FINAL DRAFT UGANDA 
STANDARD  
  FDUS 1906-1  
First Edition  
2018-04 -16  
 
 Ref erence number 
FDUS 1906- 1:2018 
© UNBS 2018  
  
Library furniture and fittings — Part 1: Timber — S pecification 
 FDUS 1906-1:2018 
ii © UNBS 2018 – All rights reserved
 Compliance with this standard does not, of itself c onfer immunity from legal obligations 
A Uganda Standard does not purport to include all n ecessary provisions of a contract. Users are 
responsible for its correct application  
© UNBS 2018 
All rights reserved. Unless otherwise specified, no  part of this publication may be reproduced or util ised in any 
form or by any means, electronic or mechanical, inc luding photocopying and microfilm, without prior wr itten 
permission from UNBS. 
Requests for permission to reproduce this document should be addressed to 
The Executive Director 
Uganda National Bureau of Standards 
P.O. Box 6329 
Kampala 
Uganda 
Tel: +256 417 333 250/1/2 
Fax: +256 414 286 123 
E-mail: info@unbs.go.ug  
Web: www.unbs.go.ug  FDUS 1906-1:2018 
© UNBS 2018 – All rights reserved  iii
 Contents Page  
Foreword .......................................... ................................................... ................................................... ............. v  
1 Scope ............................................. ................................................... ................................................... ... 1 
2 Normative references .............................. ................................................... ........................................... 1  
3 Terms and definitions ............................. ................................................... ........................................... 2  
4 Material requirements ............................. ................................................... ........................................... 2  
4.1  Wood particleboards ............................... ................................................... ........................................... 2  
4.2  Veneered particleboards ........................... ................................................... ........................................ 2  
4.3  Plywood ........................................... ................................................... ................................................... . 2 
4.4  Blockboards ....................................... ................................................... ................................................. 3  
4.5  Timber ............................................ ................................................... ................................................... ... 3 
4.6  Adhesive .......................................... ................................................... ................................................... . 3 
4.7  Wood screws ....................................... ................................................... ............................................... 3  
4.8  Paints, enamels and varnishes ..................... ................................................... .................................... 3  
5 Dimensions and tolerances ......................... ................................................... ...................................... 3  
5.1  Dimensions ........................................ ................................................... ................................................. 3  
5.2  Tolerances ........................................ ................................................... ...................................................  3 
6 Fabrication ....................................... ................................................... ...................................................  4 
6.1  Bays .............................................. ................................................... ................................................... .... 4 
6.2  Uprights .......................................... ................................................... ................................................... .. 4 
6.3  Single faced unit racks ........................... ................................................... ........................................... 4  
6.4  Double faced unit racks ........................... ................................................... .......................................... 4  
6.4.1  General ........................................... ................................................... ................................................... .. 4 
6.4.2  Shelf planks ...................................... ................................................... .................................................. 4 
6.4.3  Partition ......................................... ................................................... ................................................... ... 5 
6.4.4  Label holder ...................................... ................................................... .................................................. 5 
6.5  Loading ........................................... ................................................... ................................................... .. 5 
7 Bay guide holders ................................. ................................................... ............................................. 5  
8 Book trolley ...................................... ................................................... ...................................................  5 
9 Catalogue cards tray and cabinet .................. ................................................... ................................... 6  
9.1  Dimensions and construction of tray ............... ................................................... ................................ 6  
9.2  Dimensions and construction of cabinet ............ ................................................... ............................. 7  
9.2.1  General ........................................... ................................................... ................................................... .. 7 
9.2.2  Dimensions ........................................ ................................................... ................................................. 7  
9.2.3  Construction ...................................... ................................................... ................................................. 7  
10  Catalogue cards box ............................... ................................................... ........................................... 8  
11  Catalogue cards work tray ......................... ................................................... ....................................... 9  
12  Control region fittings ........................... ................................................... ........................................... 10  
12.1  Control region .................................... ................................................... ............................................... 10  
12.2  Counter ........................................... ................................................... ...................................................  11  
12.3  Control gates ..................................... ................................................... ............................................... 11  
13  Charging trays .................................... ................................................... .............................................. 11  
14  Reading room table ................................ ................................................... .......................................... 12  
15  Study table ....................................... ................................................... ................................................. 1 2  
16  Periodicals display rack .......................... ................................................... ........................................ 13  FDUS 1906-1:2018 
iv © UNBS 2018 – All rights reserved
 16.1  Dimensions ........................................ ................................................... ............................................... 13  
16.2  Construction ...................................... ................................................... ............................................... 13  
17  Chairs ............................................ ................................................... ................................................... . 14  
18  Display stand ..................................... ................................................... ............................................... 15  
19  Finishing ......................................... ................................................... .................................................. 15  
20  Marking ........................................... ................................................... .................................................. 15  
Bibliography ...................................... ................................................... ................................................... ......... 17  
 FDUS 1906-1:2018 
© UNBS 2018 – All rights reserved  v
 Foreword 
Uganda National Bureau of Standards (UNBS) is a par astatal under the Ministry of Trade, Industry and 
Cooperatives established under Cap 327, of the Laws  of Uganda, as amended.  UNBS is mandated to co-
ordinate the elaboration of standards and is  
(a) a member of International Organisation for Stan dardisation (ISO) and  
(b) a contact point for the WHO/FAO Codex Alimentar ius Commission on Food Standards, and  
(c) the National Enquiry Point on TBT Agreement of the World Trade Organisation (WTO). 
The work of preparing Uganda Standards is carried o ut through Technical Committees. A Technical 
Committee is established to deliberate on standards  in a given field or area and consists of key stake holders 
including government, academia, consumer groups, pr ivate sector and other interested parties.  
Draft Uganda Standards adopted by the Technical Com mittee are widely circulated to stakeholders and th e 
general public for comments. The committee reviews the comments before recommending the draft standard s 
for approval and declaration as Uganda Standards by  the National Standards Council. 
The committee responsible for this document is Tech nical Committee UNBS/TC 12, Furniture .   FINAL DRAFT UGANDA STANDARD FDUS 1906-1: 2018 
 
