|
US$239.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 32462-2015: Determination of the migration of antimony in polyester resin and products -- Atomic fluorescence spectrophotometer
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 32462-2015 | English | 239 |
Add to Cart
|
3 days [Need to translate]
|
Determination of the migration of antimony in polyester resin and products -- Atomic fluorescence spectrophotometer
| Valid |
GB/T 32462-2015
|
PDF similar to GB/T 32462-2015
Basic data | Standard ID | GB/T 32462-2015 (GB/T32462-2015) | | Description (Translated English) | Determination of the migration of antimony in polyester resin and products -- Atomic fluorescence spectrophotometer | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G32 | | Classification of International Standard | 83.140.01 | | Word Count Estimation | 11,142 | | Date of Issue | 2015-12-31 | | Date of Implementation | 2016-07-01 | | Quoted Standard | GB/T 5009.156; GB/T 6682 | | Regulation (derived from) | State Standard Announcement 2015 No.43 | | 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 method for the determination of antimony migration in polyester (polyethylene terephthalate) resin and its molded articles by atomic fluorescence spectrometry. This standard applies to thermoplastic polyester (polyethylene terephthalate) resin and its products in the determination of antimony migration. | GB/T 32462-2015: Determination of the migration of antimony in polyester resin and products -- Atomic fluorescence spectrophotometer
---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.
Determination of the migration of antimony in polyester resin and products - Atomic fluorescence spectrophotometer
ICS 83.140.01
G32
National Standards of People's Republic of China
Determination of antimony transport in polyester resin and its molded articles
Atomic fluorescence spectrophotometry
2015-12-31 released
2016-07-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Management Committee released
Directory
Preface III
1 Scope 1
2 normative reference document 1
Principle 1
4 Reagent 1
5 instrument 2
6 Instrument Condition 2
7 Analysis Step 2
Calculation and presentation of results 3
9 detection limit 4
10 precision 4
Foreword
This standard is drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed and centralized by the National Standardization Technical Committee for Quality Assurance (SAC/TC374).
The main drafting unit of this standard. National Packaging Product Quality Supervision and Inspection Center (Guangzhou), Guangzhou Quality Supervision and Inspection Research Institute, Guangzhou letter
Lianzhi Tong Industrial Co., Ltd.
The main drafters of this standard. Xi Shaofeng, Xie Yongping, Li Huiyong, Xie Wenjie, Wang Jicai, Lai Hongjuan, Zhang Kedong, Tan Jianhua,
Huang Jinchao, Zhang Husong, Zhao Tiantian, Huang Yining, Gong Yongquan.
Determination of antimony transport in polyester resin and its molded articles
Atomic fluorescence spectrophotometry
1 Scope
This standard specifies the use of atomic fluorescence spectrophotometric determination of polyester (polyethylene terephthalate) resin and its molybdenum migration
Methods.
This standard applies to the determination of the amount of antimony in the thermoplastic polyester (polyethylene terephthalate) resin and its molded articles.
2 normative reference documents
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article
Pieces. For undated references, the latest edition (including all modifications) applies to this document.
General rules for immersion test of packaging materials and their products for foodstuffs GB/T 5009.156
GB/T 6682 Analytical laboratory water specifications and test methods
3 principle
Sb5 in the sample soaking solution is pre-reduced to Sb3 by thiourea-ascorbic acid mixed solution and then treated in a hydride generator by potassium borohydride
And the conversion of antimony was determined by atomic fluorescence spectrometry.
4 reagent
Unless otherwise stated, the reagents used are analytical grade and water is the tertiary water specified in GB/T 6682.
4.1 hydrochloric acid solution (1 49). excellent grade pure.
4.2 Sodium hydroxide.
4.3 Potassium borohydride.
4.4 potassium borohydride solution. first weighed 0.5g sodium hydroxide (see 4.2) in a small amount of ionized water, to be completely dissolved and then add 1.0g borohydride
Potassium (see 4.3), dissolved to 100mL. Now with the current use.
4.5 thiourea.
4.6 ascorbic acid.
4.7 thiourea - ascorbic acid solution. 5g thiourea (see 4.5), 5g ascorbic acid (see 4.6), dissolved in water to 100mL,
Now with the current use.
4.8 acetic acid (glacial acetic acid).
4.9 Acetic acid solution (4%). Take 4mL acetic acid (see 4.8) Add 50mL of water and dilute to 100mL with water.
4.10 Antimony powder (purity 99.99%).
4.11 sulfuric acid, ρ≈1.84g/mL.
4.12 Antimony Standard stock solution. accurately weighed 0.5000g antimony powder (see 4.10), wet with a small amount of water, add 25mL sulfuric acid (see 4.11), slow
Slowly heated to dissolve, the solution quantitative transfer to about 500mL water filled with 1000mL volumetric flask, diluted with water to the mark, mixed
uniform. This stock solution is equivalent to 0.5 mg antimony per milliliter.
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 32462-2015_English be delivered?Answer: Upon your order, we will start to translate GB/T 32462-2015_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 32462-2015_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 32462-2015_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+ countriesQuestion 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 [email protected]. 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.
|