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YS/T 221-2011: Beryllium metal pebbles
Status: Valid YS/T 221: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| YS/T 221-2011 | English | 159 |
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Beryllium metal pebbles
| Valid |
YS/T 221-2011
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| YS/T 221-1994 | English | 199 |
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2 days [Need to translate]
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(Beryllium metal beads)
| Obsolete |
YS/T 221-1994
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PDF similar to YS/T 221-2011
Basic data | Standard ID | YS/T 221-2011 (YS/T221-2011) | | Description (Translated English) | Beryllium metal pebbles | | Sector / Industry | Nonferrous Metallurgy Industry Standard (Recommended) | | Classification of Chinese Standard | H64 | | Classification of International Standard | 77.150.99 | | Word Count Estimation | 6,620 | | Date of Issue | 2011-12-20 | | Date of Implementation | 2012-07-01 | | Older Standard (superseded by this standard) | YS/T 221-1994 | | Quoted Standard | GJB 2513A-2008 | | Regulation (derived from) | ?MIIT Announcement 2011 No.43 | | Issuing agency(ies) | Ministry of Industry and Information Technology | | Summary | This standard specifies the requirements for beryllium metal beads, test methods, inspection rules and signs, packaging, transport, storage, quality certificate and contract (or order form) content. This standard applies to beryllium fluoride, magnesium thermal reduction method were beryllium metal beads. | YS/T 221-2011: Beryllium metal pebbles---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Beryllium metal pebbles
ICS 77.150.99
H64
People's Republic of China Nonferrous Metals Industry Standard
Replacing YS/T 221-1994
Beryllium metal beads
Issued on. 2011-12-20
2012-07-01 implementation
Ministry of Industry and Information Technology of the People's Republic of China released
Foreword
Instead of the standard YS/T 221-1994 "beryllium metal beads."
The main changes compared to "beryllium metal beads" This standard YS/T 221-1994 as follows.
--- Original Grades Be-02, Be-01, Be-1 were changed to Be-1, Be-2, Be-4;
--- Added a product designation Be-3;
--- Be-1 increased the content of Co, B, Cd, Ag, Sm, Eu, Gd, Dy, Li's requirements;
Si content --- Be-1 made 0.006% to 0.01%;
Fe content --- Be-2 made 0.105% to 0.10%;
--- Be-2 in the "128Pa", "67.3Pa", "53Pa" were changed to "1.28 cents target", "0.673 cents target", "0.53 cents target";
--- Be-2 and Be-1 impurity fluctuation range to the original standard 1/2; delete the words "provided in each product allows 1/3 of iron, chromium,
Nickel, manganese, boron, have overrun fluctuation "and" every time supplier for sampling analysis, sampling volume of shipments of 1/3 ~ 1/4 ";
--- Product size from "not less than 1mm" to "not less than 2mm";
--- Inspection Rules "from the date of receipt within six months" with "the date of receipt of the goods within 90 days";
--- Arbitration sampling method, from the "batch by large, medium and small particles sampled" to "uniform sampling";
--- "Net weight of not more than 10kg" changed to "by Batch with barrel, net weight of not more than 30kg".
This standard by the national non-ferrous metals Standardization Technical Committee (SAC/TC243) and focal points.
This standard was drafted. Shuikoushan Hunan Nonferrous Metals Group Co., Ltd., Northwest Rare Metal Materials Research Institute.
The main drafters of this standard. Wang Ping, Li Wei, Li Yufeng, Liu Liuhui, Shu Gang, Dong Qun Wei.
This standard replaces the standards previously issued as follows.
--- YS/T 221-1994;
--- GB n262-1986;
--- YB855-1975.
Beryllium metal beads
1 Scope
This standard specifies the beryllium metal beads requirements, test methods, inspection rules and signs, packaging, transportation, storage, quality certificate and contract
(Or orders) content.
This standard applies to beryllium fluoride magnesium thermal reduction process was beryllium metal beads.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GJB2513A-2008 Methods for chemical analysis of beryllium
3 Requirements
3.1 Categories
Beryllium metal bead according to chemical composition divided into four grades. Be-1, Be-2, Be-3, Be-4.
3.2 Chemical composition
Beryllium metal beads 3.2.1 The chemical composition shall comply with the requirements of Table 1.
Table 1 chemical composition of the metal beryllium beads
Grades Be-1 Be-2 Be-3 Be-4
Impurity
content/%,
no greater than
Fe 0.05 0.10 0.12 0.25
Al 0.02 0.15 0.20 0.25
Si 0.01 0.06 0.08 0.1
Cu 0.005 0.015 0.02 -
Pb 0.002 0.003 0.003 0.005
Zn 0.007 0.01 0.02 -
Ni 0.002 0.008 0.015 0.025
Cr 0.002 0.013 0.015 0.025
Mn 0.006 0.015 0.015 0.028
Co 0.0005 0.0005 0.001 -
B 0.0001 0.0001 0.0001 -
Cd 0.00004 0.00004 0.00004 -
Ag 0.0003 0.0003 0.0003 -
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