© UNBS 2018  – All rights reserved  1
 Library furniture and fittings — Part 1: Timber — S pecification  
1 Scope  
This Final Draft Uganda Standard specifies the requ irements for the following items of wooden furnitur e meant 
for use in a library: 
a) unit book rack; 
b) bay guide holder; 
c) book trolley; 
d) catalogue cards tray and cabinet; 
e) catalogue cards box; 
f) catalogue cards work tray; 
g) control region fittings; 
h) charging trays; 
i) reading room table; 
j) study table; 
k) periodicals display rack; 
l) chairs; and 
m) display stand. 
2 Normative references  
The following referenced documents referred to in t he text in such a way that some or all of their con tent 
constitutes requirements of this document. For date d references, only the edition cited applies. For u ndated 
references, the latest edition of the referenced do cument (including any amendments) applies. 
ISO 9089, Wooden screw-specifications 
ISO 13609, Blockboards and batten boards for genera l use-Specification. 
ISO 19210, Adhesives -- Wood adhesives for non-stru ctural applications 
ISO 25537, Mirror, specification 
US ISO 12465, Plywood for general purpose use- spec ification FDUS 1906-1:2018 
2 © UNBS 2018 – All rights reserved
 US 839, Particleboards specification 
3 Terms and definitions 
For the purposes of this document, the following te rms and definitions apply.  
3.1 
bay   
Part of the face of a rack between two consecutive uprights 
3.2 
double faced unit rack 
Rack consisting of three uprights forming four open  bays, two on each face 
3.3  
label holder  
groove along the front edge of the shelf plank desi gned to hold the shelf label so as to allow its mov ement 
from end to end 
3.4  
partition or bay stop 
divider fitted between the bay-pairs opening into t he two opposite sides of a unit book rack 
3.5 
shelf plank 
horizontal support for books, spanning a bay 
3.6  
single faced unit rack 
Rack consisting of three uprights forming two bays 
3.7  
upright  
Vertical supporting element of a rack 
4 Material requirements 
4.1 Wood particleboards  
Wood particleboards required for the manufacture of  various items of furniture shall conform to ISO 16 893 and 
shall be of type FPSI or FPTH, that is, flat presse d single-layer board or flat pressed three-layer bo ard. Wood 
particleboard used for wooden racks, cabinets, etc. , which require baking paints or enamel finishes sh all be 
manufactured with only BWR type of adhesives like p henol formaldehyde. 
4.2 Veneered particleboards 
Both interior and exterior grades of veneered parti cleboards may be used where the furniture items are  to be 
finished with air-drying paints or varnishes. Where  oven-baking paints, enamel or varnishes are to be used, 
only exterior grade veneered particleboards shall b e used.  
4.3 Plywood 
Plywood used in the manufacture of various items of  furniture and fittings for use in libraries shall conform to 
US ISO 12465. Any of the three grades, namely BWR, WWR and CWR of plywood may be used for items 
which are to be finished with air-drying paints, en amel or varnishes. Where items are finished with ov en-drying FDUS 1906-1:2018 
© UNBS 2018 – All rights reserved  3
 paints, enamel or varnishes, only BWR grade of plyw ood shall be used. The plywood used shall not be in ferior 
to Type BB.   
4.4 Blockboards  
Blockboards shall conform to ISO 13609 and shall be  of Grade 1 or 2, where air-drying finishes are ado pted 
and Grade 1 only where oven-drying finishes are ado pted in the manufacture of furniture items and fitt ings 
prescribed in this standard.  
4.5 Timber  
Any of the species of timber recommended for furnit ure and cabinet making shall be used in the manufac ture 
of wooden furniture and fittings used in libraries.  The timber used shall have a moisture content not more than 
15 %.   
4.6 Adhesive  
Adhesive used for joinery work shall conform to ISO  19210. 
4.7 Wood screws 
Wood screws shall conform to ISO 9089. 
4.8 Paints, enamels and varnishes  
These shall conform to the relevant Uganda Standard s, wherever they exist, for air-drying as well as s toving 
finishes 
5 Dimensions and tolerances 
5.1 Dimensions  
The overall dimensions of the unit book racks shall  be as given in Table 1. Generally a 350-mm centre- to-
centre distance should be adopted for shelves. 
5.2 Tolerances 
The overall dimensions specified in Table 1 shall n ot vary by more than5 mm. The wooden book racks sha ll 
be rectangular at all the measurable surfaces withi n a tolerance of ± 8 mm between the two diagonals o f the 
rectangle. 
Table 1 — Dimensions of unit book racks 
S/No. Unit book rack Height 
mm Width  
mm Depth  
mm 
i Double - faced 2 200 2 000 450 
ii Single - faced 2 200 2 000 300 
 FDUS 1906-1:2018 
4 © UNBS 2018 – All rights reserved
 6 Fabrication 
6.1 Bays 
Each bay shall have seven shelf planks out of which  three (the topmost, central and the bottommost) sh all be 
fixed and four shall be adjustable. 
NOTE The heavy and outsize books should be kept on their sides instead of on their bottom edges. 
6.2 Uprights 
The uprights shall be of not less than 35 mm thickn ess. 
6.3 Single faced unit racks 
Single faced unit racks shall be fabricated accordi ng to the specifications    
6.4 Double faced unit racks 
6.4.1 General 
A typical illustration of a double faced unit rack is shown in Figure 1. 
 
