Home Cart Quotation About-Us
www.ChineseStandard.net
SEARCH

GB/T 30921.2-2016 English PDF

Q: How long will the true-PDF of English version of GB/T 30921.2-2016 be delivered?

Upon your order, we will start to translate GB/T 30921.2-2016_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.

Q: Can I share the purchased PDF of GB/T 30921.2-2016_English with my colleagues?

Yes. The purchased PDF of GB/T 30921.2-2016_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Q: Does the price include tax/VAT?

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). Avoidance of Double Taxation Agreements (DTAs) between Singapore and 100+ Countries: https://www.iras.gov.sg/taxes/international-tax

Q: Do you accept my currency other than USD?

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.

US$239.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 30921.2-2016: Test method of purified terephthalic acid (PTA) for industrial use -- Part 2: Determination of metal content
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 30921.2-2016	239	Add to Cart	3 days	Test method of purified terephthalic acid (PTA) for industrial use -- Part 2: Determination of metal content	Valid

Similar standards

GB/T 40394 GB/T 37178 GB/T 32685 GB/T 30921.5 GB/T 30921.6 GB/T 30921.4

Basic data

Standard ID: GB/T 30921.2-2016 (GB/T30921.2-2016)
Description (Translated English): Test method of purified terephthalic acid (PTA) for industrial use -- Part 2: Determination of metal content
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G16
Classification of International Standard: 71.080.40
Word Count Estimation: 12,130
Date of Issue: 2016-06-14
Date of Implementation: 2017-01-01
Quoted Standard: GB/T 602-2002; GB/T 6679; GB/T 6682; GB 6819; GB/T 8170
Regulation (derived from): National Standard Announcement No. 8 of 2016
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 atomic absorption spectrophotometric and inductively coupled plasma emission spectrometric methods for the determination of metal content in industrial fine terephthalic acid (PTA). The standard flame atomic absorption spectrophotometric method is suitable for the determination of PTA samples containing sodium, cobalt, manganese, iron, chromium, nickel, molybdenum and aluminum content of not less than 0.05 mg/kg; graphite furnace atomic absorption spectrophotometry is applicable to sodium Chromium, nickel, molybdenum, titanium, aluminum content of not less than 0.005 mg/kg of the PTA sample determination; inductively coupled plasma atomic emission spectrometry for sodium, chromium, cobalt, manganese, , Cobalt, aluminum, titanium, potassium, magnesium content of not less than 0.020 mg/kg, manganese, iron, nickel, molybdenum, calcium content of not less than 0.0

GB/T 30921.2-2016: Test method of purified terephthalic acid (PTA) for industrial use -- Part 2: Determination of metal content

---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.
Test method of purified terephthalic acid (PTA) for industrial use - Part 2. Determination of metal content ICS 71.080.40 G16 National Standards of People's Republic of China Test method for industrial terephthalic acid (PTA) Part 2. determination of metal content Testmethodofpurifiedterephthalicacid (PTA) forindustrialuse- Part 2. Determination ofmetalcontent 2016-06-14 release 2017-01-01 Implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released

Foreword

GB/T 30921 "Industrial terephthalic acid (PTA) test method" is divided into the following parts. - Part 1. Determination of p-carboxybenzaldehyde (4-CBA) and p-methylbenzoic acid (p-TOL) - Part 2. Determination of metal content; - Part 3. Determination of water content; - Part 4. Determination of titanium content - Diantipyrylmethane spectrophotometric method; - Part 5. Determination of acid value; - Part 6. Determination of particle size distribution; - Part 7. Determination of b * values - Chromatic aberration method. This part is part 2 of GB/T 30921. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part is proposed by China Petroleum & Chemical Corporation. This section is under the jurisdiction of the National Chemical Standardization Technical Committee (SAC/TC63). This part of the drafting unit. China Petrochemical Yangzi Petrochemical Co., Ltd., China Petrochemical Yizheng Chemical Fiber Co., Ltd. The main drafters of this part. Qian Yanhu, Zhao Fuping, Xu Hong, Zhou Aihua, Ding Daixi, Xue Yuexia, Dai Yudi, Xu Jinlin, Gong Liuliu, Li Ding Song. Test method for industrial terephthalic acid (PTA) Part 2. determination of metal content WARNING. This standard does not address all safety issues related to its use. It is the user's responsibility to take appropriate safety and health measures, And to ensure compliance with relevant national regulations.

1 Scope

This part of GB/T 30921 specifies the atomic absorption spectrophotometric method for the determination of the metal content in industrial terephthalic acid (PTA) And inductively coupled plasma emission spectroscopy. This part of the flame atomic absorption spectrophotometry for sodium, cobalt, manganese, iron, chromium, nickel, molybdenum, aluminum content of not less than 0.05mg/kg PTA sample determination; graphite furnace atomic absorption spectrophotometry for sodium content of not less than 0.001mg/kg, cobalt, manganese, iron, chromium, nickel, Molybdenum, titanium, aluminum content of not less than 0.005mg/kg of PTA sample determination; inductively coupled plasma emission spectrometry for sodium, chromium, cobalt, Aluminum, titanium, potassium, magnesium content of not less than 0.020mg/kg, manganese, iron, nickel, molybdenum, calcium content of not less than 0.055mg/kg PTA sample determination.

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. Preparation of standard solutions for the determination of impurities in chemical reagents GB/T 602-2002 General rules for sampling of solid chemical products GB/T GB/T 6682 Analytical laboratory water specifications and test methods GB 6819 dissolved acetylene Representation and Judgment of Numerical Correction Rule and Limit Value of GB/T 8170 Method A - Flame Atomic Absorption Spectrophotometry 3.1 Method Summary Under the conditions specified in this part, the PTA sample is ignited and burned at 750 ° C for 45 min to dissolve the ash in dilute nitric acid. And then analyzed by flame atomic absorption spectrophotometry, quantitative curve by working curve method. 3.2 Reagents and Materials 3.2.1 Unless otherwise specified, the reagents used are of analytical grade and the test water complies with the secondary water in GB/T 6682; the standard solution GB/T 602-2002 formulated, or commercially available. 3.2.2 nitric acid solution. 1 1, with excellent grade pure nitric acid preparation. 3.2.3 anhydrous ethanol. excellent grade pure. 3.2.4 Cesium nitrate aqueous solution (cesium content of 6.25g/L). Weigh 0.917g of cesium nitrate dissolved in the amount of water, transferred to 100mL capacity Bottle, add 40mL of anhydrous ethanol shake, then diluted to the water scale, shake. 3.2.5 Cesium nitrate solution (cesium content 50g/L). Weigh 7.332g of cesium nitrate dissolved in water, transferred to 100mL volumetric flask, diluted with water ......

Image

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 30921.2-2016_English be delivered?

Answer: Upon your order, we will start to translate GB/T 30921.2-2016_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 30921.2-2016_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 30921.2-2016_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.