1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-20806-6 SANS 237:2008Edition 3SOUTH AFRICAN NATIONAL STANDARD Toilet soap Published by Standards South Africa 1 dr lategan road groenkloof
4、 private bag x191 pretoria 0001 tel: 012 428 7911 fax: 012 344 1568 international code + 27 12 www.stansa.co.za Standards South Africa SANS 237:2008 Edition 3 Table of changes Change No. Date Scope Foreword This South African standard was approved by National Committee StanSA SC 5140.01B, Detergents
5、, polishes and other chemicals Detergents, soaps and cleaners, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement. This document was published in March 2008. This document supersedes SABS 237:2000 (edition 2.2). A reference is made in 7.2 to
6、“national regulations and statutory requirements“. In South Africa, this means the Foodstuffs, Cosmetics and Disinfectants Act, 1972 (Act No. 54 of 1972) and the Trade Metrology Act, 1973 (Act No. 77 of 1973) (as amended from time to time). Annex A forms an integral part of this standard. Annex B is
7、 for information only. SANS 237:2008 Edition 3 1 Contents Page Foreword 1 Scope . 3 2 Normative references . 3 3 Definitions 3 4 Requirements . 4 5 Sampling and compliance with the standard . 5 6 Inspection and methods of test 6 6.1 Inspection 6 6.2 Preparation of test specimens 6 6.3 Free alkali co
8、ntent or free acid content . 6 6.4 Unsaponified plus unsaponifiable matter content . 7 6.5 Alcohol insoluble matter content 7 6.6 Fatty matter content 7 6.7 Chloride content 7 6.8 Rosin content of fatty matter . 7 7 Packing and marking . 7 Annex A (normative) Notes to purchasers 8 Annex B (informati
9、ve) Quality verification of toilet soap . 8 Bibliography . 8 SANS 237:2008 Edition 3 2 This page is intentionally left blank SANS 237:2008 Edition 3 3 Toilet soap 1 Scope This standard specifies the requirements for toilet soap for personal hygiene. This standard does not include requirements for sp
10、eciality soaps such as transparent soap, medicated soap and seawater soap. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referen
11、ced document (including any amendments) applies. Information on currently valid national and international standards can be obtained from Standards South Africa. SANS 169, Free alkali content and free acid content of light coloured soap products. SANS 5187, Fatty matter content of soap products. SAN
12、S 5188, Unsaponified plus unsaponifiable matter content of soap products. SANS 5189, Alcohol-insoluble matter content of soap products. SANS 5222, Identification of rosin in fatty matter. SANS 5223, Rosin content of fatty matter in soaps. SANS 5224, Chloride content of soap products (potentiometric
13、method). 3 Definitions For the purposes of this document, the following definitions apply. 3.1 batch soap manufactured from one boil or, in the case of continuous production processes, material from a single days production 3.2 boil soap from one pan or vat 3.3 SANS 237:2008 Edition 3 4 lot quantity
14、 of soap that bears the same batch identification, made by one manufacturer, and submitted at any one time for inspection and testing 3.4 unit tablet of soap with no covering 4 Requirements 4.1 General 4.1.1 Toilet soap shall, when visually examined in accordance with 6.1.2, a) be in a tablet form,
15、b) be homogeneous, well compressed and smooth, and c) when coloured, the colour shall not change appreciably during storage in its original container or wrapper at ambient temperature. 4.1.2 Toilet soap shall not be irritating to normal skin and it shall not contain ingredients in quantities that ar
16、e toxic to human beings. It shall lather freely in water, at ambient temperature, that has a hardness (expressed as calcium carbonate) of 200 10-6. 4.2 Odour Unless otherwise required (see annex A), toilet soap shall be perfumed and, both as received and when dissolved in hot water, shall possess a
17、pleasant odour. During a six-month storage period in its original container or wrapper at ambient temperature, it shall not develop an objectionable odour and, when perfumed, shall not change its fragrance. 4.3 Chemical requirements The chemical requirements of toilet soap shall, when tested in acco
18、rdance with the relevant tests in column 3 of table 1, comply with the requirements given in column 2 of table 1. SANS 237:2008 Edition 3 5 Table 1 Chemical requirements 1 2 3 Property Requirement Test method sub-clause Free alkali contenta (as sodium hydroxide), mass fraction, %, max. .or Free acid
19、 contenta (as oleic acid), mass fraction, %, max. 0,05 1,0 6.3 Unsaponified plus unsaponifiable matter contenta, mass fraction, %, max. .1,0 6.4 Alcohol insoluble matter contenta, mass fraction, %, max. . 1,2 6.5 Fatty matter contentb, mass fraction, %, min. .76,0 6.6 Ratio between (the actual fatty
20、 matter contentb the average mass of unitsc and (the specified minimum fatty matter content the specified unit mass), min. .1,0 Chloride contenta(as sodium chloride), mass fraction, %, max. . 0,8 6.7 Rosin content of fatty matter, mass fraction, %, max. . 3,0 6.8 aCorrected to a fatty matter content
21、 mass fraction of 76 %. bOn the soap as received. c See 6.2.1 5 Sampling and compliance with the standard 5.1 Sampling 5.1.1 General When no information concerning the implementation of quality control or testing during manufacture is available, the following sampling procedure shall be applied to d
22、etermine whether a lot submitted for inspection and testing complies with the requirements of the standard. The samples so taken shall be deemed to represent the lot for the respective properties. The sampling procedure shall also be used for adjudication in cases of dispute. NOTE Information on the
