GB/T 25002-2010 English PDF

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GB/T 25002-2010: Paper, board and pulp -- Determination of pentachlorophenol in an aqueous extract
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 25002-2010	279	Add to Cart	3 days	Paper, board and pulp -- Determination of pentachlorophenol in an aqueous extract	Valid

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Basic data

Standard ID: GB/T 25002-2010 (GB/T25002-2010)
Description (Translated English): Paper, board and pulp -- Determination of pentachlorophenol in an aqueous extract
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y30
Classification of International Standard: 85.010
Word Count Estimation: 12,140
Date of Issue: 2010-08-09
Date of Implementation: 2010-12-01
Quoted Standard: GB/T 462; GB/T 6682; EN 645-1993; EN 647-1993
Adopted Standard: ISO 15320-2003, MOD
Regulation (derived from): National Standard Approval Announcement 2010 No.3 (Total No.158)
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
Summary: This standard provides for the pulp, paper and paperboard in aqueous extracts of pentachlorophenol by gas chromatography and gas chromatography-mass spectrometry speed. This standard applies to all kinds of paper, measurement solution pentachlorophenol cardboard and pulp water extraction.

GB/T 25002-2010: Paper, board and pulp -- Determination of pentachlorophenol in an aqueous extract

---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.
Paper, board and pulp. Determination of pentachlorophenol in an aqueous extract ICS 85-010 Y30 National Standards of People's Republic of China Paper, paperboard and pulp in water extract Determination of pentachlorophenol Paper, boardandpulp-Determinationof (ISO 15320.2003, MOD) Issued on. 2010-08-09 2010-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This revised standard adopts ISO 15320.2003 "Determination of pulp, paper and paperboard aqueous extract of pentachlorophenol." The main differences with the international standards as follows. --- Modify part of the scope of application; --- Modify part of the reagents and materials (see Chapter 4); --- An increase of some equipment (see Chapter 5); --- Preparation and extraction has been specifically described (see Chapter 6); --- Modify part of the test procedure (see Chapter 7); --- Increasing the lower limit of detection and recovery (see Chapter 9); --- Increased pentachlorophenol derivatives and internal standard gas chromatographic retention times (see Appendix A); --- Increasing the typical gas chromatogram of pentachlorophenol and internal standard derivative (see Appendix B); --- Increased derivative pentachlorophenol and internal standard quantification ion reference (see Appendix C); --- Increased pentachlorophenol and internal standard derivative typical gas chromatography - mass spectrum (see Appendix D). This standard and ISO 15320.2003 are listed in contrast structures Appendix E. This standard and ISO 15320.2003 technical differences are listed in Appendix F. The Standard Appendix A, Appendix B, Appendix C, Appendix D, Annex E and Annex F is informative appendix. The standard proposed by China National Light Industry Council. This standard by the National Standardization Technical Committee of the paper industry. This standard was drafted. SZCIQ Industrial Testing Center, China Pulp and Paper Research Institute, the People's Republic of China Exit Inspection and Quarantine and the National Guangdong, Shenzhen Academy of Inspection and Quarantine, the State Quality Supervision and Inspection Center of paper. The main drafters of this standard. Left Yang Jun, Wang Chengyun, Xu Rong, Guo Renhong, Guhao Fei, Zhang Zhihui, Liu Min, Wei Dong. Paper, paperboard and pulp in water extract Determination of pentachlorophenol

1 Scope

This standard specifies the aqueous extracts used in the pulp, paper and paperboard in pentachlorophenol by gas chromatography and gas chromatography - mass spectrometry. This standard applies to the determination of a variety of paper, board and pulp in water extracts pentachlorophenol.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 462 paper, board and pulp - Determination of water sample (GB/T 462-2008; ISO 287. 1985, MOD; ISO 638. 1978, MOD) GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD) EN645.1993 with the purpose of preparation of food contact paper and board for a cold water extract EN647.1993 with the purpose of preparation of food contact paper and board for a hot water extract Principle 3 Cold water extraction or the 1993 sample according to EN647..1993 pairs of extracted water samples according to EN645. Solid phase extraction The emulated in the extract was concentrated to pentachlorophenol phenyl column and rinsed with n-hexane, acetylation with acetic anhydride, using ECD with (Electron capture detector) or MS (mass spectrometer) is measured by gas chromatography.

4 Reagents and materials

Unless otherwise indicated in the analysis using only recognized as analytical reagents. 4.1 Water, GB/T 6682, level. 4.2 methanol (CH3OH). chromatography. 4.3 n-hexane (C6H14). chromatography. Acetic anhydride 4.4 (C4H6O3). concentration of greater than or equal to 99%. 4.5 hydrochloric acid solution. concentration of 0.1mol/L. 4.6 potassium carbonate solution. the concentration of 0.1mol/L, 13.8 g of weighed (accurate to 0.1g) of potassium carbonate, dissolved in water containing a small amount of a burn Cup, then transfer this solution into 1000mL volumetric flask with water to volume. 4.7 sulfuric acid solution. distilled water formulated excellent pure sulfuric acid solution at a concentration of 11's. 4.8 Internal standard. 2,3,6-trichlorophenol standard (C6H3Cl3), a purity of greater than 99%. 4.9 pentachlorophenol standard (C6Cl5OH). purity of greater than 99%. 4.10 internal standard stock solution. accurately weighed amount of internal standard (4.8), formulated with methanol (4.2) to a concentration of 100μg/mL of internal standard Solution, and the solution Pipette 10mL to 100mL volumetric flask, dilute to the mark with methanol (4.2), this internal standard stock solution at a concentration of 10μg / mL, stored at 0 ℃ ~ 4 ℃ refrigerator for a period of six months. 4.11 pentachlorophenol standard stock solution. formulated with methanol (4.2) at a concentration of 125μg/mL solution of pentachlorophenol, the Pipette 1mL Solution to 25mL volumetric flask, dilute to the mark with methanol (4.2), this internal standard stock solution at a concentration of 5μg/mL, refrigerator 0 ℃ ~ 4 ℃ ......

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