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

GB/T 33611-2017 PDF English

US$90.00 · In stock · Download in 9 seconds
GB/T 33611-2017: Textiles -- Determination of short chain 4- (1, 1, 3, 3-tetramethylbutyl) phenol ethoxylate
Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure
Status: Valid
Standard IDUSDBUY PDFDeliveryStandard Title (Description)Status
GB/T 33611-201790 Add to Cart Auto, 9 seconds. Textiles -- Determination of short chain 4- (1, 1, 3, 3-tetramethylbutyl) phenol ethoxylate Valid

Similar standards

GB/T 33610.3   GB/T 33610.1   GB/T 33611   

GB/T 33611-2017: Textiles -- Determination of short chain 4- (1, 1, 3, 3-tetramethylbutyl) phenol ethoxylate


---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT33611-2017
GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 59.080.01 W 04 Textiles – Determination of Short Chain 4-(1,1,3,3-Tetramethylbutyl) Phenol Ethoxylate Issued on: MAY 12, 2017 Implemented on: OCTOBER 1, 2017 Issued by. General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of PRC. 3. No action is required - Full-copy of this standard will be automatically & immediately delivered to your EMAIL address in 0~60 minutes.

Table of Contents

Foreword ... 3 1 Scope ... 4 2 Normative References ... 4 3 Principle ... 4 4 Reagent and Standard Solution ... 5 5 Apparatus and Materials ... 5 6 Sample Pre-Treatment ... 6 7 Determination ... 6 8 Result Calculation ... 7 9 Determination Low Limit of Method and Precision ... 8 10 Test Report ... 8 Appendix A (Informative) Normal Phase HPLC Reference Retention Time and Chromatogram of Short Chain 4-(1,1,3,3-Tetrametylbutyl) Phenol Ethoxylate Standard Product ... 9

Foreword

This Standard was drafted as per the rules specified in GB/T 1.1-2009. This Standard was proposed by China National Textile and Apparel Council. This Standard shall be under the jurisdiction of National Technical Committee for Standardization of Textiles (SAC/TC 209). Drafting organizations of this Standard. Ningbo Inspection and Quarantine Institute of Science and Technology, CTTC Inspection and Certification Co., Ltd., Ningbo Yinzhou China Inspection Co., Ltd., and Haosha Industry (Fujian) Co., Ltd. Chief drafting staffs of this Standard. Bao Qibei, Fu Kejie, Zhang Hui, Ren Qingqing, Qian Dan, Lian Cefeng, Xu Jianlin, Yang Lisheng, Feng Yun, Fu Chunlin, and Chang Xiangzhen. Textiles – Determination of Short Chain 4-(1,1,3,3-Tetramethylbutyl) Phenol Ethoxylate Warning – Personnel using this Standard shall have practical working experience in the formal laboratory. This Standard doesn’t indicate all possible safety issues. The users shall be responsible for taking appropriate safety and health measures, and ensure to conform to the specified conditions of relevant national regulations.

1 Scope

This Standard specifies the method of adopting the normal phase High Performance Liquid Chromatography (HPLC) to determine the 3 kinds of short chain 4-(1, 1, 3, 3- tetrametylbutyl) phenol ethoxylate, namely, 4-tert-octylphenol monoethoxylate, 4-tert- octylphenol diethoxylate, 4-tert-octylphenol triethoxylate in the textiles. This Standard is applicable to all types of textile products.

2 Normative References

The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this document. GB/T 6682 Water for Analytical Laboratory Use – Specification and Test Methods

3 Principle

Take methanol as the extraction solvent; use ultrasonic wave to extract short chain 4- (1, 1, 3, 3-tetrametylbutyl) phenol ethoxylate in the specimen; concentrate the extracting solution, then use normal phase high performance liquid chromatography with fluorescence detector to determine; use external standard method to determine the quantity.

6 Sample Pre-Treatment

Select the representative sample; cut into 5mm × 5mm pieces, mix evenly. Weigh 2g of specimen, accurate to 0.01g; place into the stoppered conical flask (5.4); add 50mL of methanol (4.1), extract for 40min under the room temperature in the ultrasonic-wave generator (5.2); transfer the extracting solution into the round bottom flask (5.5); then use 10mL of methanol (4.1) to wash the slag, add into the extracting solution. Concentrate to 1mL at 40°C rotary evaporator (5.6); then use isopropanol (4.3) to make the constant volume of 10mL. Filter the solution through the organic phase filter membrane (5.7), then serve as the sample solution to be tested by the normal phase high performance liquid chromatography.

7 Determination

7.1 Normal phase high performance liquid chromatography conditions Since the test results depend on the instrument used; it is not possible to give general parameters for chromatographic analysis. The following parameters have been proved to be appropriate for the test. a) Chromatographic column. Dikma platisil silica gel column; 250mm × 4.6mm, 5.0µm or equivalent. b) Chromatographic column temperature. 35°C. c) Mobile phase. --- Mobile Phase A. n-hexane + isopropanol (85.15); --- Mobile Phase B. isopropanol + water (85.15). d) Fluorescence detector. excitation wavelength of 230nm; emission wavelength of 296nm. e) Flow rate. 0.5mL/min. f) Sample injection volume. 10µL. g) Gradient elution program, refer to Table 1. ......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
Image 1     Image 2     Image 3     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of English version of GB/T 33611-2017 be delivered?Answer: The full copy PDF of English version of GB/T 33611-2017 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.

Question 2: Can I share the purchased PDF of GB/T 33611-2017_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 33611-2017_English will be deemed to be sold to your employer/organization who actually paid 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. www.ChineseStandard.us -- GB/T 33611-2017 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds.

How to buy and download a true PDF of English version of GB/T 33611-2017?

A step-by-step guide to download PDF of GB/T 33611-2017_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).
Step 2: Search keyword "GB/T 33611-2017".
Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart.
Step 4: Select payment option (Via payment agents Stripe or PayPal).
Step 5: Customize Tax Invoice -- Fill up your email etc.
Step 6: Click "Checkout".
Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively.
Step 8: Optional -- Go to download PDF.
Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice.
See screenshots for above steps: Steps 1~3    Steps 4~6    Step 7    Step 8    Step 9