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SN/T 4131-2015: Testing methods for barium extracted from domestic ceramicware
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 4131-2015 | English | 209 |
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Testing methods for barium extracted from domestic ceramicware
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SN/T 4131-2015
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Basic data | Standard ID | SN/T 4131-2015 (SN/T4131-2015) | | Description (Translated English) | Testing methods for barium extracted from domestic ceramicware | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | Y24 | | Classification of International Standard | 81.060.20 | | Word Count Estimation | 9,918 | | Date of Issue | 2015-02-09 | | Date of Implementation | 2015-09-01 | | Quoted Standard | GB/T 5000; GB/T 6682 | | Regulation (derived from) | State-Quality-Inspection-Accreditation [2015] 59 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the atomic absorption spectrophotometry and inductively coupled plasma method Determination of ceramic products for daily use barium dissolution of emission spectrometry. This standard applies to daily use ceramic containers of barium dissolution Determination (including ceramics for daily use with food contact surfaces and beverage containers at the lips). | SN/T 4131-2015: Testing methods for barium extracted from domestic ceramicware---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.
Testing methods for barium extracted from domestic ceramicware
People's Republic of China Entry-Exit Inspection and Quarantine Industry Standard
Method for measuring the amount of cerium dissolved in ceramics for daily use
Released on.2015-02-09
2015-09-01 implementation
People's Republic
The General Administration of Quality Supervision, Inspection and Quarantine issued
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009 and GB/T.20001.4-2001.
This standard is proposed and managed by the National Certification and Accreditation Administration.
This standard was drafted. Shandong Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China, Hunan Entry-Exit Inspection of the People's Republic of China
Epidemic situation.
The main drafters of this standard. Zhang Li, Zhang Miao, He Peng, Xiang Haibo, Sun Jizan, Wang Kegang, Xu Hongmin, Ni Rongjun, Wang Le, Tao Lin.
Method for measuring the amount of cerium dissolved in ceramics for daily use
Warning - Personnel using this standard should have practical experience in formal laboratory work. This standard does not indicate all possible security questions.
question. It is the responsibility of the user to take appropriate safety and health measures and to ensure compliance with the conditions set by the relevant national regulations.
1 Scope
This standard specifies the determination of the amount of cerium dissolved in daily-use ceramic products by atomic absorption spectrophotometry and inductively coupled plasma emission spectrometry.
test methods.
This standard applies to the determination of the amount of bismuth dissolved in daily-use ceramic vessels (including daily ceramic products and food contact surfaces and the lip of the beverage container).
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 5000 Daily Ceramic Terminology
GB/T 6682 Analytical laboratory water specifications and test methods
3 Terms and definitions
The following terms and definitions established by GB/T 5000 apply to this document.
3.1
Contact with food surfacescontactwithfoods
A surface of a ceramic article used or adapted to modulate, contain, or store a food or beverage that is in direct contact with food during use.
3.2
Lip lipandrimarea
The outer surface of the drinking container (such as a cup, mug, teat cup, small bowl, etc.) that is in contact with the lips with a wide upper edge (20.0 ± 1.0) mm.
3.3
Class A product ceramicwareA
Daily-use ceramics (such as cups, bowls, plates, pots, cans, etc.) that come into contact with food and can hold solutions.
3.4
Class B products ceramicwareB
Daily-use ceramics that are in contact with food but cannot contain solutions (eg ceramic shovel, porous baking tray, cake holder, etc.).
3.5
Drinking container drinkingvessel
One of the daily-use ceramics used for ceramics (such as cups, soup bowls, etc.) for beverages or soups.
4 Principle
Using 4% (volume fraction) acetic acid solution, soaking in the dark at 22 °C ± 2 °C for 24h ± 10min, extracting the surface of ceramic products and pottery
The enamel dissolved in the lips of porcelain drinking container products, tested by atomic absorption spectrophotometer and inductively coupled plasma optical emission spectrometry
The content of bismuth.
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