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SN/T 4244-2015 English PDF

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SN/T 4244-2015: Determination of chloride in ethylene glycol, diethylene glycol and triethylene glycol. Ion chromatography
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SN/T 4244-2015English189 Add to Cart 3 days [Need to translate] Determination of chloride in ethylene glycol, diethylene glycol and triethylene glycol. Ion chromatography Valid SN/T 4244-2015

PDF similar to SN/T 4244-2015


Standard similar to SN/T 4244-2015

GB/T 4649   GB/T 3394   GB/T 3392   SN/T 5754   

Basic data

Standard ID SN/T 4244-2015 (SN/T4244-2015)
Description (Translated English) Determination of chloride in ethylene glycol, diethylene glycol and triethylene glycol. Ion chromatography
Sector / Industry Commodity Inspection Standard (Recommended)
Classification of Chinese Standard G16
Classification of International Standard 71.080.60
Word Count Estimation 8,819
Date of Issue 2015-05-26
Date of Implementation 2016-01-01
Quoted Standard GB/T 6680; GB/T 6682
Regulation (derived from) State Quality-Inspection-accreditation [2015] No.224
Issuing agency(ies) General Administration of Customs
Summary This standard specifies the ethylene glycol, diethylene glycol, triethylene glycol ion chromatographic method of inorganic chlorine content. This standard applies to ethylene glycol, diethylene glycol, triethylene glycol Determination of inorganic chlorine content detection limit 0.02 mg/L.

SN/T 4244-2015: Determination of chloride in ethylene glycol, diethylene glycol and triethylene glycol. Ion chromatography


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(Ethylene glycol, diethylene glycol, triethylene glycol Determination of chlorine ion chromatography) People's Republic of China Entry-Exit Inspection and Quarantine Standards Ethylene glycol, diethylene glycol, triethylene glycol Determination of chlorine ion chromatography Determinationofchlorideinethyleneglycol, diethylene Issued on. 2015-05-26 2016-01-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. People's Republic of China Jiangsu Entry-Exit Inspection and Quarantine Bureau, Taicang Xintai Alcohol Co., People's Republic of China Ningbo CIQ country. The main drafters of this standard. Caoxi Huan, Li Jianjun, Wu bud, Songle Lin, Zhang Xia PLATE SURFACE Mao Weigang. Ethylene glycol, diethylene glycol, triethylene glycol Determination of chlorine ion chromatography

1 Scope

This standard specifies the ethylene glycol, diethylene glycol, triethylene glycol ion chromatographic method of inorganic chlorine content. This standard applies to ethylene glycol, diethylene glycol, triethylene glycol Determination of inorganic chlorine content detection limit 0.02mg/L.

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 6680 General rules for sampling liquid chemical products Laboratory use specifications and test methods GB/T 6682 Analysis

3 PRINCIPLE OF THE METHOD

Sample injection is equipped with two anion exchange column (analytical column and guard column), suppressor and conductivity detector for ion chromatography system. Do not With anion exchange differences based on the affinity between the resin and the eluent is separated in ion eluted analyte ion electric conductivity detector inspection Measured by retention time qualitative, external standard method with peak area quantification.

4 Reagents

Unless otherwise indicated, the reagents used were of analytical grade water as a water line with GB/T 6682 regulations. 4.1 sodium chloride. 4.2 sodium carbonate. 4.3 sodium bicarbonate. 4.4 sulfate (ρ = 1.84g/mL). 4.5 ethylene glycol (MEG). high purity, impurity content of less than 0.01mg/L. 4.6 diethylene glycol (DEG). high purity, impurity content of less than 0.01mg/L. 4.7 Triethylene glycol (TEG). high purity, impurity content of less than 0.01mg/L. 4.8 Quality Assurance verification standard chlorine. chlorine content of 10mg/L, chloride or other commercial solution formulation. 4.9 chlorine stock standard solution (1000mg/L water). Accurately weigh 0.1649g ± 0.0010g advance at 500 ℃ ~ 600 ℃ burning Till the constant weight of sodium chloride (4.1), with a small amount of water dissolved transferred to 100mL volumetric flask, dilute with water to volume, and mix. 4.10 chloro calibration standard (10mg/L solution). with a pipette 1.0mL chloro stock standard solution (4.9) in 100mL volumetric flask, Dilute with water to volume, and mix. 4.11 anion regeneration solution (0.1mol/L sulfuric acid). adding the right amount of water inside in 100mL beaker was slowly added 5.0mL of sulfuric acid (4.4), Transfer to a 1L flask was cooled, diluted with water to volume, and mix. 4.12 carbonate/bicarbonate eluent (3.2mmol/LNa2CO3/1.0mmol/LNaHCO3). Accurately weigh 0.3392g ± 0.0010g sodium carbonate (4.2) and 0.0840g ± 0.0010g of sodium bicarbonate (4.3), dissolved was transferred to a 1L volumetric flask, diluted with water to

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