BS 2713-1966 Specification for 2-ethoxyethanol (ethylene glycol monoethyl ether)《2-乙氧基乙醇(乙二醇-乙基酯)规范》.pdf
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1、BRITISH STANDARD BS2713:1966 Incorporating Amendment No.1 Specification for 2-Ethoxyethanol (Ethylene glycol monoethyl ether)BS2713:1966 This BritishStandard, having been approved by the ChemicalsIndustry StandardsCommittee and endorsed by the Chairman oftheChemical Divisional Council, was published
2、 undertheauthority of the GeneralCouncil on 28October1966 BSI12-1999 First published May1956 First revision October1966 The following BSI references relate to the work on this standard: Committee references CIC/4 andCIC/4/5 Draft for comment D65/4963 ISBN 0 580 35991 3 Co-operating organizations The
3、 Chemicals Industry Standards Committee, under whose supervision this BritishStandard was prepared, consists of representatives from the following Government departments and industrial organizations: Board of Trade British Iron & Steel Federation Chemical Industries Association* Fertilizer Manufactu
4、rers Association Gas Council Institute of Vitreous Enamellers Institution of Gas Engineers Ministry of Defence, Army Department* Ministry of Health National Sulphuric Acid Association Royal Institute of Public Health & Hygiene The Government department and industrial organization marked with an aste
5、risk in the above list, together with the following, were directly represented on the committee entrusted with the preparation of this BritishStandard: British Pharmacopia Commission British Plastics Federation Ministry of Defence, Navy Department Ministry of Technology Laboratory of the Government
6、Chemist Oil and Colour Chemists Association Pharmaceutical Society of Great Britain Research Association of British Paint, Colour & Varnish Manufacturers Royal Institute of Chemistry Society for Analytical Chemistry Society of Chemical Industry Society of Motor Manufacturers and Traders Ltd. Toilet
7、Preparations Federation Amendments issued since publication Amd. No. Date of issue Comments 7628 May1993 Indicated by a sideline in the marginBS2713:1966 BSI 12-1999 i Contents Page Co-operating organizations Inside front cover Foreword ii 1 Scope 1 2 Description 1 3 Colour 1 4 Relative density 1 5
8、Distillation range 1 6 Miscibility with water 1 7 Water 1 8 Alkalinity or acidity 1 9 Sampling and size of sample 1 Appendix A Limit test for colour 2 Appendix B Method for the determination of distillation range 2 Appendix C Test for miscibility with water 3 Appendix D Method for the detection of a
9、lkalinity or determination of acidity 3BS2713:1966 ii BSI 12-1999 Foreword This standard makes reference to the following BritishStandards: BS593, Laboratory thermometers. BS604, Graduated measuring cylinders. BS612, Nessler cylinders. BS658, Apparatus for the determination of distillation range. BS
10、1792, One-mark volumetric flasks. BS2511, Methods for the determination of water (Karl Fischer method). BS3591, Industrial methylated spirits. BS3978, Water for laboratory use. BS4591, Method for determination of distillation characteristics of organic liquids (other than petroleum products). This s
11、tandard forms one of a series of BritishStandards for solvents and allied products. The preparation of this standard was authorized originally by the Fine Chemicals Industry Standards Committee (now merged in the Chemicals Industry Standards Committee). This BritishStandard was first issued in1956.
12、In the present revision the limits for relative density, water content and acidity have been made more stringent. The requirements in respect of distillation range now specify initial boiling point and dry point. A specific colour requirement has been included. A British Standard does not purport to
13、 include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover,
14、pagesi andii, pages1 to3 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.BS2713:1966 BSI 12-1999 1 1 Scope This BritishStandard specifies requirements for2-ethoxyet
15、hanol suitable for industrial purposes. 2 Description BritishStandard2-ethoxyethanol shall be clear and free from matter in suspension, and shall consist essentially of2-ethoxyethanol, C 2 H 5 O.CH 2 .CH 2 OH. 3 Colour The colour of the material shall not exceed15 Hazen units when measured by the me
16、thod described in Appendix A or by a suitable instrumental method. 4 Relative density The relative density 1)of the material at any one of the following temperatures shall be within the appropriate values as shown below: 5 Distillation range When the material is distilled by the method described in
17、Appendix B, the initial boiling point at760mmHg pressure shall not be below133.5 C and the dry point at760mmHg pressure shall not be above136.5 C. 6 Miscibility with water The material shall not show any opalescence when mixed with distilled water by the method described in Appendix C. 7 Water The m
18、aterial shall not contain more than0.1% by mass of water, determined by the method described in Clause2 of BS2511:1970 2)and using20ml of the material. 8 Alkalinity or acidity The material shall not be alkaline to phenolphthalein and shall not contain more than50 parts per million by mass of acid, c
19、alculated as acetic acid CH 3 COOH, determined by the method described in Appendix D. 9 Sampling and size of sample A representative sample of the material measuring not less than one litre shall be taken from the bulk for the purpose of examination in accordance with this specification. The sample
20、shall be placed in a clean, dry and air-tight glass-stoppered bottle of such a size that it is nearly filled by the sample. When it is necessary to seal the container, care shall be taken to avoid the risk of contaminating the contents in any way. NOTEThe BritishStandards Institution is the owner of
21、 a registered certification trade mark. This is shown below, enclosed in the words “Approved to BritishStandard”. This mark can be used only by manufacturers licensed under the certification mark scheme operated by the BSI. The presence of this mark on or in relation to a product is an assurance tha
22、t the goods have been produced to comply with the requirements of the BritishStandard under a system of supervision, control and testing operated during manufacture and including periodical inspection at the manufacturers works in accordance with the certification mark scheme of the BSI. Further par
23、ticulars of the terms of licence may be obtained from the Director, BritishStandards Institution,2 Park Street, London W.1. 1) Formerly “specific gravity”: “relative density” is the term adopted for this concept, with water as the reference substance, by the International Organization for Standardiz
24、ation (ISO). Temperature Relative density C 15.5/15.5 20/20 25/25 min. 0.934 0.931 0.928 max. 0.937 0.934 0.931 2) BS2511, “Methods for the determination of water (Karl Fischer method)”.BS2713:1966 2 BSI 12-1999 Appendix ALimit test for colour A.1 Apparatus a) Two Nessler cylinders 3) ,100ml capacit
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