottle should be 2.14. The measurement step is difficult. bzxz.net
The specific gravity bottle should be washed together, dried, and cooled to C.3711. Fill the bottle with steam and leave it at 20-0.5°C. Put it into the water bottle and keep it at 0.535 to make the temperature reach a flat level. Then take out the water from the water bottle, pour out the water from the water bottle and make it flat. Adjust the plate light to 2.5" to fill the specific gravity bottle. Put the specific gravity bottle into the water belt and measure the amount of the test column by 1 meter + drive: 20% by the formula. Where m is the sample mass. The mass of one volume of water is 30% (<3.9982/ml) |5J/T10225-91
Appendix A
Determination of density of potassium silicic acid cold liquid for electronic industry by ratiometric method (reference)
China Service Requests for Reference to the Standardization of Latex (5687) for the Determination of density of potassium silicic acid liquid products for electronic industry by ratiometric method.
A1 Instrument
A1.1 Quantity: 250ml
A1.2 Hydrometer: Scale division UC: 3/ml. 41.3 Constant temperature water drop: Should be able to keep the temperature control agent at 20-5.51.4 Thermometer: 0~50(±3.2)
42 Determination steps 42.1 Take about 250ml of sample and adjust its temperature to 2U ± G.5. 2.2 Put the sample into the temperature-controlled cylinder and slowly adjust it to its normal weight. When the specific gravity reaches its balance value, record the density after it returns to the equilibrium position. 43 The result is the test density value expressed in g/m2. Additional remarks: This standard was proposed by the Ministry of Electronics Industry of the People's Republic of China. The standard was established by Beijing Chemical Reagent Factory No. 2. The main contributors to this standard are: Liu Baofu
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