6.4.2 Shelf planks 
The thickness of shelf planks shall be not less tha n 25 mm. The depth of the shelf plank on top, centr e and 
bottom of the rack shall be 450 mm. The depth of th e adjustable shelf plank shall be 220 mm to allow s pace 
for the partition to be inserted between the bay pa irs, opening into opposite faces. FDUS 1906-1:2018 
© UNBS 2018 – All rights reserved  5
 6.4.3 Partition 
To  prevent the books in one face from getting mixed up  with those of the other face, a partition (or bay stop) 
shall be provided. The partition shall start from t he bottom of the topmost fixed plank and stop 150 m m above 
the top of the bottommost fixed plank 
6.4.4 Label holder 
The label  holder shall be wrought along the front edge of eac h shelf plank and shall admit card strips 15 mm 
wide. It shall be in the form of a wedge shaped gro ove from end-to-end to hold the shelf label strips.  
6.5 Loading 
Notwithstanding the provisions of minimum thickness , the shelf planks shall be designed to carry a sta tic load 
of 40 kg per shelf plank per bay; and the bottom sh elf plank in case of double faced unit racks shall be 
designed to carry a load of 80 kg. 
7 Bay guide holders 
The external dimensions of bay guide holders shall be 400 mm x 200 mm. It shall be provided with a gro ove 
arrangement so that the guide could be  slid along the length. It shall also have hooks for  suspension from a 
rod or from rings above. 
8 Book trolley 
8.1 The essential features of a book trolley are shown in Figure 2.  
 
