GB/T 1775-2009 English PDF

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GB/T 1775-2009: Superfine gold powder
Status: Valid

GB/T 1775: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 1775-2009	259	Add to Cart	3 days	Superfine gold powder	Valid
GB/T 1775-1995	319	Add to Cart	3 days	Superfine gold powders	Obsolete
GB 1775-1988	RFQ	ASK	3 days	Superfine gold powder	Obsolete

Similar standards

GB/T 17472   GB/T 17473.2   GB/T 17473.5   GB/T 1776   GB/T 1777   GB/T 1774   

Basic data

Standard ID: GB/T 1775-2009 (GB/T1775-2009)
Description (Translated English): Superfine gold powder
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H68
Classification of International Standard: 77.150.99
Word Count Estimation: 11,196
Date of Issue: 2009-01-05
Date of Implementation: 2009-11-01
Older Standard (superseded by this standard): GB/T 1775-1995
Quoted Standard: GB/T 1774-2009; GB/T 5060; GB/T 5162; GB/T 11066; GB/T 18035; GB/T 19077.1
Regulation (derived from): PRC 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 powder, test methods, inspection rules and signs, packaging, transport, storage and purchase order (or contract) content. This standard applies to the ultrafine powder used in electronic paste.

GB/T 1775-2009: Superfine gold 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 gold powder ICS 77.150.99 H68 National Standards of People's Republic of China Replacing GB/T 1775-1995 Superfine 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 1775-1995 "ultrafine powder." This standard compared with GB/T 1775-1995, the main changes are as follows. --- Original Standard Grades FAuH-1 revised PAu-3.0; --- Provisions of the mass fraction of the raw materials used for preparing ultrafine powder gold is not less than 99.95%; --- Increase the burning rate, particle size distribution and other requirements; --- Powder specific surface area of \u200b\u200bthe original standard of 1.85m2/g ~ 1.95m2/g revised > 1.0m2/g; --- Increasing the particle size characteristic parameters D10, D50, D90; --- Powder bulk density of the original standard of 6.0g/cm3 ~ 6.2g/cm3 revised ≤7.0g/cm3; --- Powder tap density of the original standard of 6.8g/cm3 ~ 6.9g/cm3 revised ≤8.0g/cm3. 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. Li Shihong, do not destroy gold, Wei Lihong to Lei. This standard replaces the standards previously issued as follows. --- GB 1775-1988, GB/T 1775-1995. Superfine Powder

1 Scope

This standard specifies the requirements for ultra-fine 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 use of ultra-fine powder electronic slurry.

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 1774-2009 silver powder 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 11066 (all parts) Methods for chemical analysis of gold GB/T 18035 method of precious metals and their alloys GB/T 19077.1 laser diffraction particle size analysis

3 Requirements

3.1 Requirements for raw materials Preparation of ultrafine powder with a mass fraction of the raw material is not less than 99.95% gold. 3.2 grades and marks 3.2.1 According to GB/T 18035 grade is expressed as. PAu-3.0. 3.2.2 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%. 3.3 Chemical composition Chemical composition of ultrafine powder shall meet the requirements of Table 1. Table 1% Impurity element contents (mass fraction), not more than Pt Pd Rh Ir Ag Cu Ni Fe Pb Al Sb Bi Total amount of impurities (mass fraction) no greater than 0.0010.0010.0010.0010.0020.0010.0010.0010.0010.0010.0010.001 0.01 NOTE. minus one hundred percent gold content of impurities in solid form measurement of the balance of the total. Burning rate 3.4 Burning rate test conditions and ultra-fine powder burning rate shall comply with the provisions of Table 2. Table 2 Temperature/℃ soaking time/min atmosphere burning rate /% 11060 Atmospheric ≤0.5 53830 Atmospheric ≤1.0 ......

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