DRAFT UGANDA STANDARD  
  DUS 1566  
First Edition  
yyyy -mm-dd 
 
 
 Reference number  
DUS 1566: 201 7 
 
© UNBS 2017   
  
Pressed steel tanks — Specification s  
 DUS 1566: 2017  
ii © UNBS 2017  – All rights reserved  
 Compliance with this standard does not, of itself confer immunity from legal obligations  
A Uganda Standard does not purport to include all necessary provisions of a contract. Users are 
responsible for its correct ap plication  
© UNBS 2017   
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilised in any 
form or by any means, electronic or mechanical, including photocopying and microfilm, without prior written 
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 41 4 333 2 50/1/2/3  
Fax: +256 41 4 286 123  
E-mail: info@unbs.go.ug  
Web: www.unbs.go.ug  DUS 1566: 201 7 
© UNBS 2017  – All rights reserved  iii 
 Contents  Page 
Foreword  ................................ ................................ ................................ ................................ ............................  iv 
1 Scope  ................................ ................................ ................................ ................................ ......................  1 
2 Normative references  ................................ ................................ ................................ ............................  1 
3 Terms and definitions  ................................ ................................ ................................ ...........................  2 
4 Working te mperatures  ................................ ................................ ................................ ..........................  2 
5 Types of tanks  ................................ ................................ ................................ ................................ ....... 2 
6 Processes of manufacture  ................................ ................................ ................................ ...................  2 
7 Materials  ................................ ................................ ................................ ................................ .................  2 
7.1 Steel plates  ................................ ................................ ................................ ................................ .............  2 
7.2 Bolts, studs, nuts and washers  ................................ ................................ ................................ ...........  2 
7.3 Jointing material  ................................ ................................ ................................ ................................ .... 2 
7.4 Electrodes  ................................ ................................ ................................ ................................ ..............  3 
7.5 Protective coating  ................................ ................................ ................................ ................................ . 3 
8 Dimensions of unit panels  ................................ ................................ ................................ ....................  3 
9 Nominal thickness of unit panels  ................................ ................................ ................................ ........  3 
10 Permissible stresses  ................................ ................................ ................................ .............................  4 
11 Flanges of panels  ................................ ................................ ................................ ................................ .. 4 
12 Staying  ................................ ................................ ................................ ................................ ....................  5 
13 Connections  ................................ ................................ ................................ ................................ ...........  5 
14 Welding of connections  ................................ ................................ ................................ ........................  8 
15 Inlet and overflow pipes ................................ ................................ ................................ ........................  8 
16 Access ladders  ................................ ................................ ................................ ................................ ...... 8 
17 Covered tanks  ................................ ................................ ................................ ................................ ........  8 
18 Minimum access  ................................ ................................ ................................ ................................ .... 8 
19 Supports  ................................ ................................ ................................ ................................ .................  8 
20 Finishing  ................................ ................................ ................................ ................................ .................  9 
21 Test ................................ ................................ ................................ ................................ .........................  9 
22 Inspection  ................................ ................................ ................................ ................................ ...............  9 
22.1  Works inspection  ................................ ................................ ................................ ................................ ... 9 
22.2  Site inspection  ................................ ................................ ................................ ................................ ....... 9 
23 Packing  ................................ ................................ ................................ ................................ ...................  9 
24 Marking  ................................ ................................ ................................ ................................ ...................  9 
Bibliography  ................................ ................................ ................................ ................................ ......................  18 
 DUS 1566: 2017  
iv © UNBS 2017  – All rights reserved  
 Foreword  
Uganda National Bureau of Standards (UNBS) is a parastatal under the Ministry of Trade , Industry and 
Cooperatives establi shed 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 Standardisation (ISO) and  
(b) a contact point for the WHO/FAO Codex Alimentarius 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 out through Technical Committees. A Technical 
Committee is established to deliberate on standards in a given field or area and consists of key stakeholders 
including government, academia, consumer groups, private sector and other interested parties.  
Draft Uganda Standards adopted by the Technical Committee are widely circulated to stakeholders and the  
general public for comments. The committee reviews the comments before recommending the draft standards 
for approval and declaration as Uganda Standards by the National Standards Council.  
The committee responsible for this document is Technical Committee UNBS/TC 4, [Mechanical Engineering 
and Metallurgy] . 
 DRAFT UGANDA STANDARD  DUS  1566: 2017  
 
