FZ/T 50021-2014 English PDF

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FZ/T 50021-2014: Phosphorus flame-retardant chemical fiber products. Dtermination of the phosphorus content
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
FZ/T 50021-2014	209	Add to Cart	3 days	Phosphorus flame-retardant chemical fiber products. Dtermination of the phosphorus content	Valid

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Basic data

Standard ID: FZ/T 50021-2014 (FZ/T50021-2014)
Description (Translated English): Phosphorus flame-retardant chemical fiber products. Dtermination of the phosphorus content
Sector / Industry: Spinning & Textile Industry Standard (Recommended)
Classification of Chinese Standard: W50
Classification of International Standard: 59.060.20
Word Count Estimation: 9,973
Date of Issue: 7/9/2014
Date of Implementation: 11/1/2014
Quoted Standard: GB/T 4146.1; GB/T 4146.3; GB/T 6682; GB/T 8170
Regulation (derived from): Ministry of Industry and Information Technology Notice No. 47 of 2014
Issuing agency(ies): Ministry of Industry and Information Technology of the People's Republic of China
Summary: This Standard specifies the test methods for chemical fiber products phosphorus flame retardant phosphorus content. Including the method A�� phosphomolybdate blue spectrophotometric method B�� and plasma emission spectrometry (ICP method). This Standard app

FZ/T 50021-2014: Phosphorus flame-retardant chemical fiber products. Dtermination of the phosphorus 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.
Phosphorus flame-retardant chemical fiber products.Dtermination of the phosphorus content ICS 59.060.20 W50 People's Republic of China textile industry standards Phosphorus-based flame retardant chemical fiber products phosphorus content of the test method Issued on. 2014-07-09 2014-11-01 implementation Ministry of Industry and Information Technology of the People's Republic of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. The standard proposed by China Textile Industry Association. This standard by the Shanghai textile industry technical supervision of the centralized. This standard was drafted. Shanghai textile industry technical supervision, Big Gary (Taicang) Co., Ltd. Quality and Technical Inspection Center, Taicang Zhen Hui Chemical Fiber Co., Ltd., Shanghai fiber Control, Zhejiang ancient defibrillators, New Materials Co., Ltd. The main drafters of this standard. LIBERATION Xu Yiqun, Yang Min, Zhai Hao, Tan Yujing, Zhou Aiping, Wu Yaping. Phosphorus-based flame retardant chemical fiber products phosphorus content of the test method Warning. Use of this section shall be a person experiences regular laboratory work. This section does not indicate that all possible security issues. Users have the responsibility to take appropriate safety and health practices and to ensure that conditions relating to national regulations.

1 Scope

This standard specifies the test methods for phosphorus-based flame retardant fiber products phosphorus content. Method A --- including phosphorus and molybdenum blue spectrophotometric method B --- plasma emission spectrometry (ICP method). This standard applies to the determination of phosphorus-based flame retardant chemical fiber products phosphorus content.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 4146.1 Textiles chemical fiber - Part 1. generic name GB/T 4146.3 Textiles chemical fiber - Part 3. Testing Terminology Laboratory use specifications and test methods GB/T 6682 Analysis GB/T 8170 repair value expressed about the rules and limit values and judgment

3 Terms and Definitions

GB/T 4146.1, terms and definitions GB/T 4146.3 defined apply to this document. Test Method 4 4.1 Method A (phosphorus molybdenum blue spectrophotometric method) 4.1.1 Principle By sulfuric acid - hydrogen peroxide digestion to destroy the organic matter and phosphate into orthophosphate, which in sulfuric acid medium by molybdate Role of ascorbic acid and ammonium form called "molybdenum blue" phosphomolybdate. Absorbance by spectrophotometry with molybdenum blue at 825nm wavelength value. Within a certain range, the phosphorus content and the absorbance values conform to the Lambert - Beer law, phosphorus content is calculated by absorbance. 4.1.2 Reagents 4.1.2.1 purity reagents used were of analytical grade, refer to the solution (%) represents the mass fraction, only "Ethanol (95%)" in (%) Volume fraction. Laboratory water should be consistent with GB/T 6682 in the three water specifications. 4.1.2.2 sulfuric acid. a concentration of 1.84g/mL. 4.1.2.3 Hydrogen Peroxide. 30% mass fraction. 4.1.2.4 ascorbic acid solution (50g/L). Weigh 5g ascorbic acid dissolved in 100mL water. Such as the color yellow, reconstituted. 4.1.2.5 sodium hydroxide solution (10mol/L). Weigh 40g of sodium hydroxide were dissolved in 100mL water. 4.1.2.6 sulfuric acid solution, a concentration of about 10mol/L. 600mL amount of sulfuric acid (4.1.2.2), slowly into 1000mL water, cooling, ......

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