CD 35 -5/SER/2018  
 KENYA STANDARD S 
 
 
 
 
 
 
 
 
Kenya Standard  
Furniture – Test Methods  
Part 5:  
Rebound test for drawers supported by work surface  
 
 
 
 
 
 
 
 
 
 
 
 STAGE 3        PUBLIC REVIEW  
KENYA BUREAU OF STANDARDS  CD 35 -5/SER/2018  
 
TC Representation  
 
The following organizations were represented  on the technical committee.  
   
Directorate of Occupational Safety and Health Services (DOSHS)  
Galua Fabricators Ltd  
Kenya Industrial Research and Development Institute (KIRDI)  
Kenya National Federation of Jua Kali Association (KNFJKA)  
Shauri Moyo Furnitur e Association  
Village Furnitures  
Kenya Bureau of Standards (KEBS)  - Secretariat  
 
 
 
 
 
 
REVISION OF KENYA STANDARDS  
 
In order to keep abreast of progress in industry, Kenya Standards shall be regularly reviewed. 
Suggestions for Improvements to published stan dards, addressed to the Managing Director, Kenya 
Bureau of Standards, are welcome.  
 
 
 
 
 
© Kenya Bureau of Standards, 2018  
Copyright. Users are reminded that by virtue of section 6 of the Copyright Act, Cap. 130 of the laws of Kenya, 
copyright subsists in a ll Kenya Standards and except as provided under section 7 of this Act, no Kenya Standard 
produced by Kenya Bureau of Standards may be reproduced, stored in a retrieval system in any form or transmitted 
by any means without prior permission in writing from the Managing Director.  
 
 
 
 CD 35 -5/SER/2018  
 
 
 
 
 
 
 
 
 
 
 
 
Kenya Standard  
Furniture – Test Methods  
Part5:  
Rebound test for drawers supported by work surface  
 
 
 
 
 
KENYA BUREAU OF STANDARDS (KEBS)  
Head Office:  P.O. Box 54974, Nairobi -00200, Tel.: (+254 020) 605490, 602350, Fax:  (+254 020) 604031  
E-Mail: info@kebs.org , Web: http://www.kebs.org  
 
Coast Region  Lake Region  North Rift Region  
P.O. Box 99376, Mombasa -80100  P.O. Box 2949, Kisumu -40100  P.O. Box 2138, Nakuru -20100  
Tel.: (+254 041) 222 9563, 2230939/40  Tel.: (+254 057) 23549, 22392  Tel.: (+254 051) 210553, 210555  
Fax: (+254 041) 229448  Fax: (+254 057) 21814  Fax: (+254 051) 2210076  
E-Mail: kebs_msa@swiftmombasa.com  E-mail: kebs_ksm@swiftk isumu.com   
 CD 35 -5/SER/2018  
 
Foreword  
Kenya Bureau of Standards is a national standards body (NSB). The work of preparing Kenya Standards 
is normally carried out through national technical committees. Each member body interested in a subject 
for which a technical committ ee has been established has the right to be represented on that committee. 
National organizations, governmental and non -governmental, in liaison with KEBS, also take part in the 
work.  
Kenya Standards are drafted in accordance with the rules given in the K S ISO/IEC  Directives, Part  2. 
The main task of technical committees is to prepare National Standards. Draft Kenya Standards adopted 
by the technical committees are circulated to the technical committee members for balloting. Publication 
as a Kenya Standard  requires approval by at least 2/3 of the members casting a vote.  
Attention is drawn to the possibility that some of the elements of this document may be the subject of 
patent rights. KEBS shall not be held responsible for identifying any or all such paten t rights.  
This Kenya Standard was prepared by Technical Committee KEBS/TC  164, Furniture . 
During the preparation of this standard, reference was made to the following documents:  
  
AS/NZS 4443, Office panel systems - Workstations  
 
The assistance derived fro m these publications is hereby acknowledged.  
 
 
 
 
 
 
 
 
 
 
 
 
 CD 35 -5/SER/2018  
 
Kenya Standard  
Furniture – Test Methods  
Part 5:  
Rebound test for drawers supported by work surface  
 
1  SCOPE   
This Kenya Standard sets out a method of evaluating the operational characteristics o f a desk drawer to 
ensure that it will not bounce back out when closed with force.  
 
Note: KS 2817: 2018  specifies the compliance requirements.  
 
2  PRINCIPLE   
A specified load and force is applied to test the ability of the drawer to rebound.  
 
3  APPARATUS   
The following apparatus shall be required:  
(a) Load of 80 g per linear millimeter.  
(b) Means of counting 100 cycles.  
(c) Force gauge with a spring rate of 1.8 N per millimeter.  
(d) Test load specified in Table 1.  
(e) Static load for drawers specified in Table 2.  
 
4  PROCEDUR E (see FIGURE 1)  
(a) Place the unit in its normal operating position.  
(b) Load the drawers uniformly, as specified in Table 1. For drawers with an inside clear width in 
excess of 330 mm, with the exception of those drawers with a front height 100 mm or greater, 
apply test loads proportionately higher in accordance with the following formula (all units in 
millimeters):  
 
W X L  = test load of drawer  
 330 
 Where  
 W = actual inside clear width dimension of drawer  
 L = test load per drawer front height.  
 Where the drawe rs are supported , load the work surface uniformly at 80 g per linear millimeter 
 distributed and centered along a line 200 mm in from the front edge.  
(c) Test for at least 100 open - close cycles.  
(d) Attach a force gauge with a spring rate of 1.8 N per millimeter  as shown in Figure 1. Open the 
drawer until the force specified in Table E2 has been applied.  
(e) Release the drawer allowing the force gauge to close the drawer.  
(f) Repeat this procedure 5 times and observe and measure after each closing.  
 
5 TEST REPORT   
The fo llowing information shall be reported:  
(a) Whether after testing any opening exceeded 40 mm with the drawer at any at -rest position.  
(b) Whether the unit showed structural damage, deformation or loss of serviceability.  
(c) Type of desk tested  
(d) Test equipment and test m ethod title or name  
(e) A notation that the test report must be reproduced in full.  
(f) The date of test.  
(g) The name and address of the testing authority.  CD 35 -5/SER/2018  
(h) Reference to this test method, i.e. KS 2819 Part 5 , Rebound test for drawers supported by 
surface top.  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 ALL DIMENSIONS IN MILLIMETERS  
FIGURE 1