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SN/T 1138-2002: Metallic powders. Determination of particle size by dry sieving for import and export
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 1138-2002 | English | 259 |
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Metallic powders. Determination of particle size by dry sieving for import and export
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SN/T 1138-2002
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PDF similar to SN/T 1138-2002
Standard similar to SN/T 1138-2002 GB/T 6003.1 GB/T 21649.2 GB/T 19077 Basic data | Standard ID | SN/T 1138-2002 (SN/T1138-2002) | | Description (Translated English) | Metallic powders. Determination of particle size by dry sieving for import and export | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | A28 | | Word Count Estimation | 8,848 | | Date of Issue | 2002-08-02 | | Date of Implementation | 2003-01-01 | | Quoted Standard | GB/T 1479-1984; GB/T 5329-1985; GB/T 6005-1997; ISO 2591 | | Adopted Standard | ISO 4497-1983, MOD; ISO 2591-1-1988, NEQ; ASTM B214-1999, NEQ | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China | | Summary | This standard specifies the determination of the composition of the metal powder size dry sieving test methods. This standard applies to dry, free of metal powder lubricant. Obviously does not apply to anisometric shape metal powder, such as flakes. This standard does not apply to all or most of the metal powder size of less than 45��m. | SN/T 1138-2002: Metallic powders. Determination of particle size by dry sieving for import and export
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Metallic powders.Determination of particle size by dry sieving for import and export
People's Republic of China Entry-Exit Inspection and Quarantine Industry Standard
Import and export metal powder particle size
Dry screening test
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(ISO 4497.1983, Metalicpowders-Determinationof
Particleizebydrysieving, MOD)
--Approved -- implementation
People's Republic
The General Administration of Quality Supervision, Inspection and Quarantine issued
Foreword
This standard is modified by the international standard ISO 4497.1983 "dry screening test method for metal powder particle size composition" (English version).
This standard ensures that the main content is the same as ISO 4497.1983, taking into account the operability of the standard, in the normative reference document
In addition, GB stew T1479-1984 "Metal powder bulk density determination Part 1 funnel method" and GB stew T5329-1985
"Test sieve and screening test terminology" standard. Refer to ISO 2591-1.1988 "Screening test Part 1 using wire woven mesh test
Screening Method for Screening and Perforated Plate Test Screens and ASTM B214-1999 Standard for Screening Test Methods for Granular Metal Powders, Added
The maintenance, calibration, etc. of the test sieve are listed in the form of an appendix.
Appendix A and Appendix B of this standard are informative annexes.
This standard is proposed and managed by the National Certification and Accreditation Administration.
This standard was drafted. Liaoning Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China.
Drafters of this standard. Dong Xiuwen, Li Yan, Ouyang Changjun, Li Guangcheng.
This standard is the industry standard for inspection and quarantine issued for the first time.
stew -
Import and export metal powder particle size
Dry screening test
range
This standard specifies a dry screening test method for determining the particle size composition of metal powders.
This standard applies to dry, lubricant-free metal powders. It is not suitable for metal powders with obviously anisometric shapes, such as flake powder.
This standard does not apply to all or most metal powders less than 45μm in size.
The terms in the following documents become the terms of this standard by reference to this standard. All dated references, all subsequent
Modifications (not including errata content) or revisions do not apply to this standard, however, research that encourages agreements based on this standard is
No, the latest version of these files can be used. For undated references, the latest edition applies to this standard.
GB.Stew T1479-1984 Determination of bulk density of metal powders - Part 1 - Part 1 ( ISO 3923-1. 1979, MOD)
GB Stew T5329-1985 Test sieve and screening test terminology (ISO 2395.1972, MOD)
GB stew T6005-1997 test sieve wire woven mesh, perforated plate and electroformed thin plate mesh size
(ISO 565.1990, MOD)
ISO 2591 screening test
Principle
A set of woven mesh test sieves are arranged in order according to the size of the sieve holes, and the metal powder is divided into different grains by a vibration test sieve.
Degree level.
The mass of the particle size grade remaining on each test sieve and passing through the finest test sieve was weighed.
Instrument
. A calibrated non-magnetic wire braided screen with different basic mesh sizes. The screen size of each mesh size shall be installed in the nominal
A non-magnetic metal screen frame having a diameter of.200 mm and a nominal depth of between 25 mm and 50 mm.
Note. Typically, the test sieve has a nominal depth of 50 mm.
The screen frames should be nested one after the other. The top of the whole set of test sieves should have a top cover, and the bottom of the bottom test sieve should be equipped with a receiving tray.
The sieve size of the test sieve should be selected according to the main size of GB stew T6005-1997 (R20 stew 3), but if the mesh size is not the same
Suitable, can be replaced partially or completely by the supplementary size (R40 stew 3 or R20).
The sieve size of the test sieve should be suitable for the particle size composition of the sample to be sieved (see 7).
Note. Unconventional test sieves may be used in whole or in part with the agreement of the supplier and the purchaser.
Maintenance and calibration of the test sieve are shown in Appendix A and Appendix B, respectively.
. Mechanical shaker (see 6.2 if used).
. Balance, measuring range of at least 100g, accuracy ± 0.05g.
. Soft brush.
Preparation of samples
. Generally, the screening test should be performed according to the receiving state. The powder can be dried if necessary. However, if the powder is easily oxidized, it should
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