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GB/T 21651-2018 English PDF

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GB/T 21651-2018: Regenerated zinc and zinc alloy ingots
Status: Valid

GB/T 21651: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 21651-2018English199 Add to Cart 3 days [Need to translate] Regenerated zinc and zinc alloy ingots Valid GB/T 21651-2018
GB/T 21651-2008English319 Add to Cart 3 days [Need to translate] Secondarily zinc alloy ingots Obsolete GB/T 21651-2008

PDF similar to GB/T 21651-2018


Standard similar to GB/T 21651-2018

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Basic data

Standard ID GB/T 21651-2018 (GB/T21651-2018)
Description (Translated English) Regenerated zinc and zinc alloy ingots
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H69
Classification of International Standard 77.150.60
Word Count Estimation 10,156
Date of Issue 2018-09-17
Date of Implementation 2019-06-01
Older Standard (superseded by this standard) GB/T 21651-2008
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 21651-2018: Regenerated zinc and zinc alloy ingots

---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.
Regenerated zinc and zinc alloy ingots ICS 77.150.60 H69 National Standards of People's Republic of China Replace GB/T 21651-2008 Recycled zinc and zinc alloy ingots Published on.2018-09-17 2019-06-01 implementation State Market Supervisory Administration China National Standardization Administration issued

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 21651-2008 "Recycled Zinc Alloy Ingot". Compared with GB/T 21651-2008, except editorial modification To change as follows. ---The standard name was changed from "Recycled Zinc Alloy Ingot" to "Recycled Zinc and Zinc Alloy Ingot"; --- Increased regenerative zinc ingots, regenerative zinc alloy ingots for hot-plating, and increased the corresponding chemical composition requirements (see 4.1, 4.2); ---Modified the chemical composition of ZSZnAl4, ZSZnAl4Cu0.5, ZSZnAl4Cu1 grades in reclaimed zinc alloy ingots for casting (see 4.2.2); --- Increased the grade of ZSZnAl4Cu0.2 for reclaimed zinc alloy ingots for casting (see 4.2.2); ---Add other requirements (see 4.5); --- Added order form (or contract) content (see Chapter 8). This standard was proposed by the China Nonferrous Metals Industry Association. This standard is under the jurisdiction of the National Nonferrous Metals Standardization Technical Committee (SAC/TC243). This standard is drafted by. Yunnan Xiangyun Feilong Recycling Technology Co., Ltd., Nonferrous Metals Technology and Economic Research Institute, Xinlian Environmental Protection Technology Co., Ltd. Participated in the drafting of this standard. Tunxi Blue Sky High-Tech Co., Ltd. The main drafters of this standard. Yang Long, Zhang Yi, Han Zhiwei, Yang Qiguang, Zhang Xiaobing, Li Chunlin, Li Zhonghua, Zeng Yi, Yang Hongzhang, Bai Rubin. The previous versions of the standards replaced by this standard are. ---GB/T 21651-2008. Recycled zinc and zinc alloy ingots

1 Scope

This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation, storage and quality certificates of recycled zinc and zinc alloy ingots. And the contents of the order form (or contract). This standard is applicable to regenerated zinc and zinc alloy ingots produced by smelting and processing of zinc secondary materials. Used for galvanizing, casting, alloying, Chemical, electrical and other fields.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. For the undated references, the latest edition (including all amendments) applies to this document. GB/T 8170 Numerical Rounding Rules and Representation and Determination of Limit Values Methods of chemical analysis of zinc and zinc alloys - Part 1 . Determination of aluminium content chrome azurol S - polyethylene glycol octyl phenyl Ether-hexadecyl bromide spectrophotometry, CAS spectrophotometry and EDTA titration Methods for chemical analysis of zinc and zinc alloys - Determination of cadmium content by flame atomic absorption spectrometry Methods for chemical analysis of zinc and zinc alloys - Determination of copper content - Diethyldithiocarbamic acid lead spectrophotometric method, Flame atomic absorption spectrometry and electrolysis GB/T 12689.5 Methods for chemical analysis of zinc and zinc alloys - Determination of iron content - sulfosalicylic acid spectrophotometric method and flame atomic absorption Spectroscopy GB/T 12689.6 Methods for chemical analysis of zinc and zinc alloys - Determination of lead content Methods of chemical analysis of zinc and zinc alloys - Part 7. Determination of magnesium content by flame atomic absorption spectrometry GB/T 12689.9 Methods for chemical analysis of zinc and zinc alloys - Determinations by mass spectrometric method Methods for chemical analysis of zinc and zinc alloys - Determination of tin content - Phenyl ketone - cetyltrimethyl bromide spectrophotometric method GB/T 26043 zinc and zinc alloy sampling method YS/T 310 zinc alloy ingot for hot plating

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Zinc secondary material reusablezincmaterials A zinc-containing material that is distinguished from zinc minerals that naturally occur in nature. Note. The zinc secondary materials include three types. The first category is zinc-associated lead ore, copper ore and iron-bearing materials produced during the production of lead, copper and iron. Such as lead slag slag, copper soot, blast furnace gas ash (mud). The second category is zinc-containing waste produced during the use of zinc-containing products, including the use of hot-dip galvanizing. The galvanizing slag generated during the anti-corrosion hot-dip plating of steel is produced by using the electroplating mud generated during zinc plating and pressing the finished product with a zinc alloy ingot for casting. Containing zinc residue, etc. The third category is scrapped zinc-containing end-consumer products such as brass alloys, cast alloy products, dry battery shells and galvanized scrap in recycling. During the smelting process, the zinc in the galvanized layer of the steel is volatilized in a gaseous state and the soot collected by the flue gas entering the dust collecting system. 3.2 Recycled zinc ingot regeneratedzincingots Fully adopting various zinc secondary materials, generating yin by processes other than fluorine, enrichment, leaching, purification, electrowinning, etc., independent of the original zinc ore smelting

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