 
8.2 The trolley shall have two pairs of sloping shelves  and one flat bottom shelf for books of large size.  FDUS 1906-1:2018 
6 © UNBS 2018 – All rights reserved
 8.3  The height of the trolley shall be 750 mm the same  as that of a table. 
8.4  The planks shall be suitably supported such as by iron rods and the uprights rigidly connected to eac h 
other and shall fulfill the loading requirements.   
8.5 Suitable protection may be provided at the bottom corners and the ends of uprights to minimize damage  
due to knocking against other furniture or fittings  or walls or pillars. 
8.6 The trolley shall be fitted with four rubber tyred  ball-bearing wheels; one of the swiveling type at each 
end and two of the fixed type in the centre. 
9 Catalogue cards tray and cabinet 
9.1 Dimensions and construction of tray 
9.1.1 The size of the catalogue cards tray is based on th e card size of 125 mm x 75 mm. 
9.1.2  Each tray shall be constructed as shown in Figure 3. 
9.1.2.1  1 The external dimensions of the tray shall be 155 m m x 100 mm x 430 mm. The side and back 
planks shall be 12 mm thick and 55 mm high. The fro nt plank of the tray shall be 155 mm wide and 1.00 mm 
high. 
9.1.2.2  A central strip (not shown in Figure 3) shall be p rovided at the bottom of the tray to receive a 
device to prevent the sliding of the card rest. It shall be 30 mm x 5 mm.  
 
 
 
9.1.2.3  The bottom of the tray shall also be fitted with t wo reapers 25 mm x 5 mm (not shown), properly 
centered and inter-connected. The bottom shall not be covered in order to prevent collection of dust. 
9.1.2.4  A brass rod or a rod of similar corrosion resistin g material, 5 mm in diameter shall be fitted right 
through the centre of tray to lock up the cards. A knob shall be screwed to the rod projecting through  the face 
plank, to permit pulling out of the rod. The rod sh all be held at the back of the plank with a hook. 
9.1.2.5  To prevent the tray from being accidently pulled e ntirely out of the socket, a self locking gravity 
catch shall be fixed suitably. FDUS 1906-1:2018 
© UNBS 2018 – All rights reserved  7
 9.1.2.6  A brass label holder shall be provided at the face  plank just above the centre. The face plank may 
also be fitted with a knob or a handle to pull the tray. 
9.1.2.7 A movable card rest with a hole in the appropriate position for the brass rod to pass through it 
shall be fitted. A fixed card rest adjacent to the face plank or a suitable slope of the rear of the f ace plank, 
shall also be provided. 
9.2 Dimensions and construction of cabinet 
9.2.1 General 
The cabinet shall consist of two parts: 
a) the cabinet, and 
b) the stand on which the cabinet rests. 
9.2.2 Dimensions 
The dimensions of the cabinet shall depend upon the  number of trays it carries. The overall dimensions  of the 
catalogue cards cabinets having different number of  trays shall be as given in Table 2. 
Table 2 — Dimensions of catalogue cards cabinets 
S/No. Number of 
trays Length 
mm Height 
mm Depth  
mm 
Stand Body 
i 36 1 090 710 675 455 
ii 30 1 090 840 560 455 
iii 24 1 090 840 455 455 
iv 20 915 840 455 455 
v 16 710 840 455 455 
vi 12 560 710 455 455 
vii 9 560 710 345 455 
 
9.2.3 Construction 
9.2.3.1  A typical illustration of the cabinet consisting o f 36 trays in six columns of six trays each is show n 
in Figure 4. FDUS 1906-1:2018 
8 © UNBS 2018 – All rights reserved
 
 
9.2.3.2  The planks used for the sides, 20 mm thick, back, bottom and top shall be used 
9.2.3.3 The front of the cabinet shall be divided into six vertical columns  by means of five intermediate 
planks 20 mm thick and 100 mm wide. 
9.2.3.4 The front of the columns shall be connected with th e back of the cabinet by pairs of cross bearers 
at regular intervals to give a clear socket opening  for the tray to fit in. The cross bearer shall hav e 20 mm 
thickness and 25 mm width.  
9.2.3.5 Suitable arrangements shall be made to lock at leas t two consecutive columns by one device. 
9.2.3.6  A pull out slide, where desired, may be provided w ithin the cabinet. 
10 Catalogue cards box 
10.1 The catalogue cards box shall be constructed as sho wn in Figure 5. 
 
