GB/T 13254-2017 English PDF

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GB/T 13254-2017: Caprolactam for industrial use
Status: Valid

GB/T 13254: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 13254-2017	119	Add to Cart	3 days	Caprolactam for industrial use	Valid
GB/T 13254-2008	279	Add to Cart	3 days	Caprolactam for industrial use	Obsolete
GB 13254-1991	199	Add to Cart	2 days	Caprolactam for industrial use	Obsolete

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Basic data

Standard ID: GB/T 13254-2017 (GB/T13254-2017)
Description (Translated English): Caprolactam for industrial use
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G17
Classification of International Standard: 71.080.30
Word Count Estimation: 6,666
Date of Issue: 2017-11-01
Date of Implementation: 2018-05-01
Older Standard (superseded by this standard): GB/T 13254-2008
Regulation (derived from): National Standard Announcement 2017 No. 29
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

GB/T 13254-2017: Caprolactam for industrial use

---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.
Caprolactam for industrial use ICS 71.080.30 G17 National Standards of People's Republic of China Replacing GB/T 13254-2008 Industrial caprolactam Posted.2017-11-01 2018-05-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released

Foreword

This standard was drafted in accordance with the rules given GB/T 1.1-2009. This standard replaces GB/T 13254-2008 "Industrial caprolactam." This standard compared with GB/T 13254-2008 major changes as follows. --- Solid appearance by the "white, flake solid, no visible mechanical impurities" to "white, flake or powder or granular solid, no Visible mechanical impurities "(see 3.1.1,.2008 edition 3.1.1); --- 50% aqueous solution of chroma superior products, first-class products, quality indicators were ≤ 3, ≤ 5, ≤ 8, No. 2 amended to ≤ 2, ≤4, ≤6 (see 3.2,.2008 edition 3.2); --- Potassium permanganate absorption value of superior products, first-class products, qualified products were indicators by ≤ 5, ≤ 8, ≤ 18 amended to ≤ 4, ≤ 6 and ≤ 10 (See 3.2,.2008 version 3.2); --- Volatile alkali content of first-class products, quality indicators were ≤ 0.8 mmol/kg, ≤ 1.5 mmol/kg modified to ≤0.60mmol/kg and ≤1.00mmol/kg, the indexes of superior products are unchanged (see 3.2,.2008 edition 3.2); --- 290nm wavelength absorbance of superior products, first-class products, quality indicators were ≤ 0.04, ≤ 0.10, ≤ 0.20 amended to ≤0.040, ≤0.060 and ≤0.100 (see 3.2,.2008 edition 3.2); --- Acidity new eligibility indicators ≤ 0.20mmol/kg; alkalinity of the first-class products and quality indicators were ≤ 0.10mmol/kg And ≤ 0.20 mmol/kg to ≤ 0.08 mmol/kg and ≤ 0.15 mmol/kg, the new eligible index ≤ 0.20 mmol/kg (see 3.2,.2008 edition 3.2); --- Cyclohexanone oxime quality grade index of superior products from ≤ 20mg/kg modified to ≤ 15mg/kg (see 3.2,.2008 version 3.2); --- New technical requirements for moisture content, superior index ≤ 0.10%, first-class products, quality indicators do not control the test methods used mining Use GB/T 6283 (see Chapter 2, 3.2 and 4.8); --- Inspection rules factory inspection items increased "moisture content" project (see 5.1); --- Determination of volatile base content increased "test results in accordance with GB/T 8170 rounded to two decimal places" (see 4.5); --- 290nm wavelength absorbance increased "test results in accordance with GB/T 8170 revised to three digits after the decimal point" (see 4.6); --- Packaging terms increase the "solid caprolactam packaging and quantitative consultation with the user," and so on (see 6.2); --- Transport terms "liquid industrial caprolactam should be filled with nitrogen filled [oxygen content ≤ 0.005% (mole fraction)]," modify For the "liquid industrial caprolactam should be filled with high pure nitrogen sealed", that is, delete "[oxygen content ≤ 0.005% (mole Number)] ", adding" high purity "(see 6.3.2,.2008 version 6.3.2); --- Storage terms "liquid caprolactam should be stored in nitrogen sealed" [oxygen content ≤ 0.005% (mole fraction)] "modified to" liquid Industrial caprolactam should be stored in high purity nitrogen sealed ", that is, delete" [oxygen content ≤ 0.005% (mole fraction)] ", increase "High purity" statement (see 6.4.2,.2008 edition 6.4.2). This standard proposed by the China Petroleum and Chemical Industry Federation. This standard by the National Standardization Technical Committee Organic Chemical Branch (SAC/TC63/SC2) centralized. This standard is drafted by China Petrochemical Co., Ltd. Baling Branch, China Petrochemical Co., Ltd. Beijing Institute of Technology. Participated in the drafting of this standard. Quzhou Juhua Nylon Co., Ltd., Hubei Sanning Chemical Co., Luxi Chemical Group Co., Ltd. Limited company. The main drafters of this standard. Hao Yan, Tang Yue Bing, Li Xianhua, Zhao Junhong, Li Chu, Lin Li, Li Wanqing, Yang Benhua. This standard replaces the standards previously issued as. --- GB/T 13254-1991, GB/T 13254-2008. Industrial caprolactam

1 Scope

This standard specifies the requirements of industrial caprolactam, test methods, inspection rules and signs, packaging, transportation and storage. This standard applies to the production of industrial caprolactam, testing and sales. Formula .C6H11NO Structural formula .CH2 CH2 CH2 CH2 CH2 CO􀪅 NH Relative molecular mass .113.16 (according to the international relative atomic mass in.2016)

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 6283 Determination of moisture content of chemical products Karl Fischer (General Methods) GB/T 6678 General rules for sampling chemical products GB/T 6679 General rules for sampling solid chemical products GB/T 6680 General rules for sampling liquid chemical products GB/T 8170 rounded repair rules and limit values of the representation and judgment GB/T 8946 plastic woven bags general technical requirements GB/T 13255.1 industrial caprolactam test method - Part 1. 50% aqueous solution Determination of colorimetry Test method for industrial caprolactam - Part 2. Determination of the crystallization point GB/T 13255.2 GB/T 13255.3 Industrial use caprolactam test method - Part 3. Determination of potassium permanganate absorption value spectrophotometry GB/T 13255.4 industrial caprolactam test method - Part 4. Determination of volatile base content titration after distillation GB/T 13255.5 industrial caprolactam test method - Part 5. Determination of absorbance at 290 nm wavelength GB/T 13255.6 industrial caprolactam test methods - Part 6. Determination of acidity or alkalinity Test method for industrial caprolactam - Part 7. Determination of iron content GB/T 13255.8 industrial caprolactam test methods - Part 8. Determination of cyclohexanone oxime content

3 requirements

3.1 appearance 3.1.1 Appearance of solid. White, flaky or powdery or granular solid with no visible mechanical impurities. 3.1.2 Liquid Appearance. Colorless, transparent liquid, no visible mechanical impurities. 3.2 Specifications Industrial caprolactam should meet the technical requirements shown in Table 1. ......

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