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GB/T 14021-2009 English PDF

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GB/T 14021-2009: Maleated rosin
Status: Valid

GB/T 14021: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 14021-2009English229 Add to Cart 3 days [Need to translate] Maleated rosin Valid GB/T 14021-2009
GB/T 14021-1992English239 Add to Cart 2 days [Need to translate] Maleated rosin Obsolete GB/T 14021-1992

PDF similar to GB/T 14021-2009


Standard similar to GB/T 14021-2009

GB/T 24797.2   GB/T 8140   GB/T 18011   GB/T 14020   GB/T 14022.2   GB/T 14022.1   

Basic data

Standard ID GB/T 14021-2009 (GB/T14021-2009)
Description (Translated English) Maleated rosin
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard B72
Classification of International Standard 71.100.99
Word Count Estimation 10,162
Date of Issue 2009-05-12
Date of Implementation 2009-11-01
Older Standard (superseded by this standard) GB/T 14021-1992
Regulation (derived from) PRC National Standard Approval Announcement 2009 No.7 (Total No.147)
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 specifies the technical requirements of maleic rosin, test methods, inspection rules, and packaging, signs, transportation and storage. This standard applies to the rosin with maleic anhydride obtained from addition reaction of maleic rosin.

GB/T 14021-2009: Maleated rosin

---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.
Maleated rosin ICS 71.100.99 B72 National Standards of People's Republic of China Replacing GB/T 14021-1992 Maleic rosin Posted 2009-05-12 2009-11-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard replaces GB/T 14021-1992 "maleic rosin." This standard compared with GB/T 14021-1992 main changes are as follows. --- Increased Chapter 3, "Terms and Definitions"; --- Added "measuring 5.1 Appearance (applies to 103 maleic rosin)"; --- Added "6.1 Inspection classification"; --- Embodied in the flag that identifies the batch method, which gives the product traceability. This standard was proposed by the State Forestry Administration. The standard by the China Academy of Forestry Forest Research Institute of Chemical Industry. This standard is drafted by. Nanjing Forestry University. The main drafters of this standard. Luojin Yue, Zeng Tao, Ni Chuan-root. This standard replaces the standards previously issued as follows. --- GB/T 14021-1992. Maleic rosin

1 Scope

This standard specifies the maleic rosin technical requirements, test methods, inspection rules, and packaging, labeling, transport and storage. This standard applies to the gum rosin and maleic anhydride (maleic anhydride) obtained from addition reaction of maleic rosin.

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. Preparation of GB/T 601 chemical reagent standard titration solution GB/T 8146 Test Methods for Rosin LY/T 1145 Rosin drums

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 Part gum rosin resin acids and maleic anhydride (maleic anhydride) from the Diels - Alder reaction product obtained (Diels-Alder). Maleic rosin is an amorphous, transparent solid resin. Wherein the molecular formula, relative molecular mass and structural formula adduct as follows. Molecular formula. C24H32O5; Molecular weight. 400.52 (according to 2001 international relative atomic mass); Structure. 4. Technical Requirements Product specification requirements of the indicators are shown in Table 1. Table 1 maleic rosin Specifications project index 115 Malay Malay rosin rosin a 103 b Appearance transparent solid Colour Red brown color red Not deep in the "Chinese rosin color grading standards" - five

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