GB/T 5162-2021_English: PDF (GB/T5162-2021)
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 5162-2021 | English | 95 |
Add to Cart
|
0--9 seconds. Auto-delivery
|
Metallic powders -- Determination of tap density
| Valid |
GB/T 5162-2021
|
| GB/T 5162-2006 | English | 90 |
Add to Cart
|
0--9 seconds. Auto-delivery
|
Metallic powders -- Determination of tap density
| Obsolete |
GB/T 5162-2006
|
| GB/T 5162-1985 | English | 199 |
Add to Cart
|
2 days [Need to translate]
|
Metallic powders--Determination of tap density
| Obsolete |
GB/T 5162-1985
|
| Standard ID | GB/T 5162-2021 (GB/T5162-2021) | | Description (Translated English) | Metallic powders -- Determination of tap density | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H21 | | Classification of International Standard | 77.160 | | Word Count Estimation | 6,665 | | Date of Issue | 2021-03-09 | | Date of Implementation | 2021-10-01 | | Older Standard (superseded by this standard) | GB/T 5162-2006 | | Drafting Organization | Shenzhen Zhucheng Technology Co., Ltd., Northwest Nonferrous Metal Research Institute, Jiangxi Province Lithium Battery Product Quality Supervision and Inspection Center, Guangdong Academy of Sciences Materials and Processing Institute, Qingyuan Jiazhi New Materials Research Institute Co., Ltd., GEM Co., Ltd., Xi'an Ou China Materials Technology Co., Ltd., Zhejiang Huayou Cobalt Industry Co., Ltd., Zhongwei New Materials Co., Ltd., Beikuang New Material Technology Co., Ltd., Central South University, Industrial Analysis and Testing Center of Guangdong Academy of Sciences, Xi'an Sailong Metal Materials Co., Ltd. , Guangdong Jiana Energy Technology Co., Ltd., Guolian Automobile Power Battery Research Institute Co., Ltd., Western Baode Technology Co., Ltd., Changsha Research Institute of Mining and Metallurgy Co., Ltd., National Standard (Beijing) Inspection and Certification Co., Ltd., Dongguan New Energy Technology Co., Ltd. the company | | Administrative Organization | National Nonferrous Metals Standardization Technical Committee (SAC/TC 243) | | Regulation (derived from) | National Standard Announcement No. 3 of 2021 | | Proposing organization | China Nonferrous Metals Industry Association | | Issuing agency(ies) | State Administration for Market Regulation, National Standardization Administration | | Standard ID | GB/T 5162-2006 (GB/T5162-2006) | | Description (Translated English) | Metallic powders. Determination of tap density | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H21 | | Classification of International Standard | 77.160 | | Word Count Estimation | 7,783 | | Date of Issue | 2006-07-18 | | Date of Implementation | 2006-11-01 | | Older Standard (superseded by this standard) | GB/T 5162-1985 | | Adopted Standard | ISO 3953-1993, IDT | | Drafting Organization | CISRI | | Administrative Organization | National Nonferrous Metals Standardization Technical Committee | | Regulation (derived from) | China National Standard Approval Announcement 2006 No.8 (Total No.95) | | Proposing organization | China Nonferrous Metals Industry Association | | Issuing agency(ies) | Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China | | Summary | This standard specifies the determination of tap density of the powder. Tap density is the density of powder filled in the container is under a predetermined condition after the tap. | | Standard ID | GB/T 5162-1985 (GB/T5162-1985) | | Description (Translated English) | Metallic powders--Determination of tap density | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H62 | | Classification of International Standard | 77.040.30 | | Word Count Estimation | 5,517 | | Date of Issue | 1985/5/8 | | Date of Implementation | 1986/2/1 | | Adopted Standard | ISO 3953-1977, NEQ | | Regulation (derived from) | China Announcement of Newly Approved National Standards 2006 No. 8 (No. 95 overall) | | Proposing organization | The Ministry of Metallurgical Industry of the People Republic of China, China Nonferrous Metals Industry Corporation | | Issuing agency(ies) | National Bureau of Standards |
GB/T 5162-2021
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.160
CCS H 21
GB/T 5162-2021 / ISO 3953:2011
Replacing GB/T 5162-2006
Metallic Powders - Determination of Tap Density
(ISO 3953:2011, IDT)
ISSUED ON: MARCH 9, 2021
IMPLEMENTED ON: OCTOBER 1, 2021
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 6
2 Principle ... 6
3 Symbols ... 6
4 Instruments and Equipment ... 6
5 Sample ... 8
6 Test Procedures ... 8
7 Result Expression ... 9
8 Test Report ... 9
Foreword
This document was drafted in accordance with the rules of GB/T 1.1-2020 Directives for
Standardization - Part 1: Rules for the Structure and Drafting of Standardizing Documents.