© UNBS 2017 – All rights reserve d 1 
 Pressed steel tanks — Specification  
1 Scope   
This draft Uganda Standard specifies requirements for materials, fabrication, erection and supply of pressed 
steel tanks for the storage of cold and hot wat er and certain other liquids, under a pressure not greater than 
the static head corresponding to the depth of the tank.  
2 Normative references   
The following referenced documents referred to in the text in such a way that some or all of their content 
const itutes requirements of this document. For dated references, only the edition cited applies. For undated 
references, the latest edition of the referenced document (including any amendments) applies.  
ISO 7452 , Hot – rolled steel plates — Tolerances on dimens ions and shape  
ISO 887,  Plain washers for metric bolts, screws and nuts for general purposes — General plan  
ISO 10721 -1, Steel structures — Part 1: Materials and design  
ISO 10799 -1, Cold -formed welded structural hollow sections of non -alloy and fine grain  steels — Part 1: 
Technical delivery conditions  
US ISO 15609 -1, Specification and qualification of welding procedures for metallic materials — Welding 
procedure specification — Part 1: Arc welding  
ISO 12944 -1, Paints and varnishes — Corrosion protection of  steel structures by protective coating systems 
— Part 1: General introduction  
ISO 12944 -2, Paints and varnishes — Corrosion protection of steel structures by protective paint systems — 
Part 2: Classification of environments  
ISO 12944 -3, Paints and varnish es — Corrosion protection of steel structures by protective paint systems — 
Part 3: Design considerations  
ISO 12944 -4, Paints and varnishes — Corrosion protection of steel structures by protective paint systems — 
Part 4: Types of surface and surface prepar ation  
ISO 12944 -5, Paints and varnishes — Corrosion protection of steel structures by protective paint systems — 
Part 5: Protective paint systems  
ISO 12944 -6, Paints and varnishes — Corrosion protection of steel structures by protective paint systems — 
Part 6: Laboratory performance test methods  
ISO 12944 -7, Paints and varnishes — Corrosion protection of steel structures by protective paint systems — 
Part 7: Execution and supervision of paint work  
ISO 12944 -8, Paints and varnishes — Corrosion protection of steel structures by protective paint systems — 
Part 8: Development of specifications for new work and maintenance  DUS 1566: 2017  
2 © UNBS 2017  – All rights reserved  
 ISO 8992 , Fasteners — General requirements for bolts, screws, studs and nuts  
ISO 1461 , Hot dip galvanized coating s on fabricated iron and stee l articles — Specifications and test methods  
US ISO 6929 , Steel products — Vocabulary   
3 Terms and definitions   
For the purposes of this document, the terms and definitions given in US ISO 6929  apply.  
ISO and IEC maintain terminological databases for use in standardization at the following addresses:  
— ISO Online browsing platform: available at http://www.iso.org/obp  
4 Working temperatures  
For the purpose of this Draft Uganda Standard, the following working temperatures shall be applied:  
4.1 Cold liquid  — liquid at a temperature not exceeding 40 °C.  
4.2 Hot liquid  — liquid  at a temperature above 40 °C, but not exceeding 100 °C.  
5 Types of tanks  
Pressed tanks shall be of the following three types:  
a) Type 1  — Tanks with all flanges external.  
b) Type 2  — Tanks with all flanges internal.  
c) Type 3  — Tanks with bottom flanges internal and side flanges external.  
6 Processes of manufacture  
Tank panels may be either hot pressed complete or cold pressed with flange corners welded.  
7 Materials  
7.1 Steel plates  
The steel used in the manufacture of pressed steel tanks shall conform to ISO 7452 . 
7.2 Bolts, studs, nuts and washers  
Bolts, studs and nuts used for the manufacture of steel tanks shall conform to ISO 8992 . Bolts and nuts shall 
be hexagonal form, screwed IS O metric. Washers shall comply with ISO 887 . 
7.3 Jointing material  
The material used for jointing shall be insoluble in the liquid to be stored, non -toxic where necessary and shall 
be capable of withstanding the temperature variation (see Clause 3)  DUS 1566: 201 7 
© UNBS 2017  – All rights reserved  3 
 The m aterial shall be of a suitable type, depending upon the purpose for and conditions under which the tank 
is to be used.  
7.4 Electrodes  
Electrodes for welding shall be compatible with material .  
7.5 Protective coating  
All tanks shall be coated with suitab le protective coatings such as fibreglass, epoxy paints, bituminous paints 
or galvanizing. All materials used for internal protective coating shall be non -toxic.  
8 Dimensions of unit panels  
The nominal size of unit panels shall be 1 220 mm2 or 1 000 mm2, the actual overall dimensions depending 
upon the particular manufacturer of the plates. The size of tanks shall be specified as multiples of the nominal 
dimensions. The typical sizes, approximate weights and nominal capacities of tanks shall be as shown i n 
Tables 2, 3, 4, 5, 6, 7, 8, and 9.  
9 Nominal thickness of unit panels  
9.1 For cold liquids  with a specific gravity of 1.0 the nominal thickness of the plate from which the unit 
panels are pressed shall be as given in Table 1.  
Table 1 — Minimum thicknes s of panels  
Depth of tank  
mm Description of panels with regard to their 
location  Thickness of plates  
mm 
1 000  Bottom of sides (cubic tanks only)  4.0 
1 220  Bottom of sides (cubic tanks only)  5.0 
2 000  Bottom and first tier of sides  
Top of sides  4.0 
4.0 
2 440  Bottom and first tier of sides  
Top of sides  5.0 
5.0 
3 000  Bottom and first tier of sides  
Second tier of sides  
Top tier of sides  5.0 
5.0 
4.0 
3 660  Bottom and first tier of sides  
Second tier of sides  
Top tier of sides  5.0 
5.0 
5.0 
4 000  Bottom and fi rst tier of sides  
Second tier of sides  
Third and Top tier of sides  5.0 
5.0 
4.0 
4 880 or 5 000  Bottom and first tier of sides  
Second tier of sides  
Third and Top tier of sides  6.0 
5.0 
5.0 
 DUS 1566: 2017  
4 © UNBS 2017  – All rights reserved  
 9.2 For hot liquids, other than for domestic potable water, with a specific gravity not exceeding 1.0, no plate 
shall be less than 6 mm in thickness:  
9.3 For cold or hot liquids with a specific gravity greater than 1.0 the plate thickness shall be agreed upon 
between the purchaser and the manufacturer.  
10 Permissible st resses  
The calculated stress in any stay, attachment and bolts shall comply with the requirements of ISO 10721 -1, 
and any allowance that may be required for corrosion shall be added to the calculated thickness.  
11 Flanges of panels  
Panels shall be press ed free of irregularities with flanges as shown in Figures 1 and 2, at an angle of 45° and 
90° to the face of the panel on all four sides (Figure 1) or a single flange at an angle of 90° to the face of the 
panel on each of two, three or four sides (Figure 2). They shall be holed on one, two, three or four sides, 
according to the respective position of the plate in the tank and be free from irregularities.  
 
