GB/T 5329-1985 Test sieves and sieving test terminology GB/T5329-1985 standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Test sieves and test sievingYocabulary
The terms specified in this standard are special terms applicable to test sieves and sieving tests. This standard is equivalent to ISO 2395-1972 "Terms for test sieves and sieving tests" 1 Material to be sieved
1.1 Particle
particle
Discrete monomer of material (regardless of size). 1.2 Agglomerate
agglomerate
Particles that are attached to each other.
1.3 Samplewww.bzxz.net
sample
A representative part taken from a certain amount of material. 1.4 Test sample Test sample 1.5 Charge Test sample or part of a test sample placed on a single test sieve or set of test sieves. 1.6 Apparent bulk density The ratio of the mass of a charge to its volume when placed on the sieve surface. 2 Test sieves 2.1 Sieving medium A surface with regularly arranged holes of the same shape and size. 2.2 Sieve
A device for sieving by placing the sieve surface in a sieve frame 2.3 Test sieve
lest sieve
National Bureau of Standards 1986-08-31 Issued
UDC 621.828.2
:620.1.06
GB 532985
1986-04-01 Implementation
GB 6329-85
A sieve that complies with a test sieve standard specification and is used for particle size analysis of the material to be sieved. 2.4 Qualified test sieve
certified test sieve
A test sieve that has been inspected and identified by a designated specialized agency and is considered to comply with an agreed specification. 2.5 matched test sieve a test sieve that reproduces the test results of a calibration test sieve for a given material within a specified range. 2.6 full set of test sieves a set of test sieves of a given type of sieve surface included in a standard specification. 2.7 regular set of test sieves a set of test sieves selected from a full set of test sieves for particle size analysis. 2.8 irregular set of test sieves a set of test sieves selected from a full set of test sieves for particle size analysis. 2.9 nest of test sieves a set of test sieves, either regular or irregular, assembled with a cover and a receiving tray. 2.0 Screen frame
A rigid frame that fixes the screen surface and limits the scattering of the material to be screened. 2.1f Lid (cover)
A cover that fits tightly on the screen to prevent the material to be screened from escaping. 2.12 Receiver (pan)
A cover that fits tightly under the screen to receive the part of the material that passes through all the screens. 2.13 Aperture size
Aperture size
Indicates the size of the openings on the screen surface.
2.14 Percentage sieving area
The ratio of the total opening area of ​​the screen surface to the total area of ​​the screen surface, expressed as a percentage. 2.15 Waven wire cloth
A screen surface with mesh woven from metal wires. 2.16Wire diameter
wire diameter
The diameter of the wires in a woven net.
2.17Warp
All the longitudinal wires in the net when woven. 2.1BWeft
weft (shoot)
All the transverse wires in the net when woven. 2.19Weave type
type of weave
The way the warp and weft are interwoven.
2.20 Plain weave
GB5829—85
Warp and weft are interwoven in a one-up-tt||-down weaving pattern (Figure 1)
Figure 1 Plain weave
2.21 Twilled weave
Warp and weft are interwoven in a two-up-two-down weaving pattern (Figure 2). 2.22 Perforated plate
porforated plate
A plate with symmetrically arranged holes of the same type. 2.23 Pitch (centres)
The distance between the same positions of two adjacent holes on a perforated plate. 2.24 Hridge width(bar)
The shortest distance between the edges of two adjacent holes on a perforated plate. 2.25 Margin GB 5329B5 Figure 2 Twill Weave The distance between the edge of the perforated plate and the outer edge of the outermost row of holes. 2.26 Plate thickness Plate thickness The thickness of the perforated plate. 2.27 Punching Punch side The punch enters the surface of the perforated plate. 8 Sieving test Test sieving 3.1 Sieving Sieving The process of separating particles of different sizes by one or more sieves. 3.2 Sieving test Test sieving Sieving by one or more test sieves. $.3+ Sieving
dry sieving
Sieving without adding liquid.
3.4 ​​Wet sieving
wet sieving
Sieving with adding liquid.
3.5 Sieving rate
sieving rate
GB 5829—85
The amount of material passing through the sieve in a given time, expressed in mass units or as a percentage of the charge. 3.B Undersize (fines)
The portion of the charge that passes through the specified sieve holes. .7 Oversize (residue)
The portion of the charge that does not pass through the specified sieve holes. 3.8 End point The point at which further sieving does not allow the amount of material to pass through to change the sieving result significantly. 3.8 Near-size particle A particle approximately equal to the size of the sieve opening. 3.10 Blinding The sieve opening is blocked by particles of the material to be sieved. 8.11 Fraction (size fraction) The portion of the material remaining on the test sieve or receiving pan. 4.1 Particle size (sieve size of a particle) The size of the smallest sieve opening through which a particle can pass in the most favorable posture. 4.2 Size analysis by sieving
Size analysis by sieving
The sample is divided into different particle size grades by sieving and the results are reported. 4.3 Particle size distribution curve
Size distribution curve
A graph showing the results of particle size analysis.
4.4 Cumulative aversize distribution curve
Cumulative aversize distribution curve. For each material, the points should be specified in the relevant standards according to the screening rate, liquid transparency in wet screening or other measurable indicators.
GB 5$28—85
In a set of test sieves with decreasing mesh sizes, the cumulative percentage of the mass of each sieve and its corresponding mesh size are plotted. 4.5 Cumulative undersize distribution curve
Cumulative undersize distribution curve In a set of test sieves with decreasing mesh sizes, the cumulative percentage of the mass of each sieve and its corresponding mesh size are plotted.
Additional remarks:
This standard was proposed by the Ministry of Machinery Industry of the People's Republic of China and is under the jurisdiction of the Standardization Research Institute of the Ministry of Machinery Industry. This standard was drafted by Xi'an Cable Factory, Changde Instrument Factory and other units. The main drafters of this standard are Zhang Shuheng and Ding Tiegen.
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