GB/T 1776: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 1776-2025 | English | RFQ |
ASK
|
3 days [Need to translate]
|
Superfine platinum powder
| Valid |
GB/T 1776-2025
|
| GB/T 1776-2009 | English | 139 |
Add to Cart
|
3 days [Need to translate]
|
Superfine platinum powder
| Valid |
GB/T 1776-2009
|
| GB/T 1776-1995 | English | 199 |
Add to Cart
|
2 days [Need to translate]
|
Superfine platinum powder
| Obsolete |
GB/T 1776-1995
|
| GB 1776-1988 | English | RFQ |
ASK
|
3 days [Need to translate]
|
Superfine platinum powder
| Obsolete |
GB 1776-1988
|
Basic data | Standard ID | GB/T 1776-2025 (GB/T1776-2025) | | Description (Translated English) | Superfine platinum powder | | Sector / Industry | National Standard (Recommended) | | Date of Implementation | 2026-03-01 | | Older Standard (superseded by this standard) | GB/T 1776-2009 | GB/T 1776-2009: Superfine platinum powder---This is a DRAFT version for illustration, not a final translation.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.
Superfine platinum powder
ICS 77.150.99
H68
National Standards of People's Republic of China
Replacing GB/T 1776-1995
Superfine platinum powder
Posted 2009-01-05
2009-11-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard replaces GB/T 1776-1995 "superfine platinum powder."
This standard compared with GB/T 1776-1995, the main changes are as follows.
--- Original Standard Grades FPtH-1 revised PPt-3.0;
--- Increasing the impurity elements of the maximum allowable amount of Cd, Pb harmful impurity element by the maximum allowable amount was revised to 0.005%
0.001%;
--- Platinum powder surface area than the original larger than the standard 7.0m2/g was revised to 3.5m2/g ~ 7.0m2/g;
--- Increasing the particle size characteristic parameters D10, D50, D90;
--- Platinum powder bulk density of the original standard of 0.4g/cm3 ~ 0.7g/cm3 revised to 0.7g/cm3 ~ 1.0g/cm3;
--- Platinum powder tap density of the original standard 0.7g/cm3 ~ 1.1g/cm3 revised to 1.0g/cm3 ~ 1.4g/cm3.
The standard proposed by China Nonferrous Metals Industry Association.
This standard Nonferrous Metals by the National Standardization Technical Committee.
This standard is drafted by. Your research Platinum Limited.
Participated in the drafting of this Standard. China Nonferrous Metals Industry Standards and Metrology Institute for Quality.
The main drafters of this standard. Yang Wen, Yuqing Zhi, Zhang Xiaomin, Li Wenlin, Chen Fusheng, to Lei.
This standard replaces the standards previously issued as follows.
--- GB 1776-1988, GB/T 1776-1995.
Superfine platinum powder
1 Scope
This standard specifies requirements for ultra-fine platinum powder, test methods, inspection rules and signs, packaging, transportation, storage, and purchase order (or contract) within
Tolerance and so on.
This standard applies to the electronics industry with ultra-fine platinum powder.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 1419-2004 spongy platinum
GB/T 1479 metal powder bulk density determination funnel method - Part 1
GB/T 1774-2009 silver powder
Determination of GB/T 5162 metal powder tap density
GB/T 15555.2 solid waste copper, zinc, lead, and cadmium - Atomic absorption spectrophotometry
GB/T 18035 method of precious metals and their alloys
GB/T 19077.1 laser diffraction particle size analysis
3 Requirements
3.1 Grades and marks
3.1.1 According to GB/T 18035 grade is expressed as. PPt-3.0.
3.1.2 Particle size distribution marked. D90 represents the cumulative 90% particle diameter at, D50 represents the cumulative particle diameter at 50%, D10 represents tired
Plot in the particle size at 10%.
3.2 Chemical composition
Superfine platinum powder chemical composition shall be in accordance with Table 1.
Table 1%
Pt content
not less than
Impurity content, not more than
Pd Rh Ir Au Ag Cu Ni Fe Pb Al Si Cd
Total amount of impurities
(Mass fraction)
no greater than
99.95 0.02 0.02 0.02 0.05 0.02 0.0050.0050.0050.0050.0010.0050.0050.001
NOTE. platinum mass fraction of impurities in the table minus one hundred percent real margin for the total.
3.3 The specific surface area, bulk density, tap density
Superfine platinum powder specific surface area, bulk density, tap density should be in accordance with Table 2.
Table 2
The specific surface area /
(M2/g)
Bulk density /
(G/cm3)
Tap density /
(G/cm3)
3.5 ~ 7.0 1.0 ~ 0.7 1.0 ~ 1.4
|