This document serves as a replacement of GB/T 5162-2006 Metallic Powders - Determination
of Tap Density. In comparison with GB/T 5162-2006, apart from structural adjustments and
editorial modifications, the main technical changes are as follows:
a) The Scope is modified (see Chapter 1; Chapter 1 of Version 2006);
b) “Upon negotiation and agreement, tapping can also adopt the mode of manual
operation” is deleted (see Chapter 2 of Version 2006);
c) “It shall have an appropriate measuring range and accuracy to satisfy the requirements
in Table 2” is modified into “It shall have an appropriate measuring range to satisfy
the requirements in Table 2, and the measurement mass accuracy is 0.1 g” (see 4.1;
4.1 of Version 2006);
d) The previous Table 2 is deleted (see 4.1 of Version 2006);
e) “The measurement accuracy is 0.1 cm3” is deleted (see 4.2 of Version 2006);
f) The labeling mode of the schematic diagram of the tapping device in Figure 1 is
modified (see Figure 1; Figure 1 of Version 2006);
g) The requirements for the tapping device are modified into “the tapping device allows
the graduated cylinder to be tapped on the anvil, and the tapping shall make the
powder compact, and the surface layer shall not have any looseness” (see 4.3; 4.3 of
Version 2006);
h) “The use of hard rubber boards (approximately 100 mm 100 mm 5 mm) and the
tapping mode of manual operation is only allowed upon negotiation and agreement”
is deleted (see 4.3 of Version 2006);
i) When using a 100 cm3 graduated glass cylinder for the test, the powder apparent
density shall be “ 1” is modified into “1 ~ 4” (see Table 2; Table 3 of Version 2006);
j) “For each type, take 3 samples for the test” is modified into “if possible, 3 samples
shall be taken for the test” (see 5.3; 5.3 of Version 2006);
k) “See Figure 1” is modified into “See NOTE” (see 6.3; 6.3 of Version 2006);
l) “Upon negotiation and agreement, tapping can also be carried out in the following
modes” is deleted (see 6.3 of Version 2006);
Metallic Powders - Determination of Tap Density
1 Scope
This document specifies a method for the determination of tap density, that is, the density of a
powder after it has been tapped in a container under specified conditions.
2 Principle
Put a certain amount of powder in the container and tap it through a tapping device, until the
volume of the powder no longer decreases. The mass of the powder divided by the volume after
tapping gives its tap density.
3 Symbols
The following symbols are applicable to this document, see Table 1.
4 Instruments and Equipment
4.1 Balance
The balance shall have an appropriate measuring range to satisfy the requirements of Table 2,
and the measurement accuracy of mass is 0.1 g.
4.2 Graduated Glass Cylinder
The volume of the calibrated graduated glass cylinder is 100 cm3, and the height of the
graduated portion is approximately 175 mm. The graduations shall be at an interval of 1 cm3
and the measurement accuracy is 0.5 cm3.
The volume of the calibrated graduated glass cylinder is 25 cm3, and the height of the graduated
portion is approximately 135 mm. The graduations shall be at an interval of 0.2 cm3.
The 25 cm3 cylinder is mainly used to measure powder with an apparent density greater than 4
g/cm3, especially metal powders that are difficult to melt, but it may also be used for powder
with a relatively low apparent density.
5---cam.
a Height of stroke.
Figure 1 -- Schematic Diagram of Tapping Device
5 Sample
5.1 The mass of powder required for each test is shown in Table 2.
5.2 Generally, powder is tested in accordance with the receiving status. Under certain
circumstances, dry powder is needed. If the powder is easily oxidized, drying shall be
performed in vacuum or inert gas. If the powder contains volatile substances, then, it cannot be
dried.
5.3 If possible, 3 samples shall be taken for the test.
6 Test Procedures
6.1 Use a test tube brush to clean the inner wall of the graduated cylinder (4.2), if possible, it
can be cleaned with a solvent, for example, acetone solution. If a solvent is used, before use,
the graduated cylinder shall be completely dry.