Figure 1 — 450 and 900 Flange jointed tank  
 
Figure 2 — 900 Flange jointed tank  
The width of mating surfaces of flanges shall not be less than 45 mm, the holes for the bolts having a 
minimum diameter of 14 mm (M14). The spacing of the bolt hole s shall not exceed 80 mm pitch.  DUS 1566: 201 7 
© UNBS 2017  – All rights reserved  5 
 12 Staying  
12.1 The sides and ends of tanks shall be supported by stays at the junction of two or more panels. The 
stays shall be made from mild steel rolled sections calculated in accordance with Clause 8. Stays shall be 
attached to the panels by bolting to cleats of equal strength bo lted to tank panels. Stay attachments to cleats 
and cleats to the tank plates shall be calculated taking into account an eccentricity of loading. The ends of the 
stays shall be attached to the cleats or tank panels by bolts.  
12.2 Stays shall connect sides  and ends to bottom, and/or horizontal sides to ends in accordance with Figure 
3. 
 
Figure 3 — Tapped socket and boss welded into tank plate  
 
13 Connections  
Pads for connections, tapped bosses, screwed flanges or sockets, as may b e required, shall be welded or 
bolted to the inside or outside or the tank panel. Pads shall be seal welded and drilled, and/or tapped to suit 
flanges. Single pads shall be provided for connection on one side of the plate and double pads for connection 
on both sides of the plate. Tapped sockets shall comply with the requirements laid down in ISO 10799 -1 or 
any other relevant Uganda Standard.  
Typical types of welded connections are shown in Figures 3 to 7.  
 
Figure 4 — Screwe d flang e welded to tank plate  DUS 1566: 2017  
6 © UNBS 2017  – All rights reserved  
 
 
Figure 5 — Single pad welded to tank plate  
 
Figure 6 — Double pad welded to tank plate  
 
Figure 7 — Thick pad welded to tank plate  DUS 1566: 201 7 
© UNBS 2017  – All rights reserved  7 
 
