SANS 5978-2008 Performance of wax polishes《蜡光剂性能》.pdf

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 978-0-626-21739-6 SANS 5978:2008Edition 2SOUTH AFRICAN NATIONAL STANDARD Performance of wax polishes Published by Standards South Africa 1 dr latega

4、n road groenkloof 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 5978:2008 Edition 2 Table of changes Change No. Date Scope Foreword This South African standard was approved by National Committee StanSA SC 51

5、40.01A, Detergents, polishes and other chemicals Polishes, in accordance with procedures of Standards South Africa, in compliance with annex 3 of the WTO/TBT agreement. This document was published in July 2008. This document supersedes SABS SM 978:1979 (first edition). SANS 5978:2008 Edition 2 1 Per

6、formance of wax polishes 1 Scope This standard specifies a method for the determination of the performance of wax polishes. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For unda

7、ted references, the latest edition of the referenced document (including any amendments) applies. Information on currently valid national and international standards can be obtained from Standards South Africa. SANS 1042, Polymer floor dressings. SANS 2813/ISO 2813, Paints and varnishes Determinatio

8、n of specular gloss of non-metallic paint films at 20, 60 and 85. 3 Test conditions Carry out the test at 24 C 2 C and a relative humidity of 50 % 5 %. 4 Apparatus a) Vinyl panel, a standard vinyl panel measuring 250 mm 250 mm as described in the relevant method in SANS 1042 and coated in accordance

9、 with the relevant methods in SANS 1042 with four coats of polymer floor dressing complying with the requirements of SABS 1042 for type 1 and giving a 60 specular gloss on the fourth coat of at least 80. b) Reflectometer, as described in SANS 2813. 5 Procedure 5.1 After the application of the fourth

10、 coat of dressing, allow the vinyl panel to age for at least 10 d before using it. 5.2 Evenly apply by means of a soft cloth, approximately 0,5 g of the polish sample to half the vinyl panel, noting the ease of application. 5.3 Note the time taken for the film on the vinyl panel to dry hard to the t

11、ouch. 5.4 When the film is dry, rub it vigorously, using a soft cloth and applying pressure. 5.5 Measure the 60 specular gloss of both halves of the panel in accordance with SANS 2813. SANS 5978:2008 Edition 2 2 6 Test report Report the following information: a) all the data needed to identify the laboratory sample tested; b) confirmation that the test was carried out in accordance with this standard; c) any deviation from this standard; and d) the results, for the 60 specular gloss of both halves of the panel. Standards South Africa