23、 quality verification of toilet soap is given in annex B. 5.1.2 Sample for inspection Draw at random from the lot a) five containers if the lot is packed in containers of net mass not exceeding 5 kg, and b) three containers if the lot is packed in containers of net mass greater than 5 kg. 5.1.3 Samp
24、le for testing 5.1.3.1 From the containers taken in accordance with 5.1.2, take at random enough soap to provide a laboratory sample of total mass at least 2 kg, unless the mass of individual units is 60 g or less. In this case, the laboratory sample can be reduced to a minimum of 1 kg. Take equal q
25、uantities of soap from all containers. SANS 237:2008 Edition 3 6 5.1.3.2 Place the laboratory sample in clean, dry, air-tight glass or plastics containers clearly marked with the manufacturers name or trade mark, the batch identification, and the date of sampling. 5.1.3.3 In the case of unwrapped so
26、ap, take the sample units from the centre of the container. 5.2 Compliance with the standard Deem the lot to comply with the requirements of the standard if, after inspection and testing of the samples taken in accordance with 5.1.2 and 5.1.3, the samples are found to comply with all the requirement
27、s of the standard. 6 Inspection and methods of test 6.1 Inspection 6.1.1 Inspect the containers (and when relevant the wrappers) taken in accordance with 5.1.2 for compliance with the requirements of clause 7. 6.1.2 Visually examine the samples taken in accordance with 5.1.2 for compliance with the
28、requirements given in 4.1 and 4.2. 6.2 Preparation of test specimens 6.2.1 Composite specimen 6.2.1.1 Determine and record the mass of each unit taken in accordance with 5.1.3 (including any material that may have adhered to the wrapper or to the sample container, as relevant). Calculate the average
29、 mass. 6.2.1.2 For units of mass exceeding 60 g, divide each unit into eight equal parts by cutting the unit in half along the length of the unit and then by cutting the two halves across the width three times. Ensure that all the cuts are at right angles to one another. Completely slice or grate fi
30、nely two diagonally opposite eighths of each unit. 6.2.1.3 For units of mass 60 g or less, completely slice or grate the entire unit. 6.2.1.4 Combine all the slices or gratings in a clean, dry, air-tight glass or plastics container (identified as in 5.1.3), and mix thoroughly. 6.2.2 Test specimens 6
31、.2.2.1 Immediately after preparing the composite specimen, take at one time all the test specimens required for analysis. 6.2.2.2 Weigh out the test specimen required for the determination of free alkali or free acid content last, and test it immediately. 6.2.2.3 Ensure that any pick-up or loss of m
32、oisture is reduced to a minimum by carrying out the weighing and the preparation of the test specimens as rapidly as possible. 6.3 Free alkali content or free acid content Use SANS 169. Check for compliance with table 1. SANS 237:2008 Edition 3 7 6.4 Unsaponified plus unsaponifiable matter content U
33、se SANS 5188. Check for compliance with table 1. 6.5 Alcohol insoluble matter content Use SANS 5189. Check for compliance with table 1. 6.6 Fatty matter content Use SANS 5187. Check for compliance with table 1. 6.7 Chloride content Use SANS 5224. Check for compliance with table 1. 6.8 Rosin content
34、of fatty matter Use SANS 5223 after confirming the presence of rosin by SANS 5222. Check for compliance with table 1. 7 Packing and marking 7.1 Packing 7.1.1 Unless otherwise required (see annex A), toilet soap shall, when visually examined, be so wrapped as to prevent excessive drying out, contamin
35、ation of the product, and staining of the wrapper. The flaps of the wrapper shall be properly secured. 7.1.2 The toilet soap shall be packed in containers that are strong enough to withstand normal usage and transportation. These containers may then be packed in bulk packages. Only soap from the sam
36、e batch shall be packed in a container and, when relevant, in a bulk package. 7.2 Marking Each container, bulk package and when relevant each wrapper shall bear in prominent, legible and indelible marking the information required in terms of the relevant national regulations and statutory requiremen
37、ts (see foreword) and the following additional information, as relevant: a) the manufacturers name or trade mark or both; b) the words “toilet soap“; c) the batch identification (this can appear on containers only); d) he mass, in grams, of the contents; e) in the case of containers, the number of t
38、ablets; and f) in the case of bulk packages, the number of containers or of tablets. SANS 237:2008 Edition 3 8 Annex A (normative) Notes to purchasers A.1 The following requirements shall be specified in tender invitations and in each order or contract: a) when relevant, that the soap shall not be p
39、erfumed (see 4.2); and b) when relevant, that the soap shall not be wrapped (see 7.1.1). A.2 The order or contract that specifies the requirements listed in A.1 shall be made available to inspection representatives for inspection purposes when so required. Annex B (informative) Quality verification
40、of toilet soap When a purchaser requires ongoing verification of the quality of toilet soap, it is suggested that, instead of concentrating solely on evaluation of the final product, he also direct his attention to the manufacturers quality system. In this connection it should be noted that SANS 9001 covers the provisions of an integrated quality system. Bibliography SANS 9001/ISO 9001, Quality management systems Requirements. Standards South Africa