 
Figure 8 — Typical  press steel sectional rectangular tank with external flanges  
 
Figure 9 — Rolled steel joist supports for pressed steel tanks  
 
Figure 10 — Dwarf wall supports for pressed steel tanks  DUS 1566: 2017  
8 © UNBS 2017  – All rights reserved  
 14 Welding of connections . 
Where connections are welded to the tanks as well as where the corners are welded, the welding shall be 
done by the metal -arc process complying with US ISO 15609 -1 or any other relevant Uganda  Standard. The 
plates and connections  and fusion faces shall be free from rust, paint or other foreign matter. Where the plates 
are cut, edges shall be dressed smooth. Pads shall be flush with the plates before welding commences. The 
size of the welds shall conform to those shown in Figures 3  to 7 and the welds shall be even and free from 
cracks or blow holes. The welds shall be completely fused to the parent metal without under cut.  
15 Inlet and overflow pipes  
Inlet pipes and the overflow pipes, if arranged through the bottom of the tan k, sh all be of bell mouth type.  
16 Access ladders  
Tanks over 1 220 mm deep shall be provided with a steel internal access ladder of a minimum width of 400 
mm. The maximum spacing of rungs shall be 300 mm. In the case of covered tanks the ladder sh all be 
adjace nt to the manhole.  
17 Covered tanks  
17.1 Roofing and framing members shall be designed  to withstand superimposed loads.  
17.2 Covers may be flat for indoor use and shall be pitched or cambered for outdoor use, and jointed to 
ensure that  they are dust and w ater proof.  
17.3 Covers shall be constructed of mild steel sheets or galvanized sheets complying with ISO 1461 with a 
minimum thi ckness of 2 mm.  
17.4 In all cases, covered tanks shall be provided with a manhole of not less than 450 mm diameter if 
circular or 450 mm x 450 mm if square, to give access to the inside of the tank. Covered tanks shall be insect 
and dust free. Vent pipes shall be provided, and have a flanged b end at the top and be filtered.  
18 Minimum access  
Where tanks with external flanges are to be erected in a confined space, it is essential that a clearance of not 
less than 500 mm shall be provided all round the outside and underneath to facilitate erection. For access to 
the top of a closed tank the clearance from the highest point shall be not less than 750 mm. Allowance should 
be made for inspection and maintenance including val ves or other external fittings.  
19 Supports  
Supports for the tanks shall be in accordance with the engineers’ details and manufacturers’ instructions. All 
tanks sho uld be effectively supported in accordance with the manufacturer's instructions. Supports should be 
provided continuously under each bottom flange in one direction at 1 220 mm or 1 000 mm. Tanks with 
internal bottom flanges can also rest directly on a flat  level base. A sand/bitumen bed 50 mm thick is 
recommended in that case. Where steel joints are used they should be designed to carry the imposed load 
with a maximum deflection of one five -hundredth (1/500) of the span. Attention is drawn to the extra reac tion 
on the supports under the side, end and division plates when the stays of sides, ends and divisions are 
inclined to the bottom of the tank. (For typical support details see Figures 9 and 10.)  DUS 1566: 201 7 
© UNBS 2017  – All rights reserved  9 
 20 Finishing  
After erection, unless otherwise specified, the tank shall be internally finished with two coats of non -toxic, anti -
corrosion paints in accordance with ISO 12944, Parts 1 -8. 
21 Test  
Each tank shall be tested on site after erection for leakage under full static head. Testing shall be by filling the 
tank with water or the liquid to be stored for a minimum of 12 hours or as agreed between the purchaser and 
the manufacturer. The water or liquid shall be supplied by the purchaser  
22 Inspection  
22.1 Works inspection  
The purchaser or his representative shall have access to the works of the manufacturer at all reasonable 
times and shall be at liberty to inspect and to reject any material which does not comply with the requirements 
of this standard. Such inspection shall include verification that the unit panels shall mate together and 
assemble. Where partial or complete assembly is required at the works of the manufacturer, this shall be 
agreed between the purchaser and the manufacturer at the time of enquiry and order.  
22.2 Site inspection  
The purchaser  or his representative shall ensure that supports are within the tolerances required by the 
manufacturer before the commencement of erection. Foundation details for the supports of the tanks shall 
conform to the engineer’s details.  
23 Packing  
Precautions  shall be taken to protect the components of the tank from damage while in transit. Unit panels 
and components shall be packed in convenient bundles, riveted or bolted together or bound with iron strip or 
suitable wire. All rivets, bolts, nuts, etc. shall be packed in suitable containers.  
24 Marking  
Tank panels shall be legibly marked with the following particulars:  
a) manufacturer's name or trade mark;  
b) size and thickness of the panels; and  
c) the number of this standard.  DUS 1566: 2017  
10 © UNBS 2017  – All rights reserved  
 Table 2 — Typical sizes, approximate weights and nominal capacities of tanks  
Tanks 1 220 mm deep. Plates 5 mm thick  
Nominal tank 
size No. of 
panels 
in 
tank Nominal 
capacity 
(Litres)  Approximate 
total weight 
when empty 
(kg) Approximate outside dimensions  
Length x 
Breadth  Length 
(mm)  Breadth (mm)  Depth 
(mm)  
1 220 x 1 220  5  1 818  400 1 400  1 400  1 300  
2 440 x 1 220  8  3 637  660  2 600  1 400  1 300  
3 660 x 1 220  11  5 455  863  3 800  1 400  1 300  
2 440 x 2 440  12  7 273  965  2 600  2 600  1 300  
3 660 x 2 440  16  10 910  1 270  3 800  2 600  1 300  
4 880 x 2 440  20  14 547  1 575  5 000  2 600  1 300  
6 100 x 2 440  24  18 184  1 930  6 200  2 600  1 300  
3 660 x 3 660  21  16 366  1 676  3 800  3 800  1 300  
4 880 x 3 660  26  21 821  2 083  5 000  3 800  1 300  
6 100 x 3 660  31  27 276  2 489  6 200  3 800  1 300  
7 320 x 3 660  36  32 731  2 896  7 500  3 800  1 300  
8 540 x 3 660  41  38 186  3 353  8 700  3 800  1 300  
4 880 x 4 880  31 29 094  2 591  5 000  5 000  1 300  
6100x4 880  38  36 368  3 048  6 200  5 000  1 300  
7 320 x 4 880  44  43 641  3 505  7 500  5 000  1 300  
3 540 x 4 880  48 50 915  4 064  8 700  5 000  1 300  
9 760 x 4 880  56  58 189  4 674  10 000  5 000  1 300  
6 100 x 6 100  45  45 460  3 607  6 200  6 200  1 300  
7 320 x 6 100  52  54 552  4 166  7 500  6 200  1 300  
7 320 x 7 320  60  65 462  4 724  7 500  7 500  1 300  
8 540 x 8 540  77  89 102  6 147  8 700  8 700  1 300  
Note 1. Approximate total weights include plates, stays, cleats, nuts, washers and jointing material.  
Note 2. Nominal capacities are without allowance for freeboard.  
 DUS 1566: 201 7 
© UNBS 2017  – All rights reserved  11 
 Table 3 — typical sizes, approximate weights and nominal capacities of tanks  
Tanks 2 440 mm deep. Plates 5 mm thick.  
Nominal tank size  No. of 
panels in 
tank Nominal 
capacity  
(Litres)  Appr oximate 
total weight 
when empty 
(kg) Approximate outside dimensions  
Length x breadth (mm)  Length 
(mm)  Breadth 
(mm)  Depth 
(mm)  
2 240 x 1 220  14  7 273  1 168  2 600  1 400  2 500  
3 660 x 1 220  19  10 910  1 626  3 800  1 400  2 500  
4 880 x 1 220  24  14 547  2 083  5 000  1 400  2 500  
2 440 x 2 440  20  14 547  1 676  2 600  2 600  2 500  
3 660 x 2 440  26  21 821  2 184  3 800  2 600  2 500  
4 800 x 2 440  32  29 094  2 692  5 000  2 600  2 500  
6 100 x 2 440  38  36 368  3 150  6 200  2 600  2 500  
3 660 x 3 660  33  32 731  2 743  3 800  3 800  2 500  
4 880 x 3 660  40  43 641  3 302  5 000  3 800  2 500  
6 100 x 3 660  47  54 552  3 912  6 200  3 800  2 500  
7 320 x 3 660  48 65 462  4 470  7 500  3 800  2 500  
8 540 x 3 660  48 76 373  5 080  8 700  3 800  2 500  
4 880 x 4 880  48  58 190  4 013  5 000  5 000  2 500  
6 100 x 4 880  56  72 736  4 674  6 200  5 000  2 500  
7 320 x 4 880  64  87 283  5 385  6 200  5 000  2 500  
8 540 x 4 880  72  101 830  6 096  7 500  5 000  2 500  
9 760 x 4 880  80  116 378  6 807  10 000  5 000  2 500  
6 100 x 6 100  65  90 920  5 537  6 200  6 200  2 500  
7 320 x 6 100  74  109 104  6 147  7 500  6 200  2 500  
7 320 x 7 320  84  130 925  7 061  7 500  7 500  2 500  
8 540 x 8 540  105  178 203  8 738  8 700  8 700  2 500  
Note 1. Approximate total weights include plates, stays, cleats, nuts, washers and jointing material.  
Note 2. Nominal capacities are without allowance for freeboard  
 DUS 1566: 2017  
12 © UNBS 2017  – All rights reserved  
  