 FDUS 1906-1:2018 
© UNBS 2018 – All rights reserved  9
 
 
10.2 The box and its lid shall be of equal height, so th at when fully open each of them rests on the table top. 
10.3  The bottom part shall be provided with a brass lab el holder and a pair of flat bra and hooks. The lid  shall 
have the eyes to take the hooks. 
11 Catalogue cards work tray 
Catalogue cards work tray is functionally the same as the catalogue cards box but it is more like a tr ay (see 
Figure 6). A fixed and a movable card rest shall be  provided as in 9.1.2.7. 
 
 FDUS 1906-1:2018 
10 © UNBS 2018 – All rights reserved
 
 
 
12 Control region fittings 
12.1 Control region 
12.1.1 The size of control region shall depend on the foll owing: 
a) size of library; 
b) clientele of the library; 
c) number of books issued out; and 
d)  records to be maintained at the counter. 
12.1.2  The dimensions of control region shall depend on n umber of persons operating the control region. 
The essential dimensions required to enable operati on per person shall be as indicated in Figure 7. FDUS 1906-1:2018 
© UNBS 2018 – All rights reserved  11
 ,
  
12.2 Counter 
The counter shall have three shelves all round exce pt at places intended to be occupied by the circula tion 
staff as shown in Figure 7, where kneehole space, 6 00 mm wide, shall be provided. 
At a height of 1 350 mm from the ground there shall  be a transparent plate shelf or a wooden shelf wit h plastic 
laminates all around. This shelf shall be cantileve red and there shall be no vertical support near the  working 
edge of the counter so that an un-interrupted space  is available on the counter deck for free movement  of 
trays. The vertical barrier between the counter dec k and the shelf at the farther edge shall be of woo d with 
plastic laminates or veneers. If the counter is to be against a wall the side which touches the wall m ay not be 
provided with the shelf.  
12.3 Control gates 
The control gates shall consist of either 3 single leaf door with a gravity hinge or another similar d evice. The 
clear passage when the central gate is open, shall be approximately 500 mm. 
13 Charging trays 
13.1 Charging trays are meant for containing readers’ ti ckets and may have one, two, three or four 
compartments.  
13.2  The essential dimensions of the charging trays dep end upon the size of the tickets issued. The overal l 
dimensions of various trays shall be according to N ewark Charging System or Browne Charging System as 
given in Table 3. The outer planks shall be of 18 m m thickness and the inner partitions for making 
compartments shall be 12 mm thick.   FDUS 1906-1:2018 
12 © UNBS 2018 – All rights reserved
 14 Reading room table 
14.1 The size of the reading room table shall be 900 mm x 600 mm for single and 2 400 mm x 600 mm for 
three readers. A typical illustration of the readin g room table is shown in Figure 8. The height of th e table top 
shall be 750 mm. 
 
 
14.2 The minimum kneehole space per reader shall be 450 mm deep, 650 mm high and 600 mm wide.  
14.3 The  footrest, either in the form of a fixed rod or as a  separate pipe shall be provided at the height of 1 50 
mm from the floor. 
15 Study table 
15.1 A study table shall have the same dimensions as the  reading room table for a single reader, that is, 9 00 
mm x 600 mm. It may have additional provisions for the following: 
a) side drawers with locking arrangement; and 
b) shelf space for keeping documents on the top of the table with lighting arrangement. 
15.2  A typical illustration of the study table is shown  in Figure 9. 
Dimensions in millimeters 
 FDUS 1906-1:2018 
© UNBS 2018 – All rights reserved  13
 
 
Figure 9 — Typical illustration of study table 
16 Periodicals display rack 
16.1 Dimensions 
The  overall dimensions of the periodicals display rack shall be as follows: 
a) height: 1910 mm; 
b) width: 1435 mm; and 
c) depth: 405 mm 
16.2 Construction 
A periodicals display rack shall consist of twenty five compartments in five rows. Each compartment sh all be 
of the size 265 mm x 345 mm and it shall be fitted with a display shelf having a handle cum label hold er. The 
outer sides of the rack shall be of 18 mm thick tea k board. The uprights, top and bottom shelves shall  also be 
made of teak board of 18 mm: thickness. Intermediat e horizontal shelves shall be of 12 mm commercial p ly 
and the display shelves shall be of teak wood frame  with 5 mm teak ply. 
A typical illustration of a periodicals display rac k is shown in Figure 10. FDUS 1906-1:2018 
14 © UNBS 2018 – All rights reserved
 
 
17 Chairs 
17.1 The essential dimensions of  wooden chairs shall be as given in 17.1.1 to 17.1.6  and illustrated in Figure 
11.  
 
