GB/T 1777-2025 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 1777-2025	RFQ	ASK	3 days	Superfine palladium powder	Valid
GB/T 1777-2009	139	Add to Cart	3 days	Superfine palladium powder	Valid
GB/T 1777-1995	199	Add to Cart	2 days	Superfine palladium powder	Obsolete
GB 1777-1988	RFQ	ASK	3 days	Superfine palladium powder	Obsolete

Basic data

Standard ID: GB/T 1777-2025 (GB/T1777-2025)
Description (Translated English): Superfine palladium powder
Sector / Industry: National Standard (Recommended)
Date of Implementation: 2026-03-01
Older Standard (superseded by this standard): GB/T 1777-2009

GB/T 1777-2009: Superfine palladium 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 palladium powder ICS 77.150.99 H68 National Standards of People's Republic of China Replacing GB/T 1777-1995 Ultra-fine palladium 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 1777-1995 "ultra-fine palladium powder." This standard compared with GB/T 1777-1995, the main changes are as follows. --- Original Standard Grades FPdH-1 revised PPd-6.0. --- Cd increased impurity elements of the maximum allowable amount. --- Harmful impurity elements Pb maximum amount allowed by the revised 0.005% 0.001%. --- Palladium powder specific surface area of \u200b\u200bthe original standard 3.0m2/g ~ 4.5m2/g was revised to 8.0m2/g ~ 12.0m2/g. --- Increasing the particle size characteristic parameters D10, D50, D90. --- Palladium powder bulk density of the original standard of 0.70g/cm3 ~ 0.90g/cm3 revised to 0.30g/cm3 ~ 0.40g/cm3. --- Palladium powder tap density of the original standard 1.00g/cm3 ~ 1.25g/cm3 revised to 0.40g/cm3 ~ 0.60g/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. Yuqing Zhi, Zhang Xiaomin, Yang Wen, Li Wenlin, Chen Fusheng, to Lei. This standard replaces the standards previously issued as follows. --- GB 1777-1988, GB/T 1777-1995. Ultra-fine palladium powder

1 Scope

This standard specifies requirements for ultra-fine palladium powder, test methods, inspection rules and signs, packaging, transportation, storage, and purchase order (or contract) within Tolerance and so on. This standard applies to electronic pulp powder and other products using palladium with palladium 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 1420-2004 palladium sponge Determination of GB/T 1479 metal powder bulk density - Part 1. funnel method 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. PPd-6.0. 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 ultra-fine palladium powder shall meet the requirements in Table 1. Table 1% Pd content (Mass fraction) not less than Impurity content (mass fraction), not more than Pt 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. The palladium content of impurities in the table minus one hundred percent real margin for the total. 3.3 The specific surface area, bulk density, tap density Ultra-fine palladium 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) 8.0 to 12.0 0.30 to 0.40 0.40 to 0.60 ......

Image     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 1777-2025_English be delivered?

Answer: Upon your order, we will start to translate GB/T 1777-2025_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 1777-2025_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 1777-2025_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 1777-2025?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 1777-2025 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.