Table 4 — typical sizes, approximate weights and n ominal capacities of tanks  
Tanks 3 660 mm deep. Plates 5 mm thick.  
Tank size  No. of 
panels 
in tank  
 
 Nominal 
capacity  
(Litres)  Approximate 
total weight 
when empty (kg)  Approximate outside dimensions  
Length x 
breadth (mm)  Length (mm)  Breadth 
(mm)  Depth 
(mm)  
3 660 x 3 660  45  49 097  4 572  3 800  3 800  3 700  
4 880 x 3 660  54  65 462  5 537  5 000  3 800  3 700  
4 880 x 4 880  64  87 283  6 553  5 000  3 000  3 700  
6 100 x 4 880  74  109 104  7 620  6 200  5 000  3 700  
6 100 x 6 100  85  136 380  8 687  6 200  6 200  3 700  
7 320 x 6 100  96  163 656  9 957  7 500  6 200  3 700  
7 320 x 7 320  108  175 500  196 387  7 500  7 500  3 700  
8 540 x 7 320  120  229 118  12 495  8 700  7 500  3 700  
8 540 x 8 540  133  267 305  13 868  8 700  8 700  3 700  
8 760 x 8 540  146  305 491  15 240  10 000  8 700  3 700  
10 980 x 8 540  159  343 678  16 612  11 100  8 700  3 700  
9 760 x 9 760  160  349 133  16 713  10 000  10 000  3 700  
10 980 x 9 760  174  392 774  18 237  11 100  10 000  3 700  
12 200 x 9 760  188  436 416  19 710  12 400  10 000  3 700  
10 980 x 10 980  189  441 871  19 812  11 100  11 100  3 700  
12 200 x 10 980  204  490 960  21 387  12 400  11 100  3 700  
12 200 x 12 200  220  545 520  23 165  12 400  12 400  3 700  
13 420 x 12 200  236  600 072  24 841  13 600  12 400  3 700  
13 420 x 13 420  253  660 079  26 772  13 600  13 600  3 700  
14 640 x 13 420  270  720 086  28 550  14 800  13 600  3 700  
14 640 x 14 640  288  785 549  30 531  14 800  14 800  3 700  
15 860 x 14 640  306  851 011  32 410  16 000  14 800  3 700  
15 860 x 15 860  325  921 929  34 493  16 000  16 000  3 700  
Note 1. Approximate total weights include plates, stays, cleats, nuts, washers and jointing material.  
Note 2. Nominal capacities are wit hout allowance for freeboard.  
 DUS 1566: 201 7 
© UNBS 2017  – All rights reserved  13 
  