17.1.1  The height of top of the seat of the chair above f loor level shall be 450 mm. FDUS 1906-1:2018 
© UNBS 2018 – All rights reserved  15
 17.1.2  The maximum effective depth of the seat shall be 45 0 mm. This shall be measured from a vertical line 
through the centre of the front edge of the seat to  a vertical lint through the centre of the back edg e of the 
seat. 
17.1.3  The seat shall be either horizontal or sloping down wards between 2º to 3º, from front to back. 
17.1.4  The minimum width of the seat shall be 450 mm. 
17.1.5  The minimum distance between the insides of the arms sh ould be not less than 460 mm. The height 
of the elbow rest above the effective seat height s hall be 200 mm. The arm rest may have a setback of 75 mm 
from the front edge of the seat. 
17.1.6  The height of back rest above the top of the seat shall be 450 mm. 
17.2 The chairs shall be fitted with noise-prevention p ads in the legs. 
17.3 The chair seats shall not be hard or upholstered bu t shall preferably be of woven material to ensure 
ventilation and slight yielding when in use. 
17.4 The back rest of the chair shall be curved in plan or so shaped to give comfort to the body. It shall 
neither be too curved to restrict the movement of t he back nor be too flat. 
17.5 The height of the  seat for counter chair shall de pend upon the height of the counter. 
18 Display stand 
18.1 The display stand shall be of 910 mm x 910 mm or 1 220 mm x 1 220 mm size. It shall be made of any 
soft surface board like perforated board, straw boa rd, etc. and shall be capable of holding pins. 
18.2 The display stand may either be single or double a s required. 
19 Finishing 
19.1  Wood  panel components shall be given a coat of primer pa int and filler. Wood putty shall be applied to 
all the surfaces requiring filling and shall confor m to the relevant Indian Standards. After preparing  the 
surfaces two coats of enamel or paint, that is, one  under-coat and one finishing coat shall be given. 
Alternatively, the surfaces may be stained and poli shed. The finishing coat shall be of synthetic air- drying 
enamel or stoving enamel for wood work. The enamel or paint shall’ be of exterior type and of a finish  and 
colour as required.  
In case of stoving enamels or paints, the component s of the finished furniture items shall be stored a t suitable 
temperature and for suitable time as advised by the  manufacturer of the enamel.  
19.2 The finish shall be smooth, uniformly applied and f ree from visible defects. It shall be well based an d 
shall not readily chip or flake. The dry film thick ness shall be not less than10 mm.  
19.3 All other components shall be finished in colour as  agreed to between the purchaser and the 
manufacturer. 
20 Marking 
All items manufactured in accordance with this stan dard shall be legibly and indelibly marked with the  
following: 
a) manufacturer’s name, address/trademark; FDUS 1906-1:2018 
16 © UNBS 2018 – All rights reserved
 b) name of the product; and 
c) country of origin in order to identify the produ ct. FDUS 1906-1:2018 
© UNBS 2018 – All rights reserved  17
 Bibliography 
IS 1829-1, Library furniture and fittings —  Specification   
 FDUS 1906-1:2018 
© UNBS 2018  – All rights reserved  19
 Certification marking 
Products that conform to Uganda standards may be ma rked with Uganda National Bureau of Standards 
(UNBS) Certification Mark shown in the figure below .  
The use of the UNBS Certification Mark is governed by the Standards Act, and the Regulations made 
thereunder. This mark can be used only by those lic ensed under the certification mark scheme operated by 
the Uganda National Bureau of Standards and in conj unction with the relevant Uganda Standard. The 
presence of this mark on a product or in relation t o a product is an assurance that the goods comply w ith the 
requirements of that standard under a system of sup ervision, control and testing in accordance with th e 
certification mark scheme of the Uganda National Bu reau of Standards. UNBS marked products are 
continually checked by UNBS for conformity to that standard.  
Further particulars of the terms and conditions of licensing may be obtained from the Director, Uganda  
National Bureau of Standards.  
 
 FDUS 1906-1:2018  
 
ICS nn.nnn.nn 
Price based on nn pages 
© UNBS 2018 – All rights reserved