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GB/T 41709-2022 English PDF

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US$194.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 41709-2022: Carbon-fibre-reinforced plastics - Determination of the size and aspect ratio of crushed objects
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 41709-2022	194	Add to Cart	3 days	Carbon-fibre-reinforced plastics - Determination of the size and aspect ratio of crushed objects	Valid

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Basic data

Standard ID: GB/T 41709-2022 (GB/T41709-2022)
Description (Translated English): Carbon-fibre-reinforced plastics - Determination of the size and aspect ratio of crushed objects
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Q53
Word Count Estimation: 10,144
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 41709-2022: Carbon-fibre-reinforced plastics - Determination of the size and aspect ratio of crushed objects

---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.
Carbon-fibre-reinforced plastics - Determination of the size and aspect ratio of crushed objects ICS 59.100.20 CCSQ53 National Standards of People's Republic of China CFRP crushed material size and Determination of aspect ratio (ISO 30012.2016, IDT) Published on 2022-10-12 2022-10-12 Implementation State Administration for Market Regulation Released by the National Standardization Administration

foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" drafted. This document is equivalent to ISO 30012.2016 "Determination of Size and Aspect Ratio of Carbon Fiber Reinforced Plastic Crushed Materials". The following minimal editorial changes have been made to this document. --- Incorporated the amendments to ISO 30012.2016/Amd.1.2018, and the outer margins of the clauses involved use vertical Double lines (‖) are marked. Please note that some content of this document may involve patents, and the issuing organization of this document does not undertake the responsibility for identifying patents. This document is proposed and managed by the National Carbon Fiber Standardization Technical Committee (SAC/TC572). This document is drafted by. Nanjing Fiberglass Research and Design Institute Co., Ltd., Anhui Guanting Technology Co., Ltd., Anhui Jinxilong New Construction Co., Ltd. Materials Co., Ltd., Sinopec Shanghai Petrochemical Co., Ltd., and Changzhou Dams Testing Technology Co., Ltd. The main drafters of this document. Xu Qi, Qu Huili, Wang Yumei, Kang Yiyu, Cheng Chuanchang, Bi Cuicui, Ma Dan, Lu Yao, Tan Yuan, Shi Huixian, Cui Jun. CFRP crushed material size and Determination of aspect ratio

1 Scope

This document specifies the method for the determination of the size and aspect ratio of carbon fiber reinforced plastic (CFRP) pulverized materials, mainly applicable to recycling CFRP used. This document treats the shape of CFRP pulverized material fragments as rectangles, and specifies the measurement methods for length and width. Book Files are suitable for fragments of the following average sizes. ---Length. 5mm~50mm; ---Width. 1mm~10mm. This document provides 3 measurement methods, two are manual testing methods using a microscope and a scale bar, and the third is using a measuring instrument automatic test method. This document applies to CFRP pulverized materials made of thermosetting resins or thermoplastic resins. Note. If the CFRP pulverized material contains a large amount of small fragments and fine particles, it is recommended to sieve it out with a 1mm sieve before measurement.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document. ISO 472 Plastics-Vocabulary Note. GB/T 2035-2008 Plastic terms and their definitions (ISO 472.1999, IDT)

3 Terms and Definitions

Terms and definitions defined in ISO 472 apply to this document.

4 symbols

The following symbols apply to this document. W. The width of the CFRP fragment, represented by the short side of the rectangle. L. The length of the CFRP fragment, represented by the long side of the rectangle. W. Average width of CFRP fragments. L. Average length of CFRP fragments. The aspect ratio of RA.CFRP fragments, calculated from the ratio of length to width of CFRP fragments. σ(L). Standard deviation of CFRP fragment lengths. σ(W). Standard deviation of CFRP fragment width. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 41709-2022_English be delivered?

Answer: Upon your order, we will start to translate GB/T 41709-2022_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 41709-2022_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 41709-2022_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.