Table 5 — typical sizes, approximate weights and nominal capacities of tanks  
Tanks 4 880 mm deep. Plates 5 mm and 6 mm thick.  
Nominal tank 
size No. of 
panels in 
tank Nominal 
capacity 
(Litres)  Approximate 
Total weight 
when empty 
(kg) Approximate outside dimensions  
Length x breadth 
(mm)  Length 
(mm)  Breadth 
(mm)  Depth (mm)  
3 660 x 3 660  57  65 462  6 350  3 800  3 800  4 900  
4 880 x 3 660  68  87 283  7 722  5 000  3 800  4 900  
4 880 x 4 880  80  116 378  8 890  5 000  ~ 5 000  4 900  
6 100 x 4 880  92  145 472  10 211  6 200  5 000  4 900  
6100x6100  105  181 840  11 684  6 200  6 200  4 900  
7320x6100  118  218 208  13 208  7 500  6 200  4 900  
7 320 x 7 320  132  261 850  14 834  7 500  7 500  4 900  
8 540 x  7 320  146  305 491  16 358  8 700  7 500  4 900  
8 540 x 8 540  161  356 406  18 034  8 700  8 700  4 900  
9 760 x 8 540  176  407 322  19 812  10 000  8 700  4 900  
10 980 x 8 540  191  459 237  21 438  11 100  8 700  4 900  
9 760 x 9 760  192  465 510  21 641  10 000  10 000  4 900  
10 980 x 9 760  208  523 699  23 571  11 100  10 000  4 900  
12 200 x 9 760  224  581 888  25 298  12 400  10 000  4 900  
10 980 x 10 980  225  589 162  25 705  11 100  11 100  4 900  
12 200 x 10 980  242  654 624  27 381  12 400  11 100  4 900  
12 200 x 12 200  260  727 360  20 464  12 400  12 400  4 900  
13 420 x 12 200  278  800 096  31 496  13 600  12 400  4 900  
13 420 x 13 420  297  880 106  33 782  13 600  13 600  4 900  
14 640 x 13 420  316  960 115  35 91 6  14 800  13 600  4 900  
14 640 x 14 640  336  1047 398  38 202  14 800  14 800  4 900  
15 860 x 14 640  356  1134 682  40 538  16 000  14 800  4 900  
15 860 x 15 860  377  1229 238  42 977  16 000  16 000  4 900  
Note 1. Approximate total weights inc lude plats, stays, cleats, nuts, washers and jointing material.  
Note 2. Nominal capacities are without allowance for freeboard.  
 DUS 1566: 2017  
14 © UNBS 2017  – All rights reserved  
 Table 6 — typical sizes, approximate weights and nominal capacities of tanks  
Tanks 1 000 mm deep. Plates 4 mm thick  
Nomina l tank 
size No. of 
panels in 
tank Nominal 
capacity  
(Litres)  
 Approximate total 
weight when empty 
(kg)  
Approximate outside 
dimensions  
Length x 
breadth (mm)  Length  
(mm)  Breadth  
(mm)  Depth 
(mm)  
2 000 x 1 000  8  2 000  400  2 100  100  1 100  
3 000 x 1  000  11  3 000  550  3 100  1 100  1 100  
4 000 x 1 000  14  4 000  710 2100  1 100  1 100  
2 000 x 2 000  12  4 000  640  2100  2 100  1 100  
3 000 x 2 000  16  6 000  840  3 100  2 100  1 100  
4 000 x 2 000  20  80 00  1 040  4 100  2 100  1 100  
5 000 x 2 000  24  10 000  1 270  5 100  2 100  1 100  
3 000 x 3 000  21  9 000  1 080  3 100  3 100  1 100  
4 000 x 3 000  26  12000  1 340  4 100  3 100  1 100  
5 000 x 3 000  30 15000  1 610  5 100  3 100  1 100  
6 000 x 3 000  36  18 000  1 880  6 100  3 100  1 100  
4 000 x 4 000  32  16 000  1 670  4 100  4 100  1 100  
5 000 x 4 000  38  20 000  1 990  5 100  4 100  1 100  
6 000 x 4 000  44  24 000  2 320  6 100  4 100  1 100  
7 000 x 4 000  50  28 000  2 630  7 100  4 100  1 100  
8 000 x 4 000  56  32 000  2 920  8 100  4 100  1 100  
5 000 x 5 000  45  25 000  2 370  5 100  5 100  1 100  
6 000 x 5 000  52  30 000  2 740  6 100  6 100  1 100  
6 000 x 6 000  60  36 000  3 170  6 100  6 100  1 100  
7 000 x 6 000  68  42 000  3 580  71 00  6 100  1 100  
7 000 x 7 000  77  49 000  4 080  7 100  7 100  1 100  
Note 1. Approximate total weights include plats, stays, cleats, nuts, washers and jointing material.  
Note 2. Nominal capacities are without allowance for freeboard.  
 DUS 1566: 201 7 
