GB/T 37193-2018 English PDF

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GB/T 37193-2018: Optical functional films -- Polyethylene terephthalate (PET) film -- Determination of extraction rate
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 37193-2018	119	Add to Cart	3 days	Optical functional films -- Polyethylene terephthalate (PET) film -- Determination of extraction rate	Valid

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Basic data

Standard ID: GB/T 37193-2018 (GB/T37193-2018)
Description (Translated English): Optical functional films -- Polyethylene terephthalate (PET) film -- Determination of extraction rate
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G15
Classification of International Standard: 71.080.99
Word Count Estimation: 6,698
Date of Issue: 2018-12-28
Date of Implementation: 2019-11-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 37193-2018: Optical functional films -- Polyethylene terephthalate (PET) film -- Determination of extraction rate

---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.
Optical functional films--Polyethylene terephthalate(PET) film--Determination of extraction rate ICS 71.080.99 G15 National Standards of People's Republic of China Optical functional film polyethylene terephthalate (PET) film extraction rate determination method Published on.2018-12-28 2019-11-01 implementation State market supervision and 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 was proposed by the China Petroleum and Chemical Industry Federation. This standard is under the jurisdiction of the National Technical Committee for Standardization of Optical Functional Film Materials (SAC/TC431). This standard was drafted. Hefei Lekai Technology Industry Co., Ltd., China Lekai Group Co., Ltd. The main drafters of this standard. Zhou Tong, Gao Qing, Wang Xuliang, Wang Hui, Wang Qin, Cheng Longbao, Xu Lili. Optical functional film polyethylene terephthalate (PET) film extraction rate determination method

1 Scope

This standard specifies the method for determining the extraction rate of polyethylene terephthalate (PET) film using organic solvents. This standard applies to PET film.

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. Standard environment for GB/T 2918 plastic sample conditioning and testing

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Extraction rate extractionrate The percentage of the mass of the solvent extracted from the material and the mass of the material prior to extraction. Note. The mass of the extracted material can be calculated from the difference in mass before and after the material is extracted.

4 instruments and reagents

4.1 Soxhlet extractor As shown in Figure 1, it includes. heating source, extraction bottle, extraction tube and condenser tube, and should meet the following requirements. a) Heating source. the maximum temperature is 250 °C, and the temperature fluctuates ±1 °C after stabilization; b) Extraction bottle. volume ≥ 1000mL; c) The size and interface diameter of the extraction and condensing tubes should be matched with the extraction bottle. ......

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