GB/T 1774-2009 English PDF

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GB/T 1774-2009: Superfine silver powder
Status: Valid

GB/T 1774: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 1774-2009	259	Add to Cart	3 days	Superfine silver powder	Valid
GB/T 1774-1995	399	Add to Cart	3 days	Superfine silver powders	Obsolete
GB 1774-1988	RFQ	ASK	3 days	Superfine silver powder	Obsolete

Similar standards

GB/T 17472   GB/T 17473.2   GB/T 17473.5   GB/T 1776   GB/T 1777   GB/T 1775   

Basic data

Standard ID: GB/T 1774-2009 (GB/T1774-2009)
Description (Translated English): Superfine silver powder
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H68
Classification of International Standard: 77.150.99
Word Count Estimation: 11,112
Date of Issue: 2009-01-05
Date of Implementation: 2009-11-01
Older Standard (superseded by this standard): GB/T 1774-1995
Quoted Standard: GB/T 1773-2008; GB/T 5060; GB/T 5162; GB/T 15555.2; GB/T 18035; GB/T 19077.1
Adopted Standard: GB/T 19077.1
Regulation (derived from): National Standard Approval Announcement 2009 No.2 (Total No.142)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the requirements for ultra-fine silver, test methods, inspection rules and signs, packaging, transport, storage and purchase order (or contract) content. This standard applies to the electronics industry with ultra-fine silver.

GB/T 1774-2009: Superfine silver 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 silver powder ICS 77.150.99 H68 National Standards of People's Republic of China Replacing GB/T 1774-1995 Silver 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 1774-1995 "silver powder." This standard compared with GB/T 1774-1995, the main changes are as follows. --- Original standard product designation revision of PAg-G0.2, PAg-G2.0, PAg-G7.0. --- Increasing the particle size characteristic parameters D10, D50, D90. --- Using GB/T 19077.1 "laser diffraction particle size analysis' ultrafine silver particle size measured and indicated particle size characteristics parameter. --- The electronic products lead-free, cadmium international trends, increase harmful impurity elements Cd maximum allowable amount of 0.001%. --- Increase the burning rate, specific surface area, particle size distribution and other requirements. Appendix A of this standard is a normative appendix. 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. Drafters of this standard. Zhao Ling, Liu Jisong, Huang Fuchun, Chen Fusheng, Ma Xiaofeng, to Lei. This standard replaces the standards previously issued as follows. --- GB 1774-1988, GB/T 1774-1995. Silver powder

1 Scope

This standard specifies the requirements for ultra-fine silver, 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 silver.

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 1773-2008 silver flake Determination of GB/T 5060 metal powder bulk density Part II. Scott capacity meter method 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 Depending on the silver powder particle size (D50) size, the product is divided into three categories, respectively, according to GB/T 18035 the grade. PAg- G0.2, PAg-G2.0, PAg-G7.0. 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 Chemical composition of fine silver powder shall meet the requirements in Table 1. Table 1% Ag content (Mass fraction) not less than Impurity content (mass fraction), not more than Total Cu Ni Fe Pb Al Sb Bi Cd impurity Pt Pd Au Rh Ir 0.0020.0020.0020.0010.001 99.95 0.01 0.05 0.005 0.01 0.0010.0050.0010.0020.001 Note. The silver content of impurities in the table minus one hundred percent real margin for the total. 3.3 The specific surface area, particle size, bulk density, tap density Silver powder specific surface area, particle size, bulk density, tap density specified in Table 2. If the demand side, there are special requirements for ultra-fine silver, for Both sides need to be agreed. ......

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