© UNBS 2017  – All rights reserved  15 
 Table 7 — typical size s, approximate weights and nominal capacities of tanks  
Tanks 2 000 mm deep. Plates 4 mm thick  
Nominal tank size  no. of panels 
in tank  nominal 
capacity  
(Litres)  approximate total weight 
when empty (kg)  approximate outside 
dimensions  
Length x breadth  
(mm)  Length 
(mm)  Breadth 
(mm)  Depth 
(mm)  
2 000 x 1 000  14  4 000  740  2 100  1 100  2 100  
3 000 x 1 000  19  6 000  1 000  3 100  1 100  2 100  
4000x1000  24  8 000  1 270  4 100  1 100  2 100  
2 000 x 2 000  20  8 000  1 130  2 100  2 100  2 100  
3 000 x 2 000  26  12 000  1 470  3 100  2 100  2 100  
4 000 x 2 000  32  16 000  1 810  4 100  2 100  2 100  
5 000 x 2 000  38  20 000  2 140  5 100  2 100  2 100  
3 000 x 3 000  33  18 000  1 810  3 100  3 100  2 100  
4 000 x 3 000  40  24 00 0  2 200  4 100  3 100  2 100  
5 000 x 3 000  47  30 000  2 590  5 100  3 100  2 100  
6 000 x 3 000  54  36 000  2 980  6 100  3 100  2 100  
4 000 x 4 000  48  32 000  2 700  4 100  4 100  2 100  
5 000 x 4 000  56  40 000  3 120  5 100  4 100  2 100  
6 000 x 4 000  64  48 000  3 570  6 100  4 100  2 100  
7 000 x 4 000  72  56 000  4 020  7 100  4 100  2 100  
8 000 x 4 000  80  64 000  4 420  8 100  4 100  2 100  
5 000 x 5 000  65  50 000  3 530  5 100  5 100  2 100  
6 000 x 5 000  74  60 000  4 040   6 100  5 100  2 100  
6 000 x 6 000  84  72 000  4 600  6100  6 100  2 100  
7 000 x 6 000  94  84 000  5 160  7 100  6 100  2 100  
7 000 x 7 000  105  98 000  5 720  7 100  7 100  2 100  
Note 1. Approximate total weights include plats, stays, cleats, nuts, washers and jointing material. Note 2. Nominal capacities are without allowance for 
freeboard.  
Table 8 — typical sizes, approximate weights and nominal capacities of tanks  
Tanks 3 000 mm deep. Plates 4 mm and 5 mm thick  
Nominal tank 
Size  No. of 
panels in 
tank  Nominal 
capacity 
(Litres)  Approximate 
Total weight 
when empty 
(Kg)  Approximate outside dimensions  
Length x 
breadth (mm)  Length 
(mm)  Breadth 
(mm)  Depth 
(mm)  
3 000 x 3 000  45  27 000  2 890  3 100  3 100  3 100  
4 000 x 3 000  54  36 000  3 450  4 100  3 100  3 100  
4 000 x 4 000  64  48 000  4 240  4 100 ^  4100  3 100  
5 000 x 4 000  74  60 000  4 920  5 100  4 100  3 100  
5 000 x 5 000  85  75 000  5 550  5 100  5 100  3 100  DUS 1566: 2017  
16 © UNBS 2017  – All rights reserved  
 6 000 x 5 000  96  90 000  6 330  6 100  5 100  3 100  
6 000 x 6 000  108  108 000  7 200  6 100  6 100  3 100  
7 000 x 6 000  120  126 000  8 030  7 100  6 100  3 100  
8 000 x 6 000  132  144 000  8 880  8 100  6 100  3 100  
7 000 x 7 000  133  147 000  8 870  7 100  7 100  3 100  
8 000 x 7 000  146  168 000  9 790  8 100  7 100  3 100  
9 000 x 7 000  159  189 000  10 720  9 100  7 100  3 100  
8 000 x 8 000  160  192 000  10 800  8 100  8 100  3 100  
9 000 x 8 000  174  216 000  11 790  9 100  8 100  3 100  
10 000 x 8 000  188  240 000  12 770  10 100  8 100  3 100  
9 000 x 9 000  189  243 000  12 820  9 100  9 100  3 100  
10 000 x 10 000  220  300 000  15 000  10 100  10 100  3 100  
11 000 x 10 000  236  330 000  16 110  1 1100  10 100  3 100  
11 000 x 11 000  253  363 000  17 300  11 100  11 100  3 100  
12 000 x 11 000  270  396 000  18 490  12 100  11 100  3 100  
12 000 x 12 000  288  432 000  19 740  12 100  12 100  3 100  
13 000 x 12 000  306  468 000  20 990  13 100  12 100  3 100  
13 000 x 13 000  325  507 000  22 300  13 100  13 10 0  3 100  
Note 1. Approximate total weights include plats, stays, cleats, nuts, washers and jointing material.  
Note 2. Nominal capacities are without allowance for freeboard.  
 