6.2 Use the balance (4.1) to weigh the mass of the sample in accordance with the requirements
of Table 2, accurate to 0.1 g.
6.3 Put the sample into the graduated cylinder. Pay attention to keep the surface of the powder
in a horizontal state. Place the graduated cylinder on the tapping device (4.3), tap it, until the
volume of the powder no longer decreases (see NOTE).
NOTE: in practice, the minimum number N of tapping required so that the powder volume no
longer changes can be determined. For the same type of powders, except for the specific
......
GB/T 5162-2006
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 77.160
H 21
GB/T 5162-2006 / ISO 3953:1993
Replacing GB/T 5162-1985
Metallic powders - Determination of tap density
(ISO 3953:1993, IDT)
ISSUED ON: JULY 18, 2006
IMPLEMENTED ON: NOVEMBER 01, 2006
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Principles ... 4
3 Symbols ... 4
4 Devices ... 4
5 Samples ... 6
6 Procedures ... 7
7 Expression of results ... 8
8 Test report ... 8
Foreword
This standard identically adopts ISO 3953:1993 Metallic powders -
Determination of tap density.
This standard is the revision of GB/T 5162-1985 Metallic powders -
Determination of tap density.
As compared with GB/T 5162-1985, the main changes are as follows:
- ADD the operation method of manual tapping;
- When using the 25 cm3 graduated glass cylinder to perform test, MODIFY
the criteria to weigh the power mass based on the apparent density;
- CHANGE the vibration frequency of the tapping apparatus from the
previous 250 times ± 15 times per minute to 100 ~ 300 times per minute.
This standard was proposed by National Nonferrous Metal Industry Association.
This standard shall be under the jurisdiction of the National Nonferrous Metal
Standardization Technical Committee.
The Iron and Steel Research Institute is responsible for drafting this standard.
Main drafters of this standard: Wei Yun, Zhu Liran, Li Zhongquan.
The Iron and Steel Research Institute is responsible for interpretation of this
standard.
This standard replaces the previous version as follows:
- GB/T 5162-1985.
Metallic powders - Determination of tap density
1 Scope
This standard specifies a method for determination of tap density, that is, the
density of a powder that has been tapped in a container under specified
conditions.
This standard is applicable to the metal powder (including metallic oxides). The
non-metallic powder may also refer to this standard.
2 Principles
A specified amount of powder in a container is tapped by means of a tapping
apparatus until no further decrease in the volume of the powder takes place.
The mass of the powder divided by its volume after the test gives the tap density.
By agreement, the tapping may be carried out by hand.
3 Symbols
4 Devices
4.1 Balance
It shall have appropriate measuring-range and accuracy to meet the
requirements as shown in Table 2.
5.2 Usually, metal powder is tested in the state when receiving. In some cases,
the powder needs to be dried. If the powder is easily oxidable, the drying
operation shall be carried out in vacuum or inert gas. If the powder contains
easily volatile substance, it shall not be dried. If it cannot be dried, it may be
tested directly.
5.3 Take 3 sets of each sample for testing.
6 Procedures
6.1 Use the test tube brush to clean the inner wall of cylinder (4.2). Or otherwise
it may use solvent to rinse it, such as acetone. If using the solvent, it shall dry
the cylinder thoroughly before using it.
6.2 Use the balance (4.1) to weigh the mass of the specimen according to the
requirements of Table 2, accurate to 0.1 g.
6.3 Place the specimen into the cylinder. Pay attention to make the surface of
the powder in level state. Put the graduated glass cylinder on a vibration device
(4.3). Vibrate it until the volume of the powder does not reduce any more (as
shown in Figure 1).
As agreed through negotiation, the tapping operation may also be performed in
the following methods.
On the hard rubber plate, use hands to vibrate the cylinder, until the volume of
the powder does not reduce any more. When the vibration process approaches
end, vibrate it gently, to avoid the surface of the powder from loosening (see
note 2).
Note 1: In practice, the minimum number of vibrations N as required to reach the point
the volume of powder does not reduce anymore may be determined. For the powders
of same type, except for the number of vibrations as determined during ordinary
experiment and acceptance (not less than N), vibrate it for 2N times. For the metal
......
|