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GB/T 6890-2012Zinc powder (English PDF)

锌粉

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

December 31, 2012

Implementation date

October 1, 2013

Scope

GB/T 6890-2012 is the English-translated version of 锌粉.

GB/T 6890-2012 is the Chinese standard "Zinc powder". Its scope clause reads: This standard specifies the requirements for zinc, test methods, inspection rules, packaging, labeling, transportation, storage, quality certificate, instruction manual And contracts (or orders) content.

This standard applies to metallic zinc or zinc-containing material as raw material, distillation, atomization, electrothermal reduction zinc metal production. The main For metallurgy, paints, dyes, chemicals and pharmaceutical industries use. Its clauses include requirements.

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Document preview — GB/T 6890-2012

National Standard of the People's Republic of China

ICS: 77.150.60
Classification: H 62
Replacing: GB/T 6890-2000

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

1 Scope
2 Normative references
3 Requirements
3.1 Categories
3.2 Chemical composition

1 Scope

This standard specifies the requirements for zinc, test methods, inspection rules, packaging, labeling, transportation, storage, quality certificate, instruction manual

And contracts (or orders) content.

This standard applies to metallic zinc or zinc-containing material as raw material, distillation, atomization, electrothermal reduction zinc metal production. The main

For metallurgy, paints, dyes, chemicals and pharmaceutical industries use.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated edition applies to this article

Member. For undated references, the latest edition (including any amendments) applies to this document.

GB/T 5314 powder metallurgy method of sampling

GB/T 6524 metal powder particle size distribution measuring gravitational sedimentation light transmission method

HG/T3852 pigment residue on sieve assay

3 Requirements

3.1 Categories

3.1.1

zinc powder by chemical composition is divided into one, two, three, four four grades.

3.1.2

Zinc divided according to particle size 30µm, 45µm, 90µm, 125µm four specifications.

3.2 Chemical composition

3.2.1

The chemical composition of zinc should meet the requirements in Table 1.

Table 1 chemical composition of zinc powder grade

Chemical composition mass fraction /%

Master grade, not less impurity, not more than

Full zinc metal zinc Pb Fe As Cd acid insolubles

A 0.05 0.0005 98 96 0.1 0.1 0.2

Two 9894 0.0005 0.2 0.2 0.2 0.2

Three 9692 0.3 - 0.0005 - 0.2

Four 92 88 - - - - 0.2

Note. The material is zinc raw materials to produce four zinc, sulfur content should not exceed 0.5%.

3.2.2

Zinc coatings used as contact with drinking water, the impurities of lead and cadmium content should be not more than 0.01%, respectively.

3.2.3

Production lithopone with zinc, lead content may not predetermined; insurance powder production with zinc, in addition to zinc and sieve residue, the other to

Points can not predetermined.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 21 pages — is available in the English PDF.

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Editions of GB/T 6890

Edition	Title	Revision	Status
GB/T 6890-2012	Zinc powder	current edition	Current
GB/T 6890-2000	Zinc powder	previous edition	Superseded

This page sells the current edition, GB/T 6890-2012. Earlier editions are listed for reference only.

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