Table 9 — Typical sizes, approximate weights and nominal capacities of tanks   
Tanks 4000 mm deep. Plates 4 mm and 5 mm thick  
Nominal tank 
Size No. of 
panels 
in 
tank Nominal 
capacity  
(Litres)  Approximate total 
weight when 
empty (Kg)  Approximate outside 
dimensions  
Length x 
breadth (mm)  Length 
(mm)  Breadth 
(mm)  Depth 
(mm)  
3 000 x 3 000  57  36 000  3 700  3 100  3 100  3 100  
4 000 x 3 000  68  48 000  4 460  4 100  3 100  3 100  
4 000 x 4 000  80  64 000  5 450  4 100  4 100  4 100  
5 000 x 4 000  92  80 000  6 290  5 100  4 100  4 100  
5 000 x 5 000  105  100 000  7 290  5 100  5 100  4 100  
6 000 x 5 000  118  120 000  8 140  6 100  5 100  4 100  
6 000 x 6 000  132  144 000  9 270  6 100  6 100  4 100  
7 000 x 6 000  146  168 000  10 340  7 100  6 100  4 100  
8 000 x 6 000  160  192 000  11 440  8 100  6 100  4 100  
7 000 x 7 000  161  196 000  11 200  7 100  7 100  4 100  DUS 1566: 201 7 
© UNBS 2017  – All rights reserved  17 
 8 000 x 7 000  176  224 000  12 350  8 100  7 100  4 100  
9 000 x 7 000  191  252 000  13 490  9 100  7 100  4 100  
8 000 x 8 000  . 192  256 000  13 600  8 100  8 100  4 100  
9 000 x 8 000  208  288 000  14 800  9 100  8 100  4 100  
10 000 x 8 000  224  320 000  16 040  10 100  8 100  4 100  
9 000 x 9 000  225  324 000  16 180  9 100  9 100  4 100  
10 000 x 10 000  260  400 000  18 850  10 100  10 100  4 100  
11 000 x 10 000  278  440 000  20 210  11 100  10 100  4 100  
11 000 x 11 000  297  484 000  21 620  11 100  11 100  4 100  
12 000 x 11 000  316  528 000  22 920  12 100  11 100  4 100  
12 000 x 12 000  336  576 000  24 540  12 100  12 100  4 100  
13 000 x 12 000  356  624 000  26 040  13 100  12 100  3 100  
13 000 x 13 000  377  676 000  27 600  13 100  13 100  3 100  
Note 1. Approximate total weights include plat es, stays, cleats, nuts, washers and jointing material.  
Note 2. Nominal capacities are without allowance for freeboard.  
 DUS 1566: 2017  
18 © UNBS 2017  – All rights reserved  
 Bibliography  
[1] IS 804: 1967, Specification for rectangular pressed steel tanks  
[2] KS 761:2010, Pressed steel tanks — Specifications  
 WDUS 1566: 201 7 
© UNBS 2017 – All rights reserve d 19 
 Certification marking  
Products that conform to Uganda standards may be marked with Uganda National Bureau of Standard s 
(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 licensed under the certification mark scheme operated by 
the Uganda National Bureau of Standards and in conjunction with the relevant Uganda Standard. The 
presence of this mark on a product or in relation to a product is an assurance that the goods comply with the 
requirements of that standard under a system of supervision, control and testing in accordance with the 
certification mark scheme of the Uganda National Bureau of Standards. UNBS marked products are 
continually checked by UNBS for conformity to that standard.  
Further particulars of the terms and con ditions of licensing may be obtained from the Director, Uganda 
National Bureau of Standards.  
 
 WDUS 1566: 2017    
 
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Price based on nn pages  
© UNBS 2017 – All rights reserved