DEAS 1017 -4:2019  
ICS 91.140.70  
 
© EA C 2019                                                                                                                               First Edition 2019   
 EAST AFRICAN STANDARD  
Sanitary appliances (vitreous china)  — Specification  — Part 4: Squatting 
pans  
EAST AFRICAN COMMUNITY  DEAS 1017 -4:2019  
ii © EAC 2019  – All rights reserved  
 Copyright notice  
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Reproduction for sales purposes may be subject to royalty payments or a licensing agreement.  
Violators may be prosecuted . DEAS 1017 -4:2019  
© EAC 2019  – All rights reserved  iii 
 Contents  Page 
Foreword  ................................ ................................ ................................ ................................ ............................  iv 
1 Scope  ................................ ................................ ................................ ................................ ......................  1 
2 Normative ref erences  ................................ ................................ ................................ ............................  1 
3 Terms and definitions  ................................ ................................ ................................ ...........................  1 
4 General requirements  ................................ ................................ ................................ ...........................  1 
4.1 Perfo rmance requirements  ................................ ................................ ................................ ...................  1 
4.2 Dimensions and tolerances  ................................ ................................ ................................ ..................  2 
5 Construction  ................................ ................................ ................................ ................................ ..........  3 
6 Finish  ................................ ................................ ................................ ................................ ......................  4 
7 Tests  ................................ ................................ ................................ ................................ .......................  4 
7.1 Flushing tests  ................................ ................................ ................................ ................................ ........  4 
7.1.1  Toilet paper test  ................................ ................................ ................................ ................................ ..... 4 
7.1.2  Smudge test  ................................ ................................ ................................ ................................ ...........  4 
7.1.3  Water holding capacity test  ................................ ................................ ................................ ..................  4 
7.1.4  Saw Dust Test ................................ ................................ ................................ ................................ ........  4 
7.1.5  Splash test  ................................ ................................ ................................ ................................ .............  5 
7.1.6  Ball test  ................................ ................................ ................................ ................................ ...................  5 
7.1.7  Load bearing test  ................................ ................................ ................................ ................................ ... 5 
7.1.8  Water renewal test  ................................ ................................ ................................ ................................ . 5 
7.1.9  Visual examination test ................................ ................................ ................................ .........................  5 
8 Sampling  process, inspection and lot inspection  ................................ ................................ .............  5 
9 Marking  ................................ ................................ ................................ ................................ ...................  5 
Bibliography  ................................ ................................ ................................ ................................ ........................  6 
 DEAS 1017 -4:2019  
iv © EAC 2019  – All rights reserved  
 Foreword  
Development of the Eas t African Standards has been necessitated by the need for harmonizing requirements 
governing quality of products and services in the East African Community. It is envisaged that through 
harmonized standardization, trade barriers that are encountered when g oods and services are exchanged 
within the Community will be removed.  
The Community has established an East African Standards Committee  (EASC)  mandated to develop and 
issue East African Standards  (EAS) . The Committee is composed of representatives of the National 
Standards Bodies in Partner States, together with the representatives from the public and private sector 
organizations  in the community .  
East African Standards are developed through  Technical Committees that are representative of key 
stakeholders  including government, academia, consumer groups, private sector and other interested parties. 
Draft East African Standards are circulated to stakeholders through the National Standards Bodies in the 
Partner States. The comments received are discussed and incorporated before finalization of standards, in 
accordance with the Principles and procedures for development of East African Standards. XXXXXX.  
East African Standards are subject to review, to keep pace with technological advances. Users of the East 
African Standards are therefore expected to ensure that they always have the latest versions of the standards 
they are implementing .  
The committee responsible for this document is Technical Committee EASC/TC 037, Utensils, cutlery, 
Sanitary wares and fitting s and domestic hardware . 
Attention is drawn to the possibility that some of the elements of this document may be subject of patent 
rights. EAC shall not be held responsible for identifying any or all such patent rights.  
 DRAFT EAST AFRICAN STANDARD  DEAS 1017 -4:2019  
 
© EAC 2019  – All rights reserved  1 
 Sanitary appliances  (vitreous chin a) — Specification  — Part 4: 
Squatting pans  
1 Scope   
This Draft East Africa Standard specifies the requirements for dimensions, construction, materials, and 
performance for vitreous China squatting water closet pans.  
2 Normative references   
The following d ocuments are referred to in the text in such a way that some or all of their content constitutes 
requirements of this document.  For dated references, only the edition cited applies. For undated references, 
the latest edition of the referenced document (inc luding any amendments) applies.  
DEAS 1017 -1:2019 , Vitreous sanitary appliances (vitreous china) — Part 1: General requirements  
DEAS 1017 -2:2019 , Sanitary applianc es (vitreous china) — Part 2: Wash down water closets — 
Specifications  
DEAS 1017 -6:2019 , Sanit ary appliances (vitreous china) — Part 6: Flushing cisterns — Specifications  
EAS 355 , Toilet paper — Specifications  
3 Terms and definitions   
For the purposes of this document, the terms and definitions given in DEAS 1017 -1:2019  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 General requirements  
The general requirements relating to material,  glazing, defects, minimum thickness  and tolerances shall 
conform to DEAS 1017 -1:2019 . 
4.1 Performance requirements  
4.1.1  Squatting pans shall pass all the flush tests as given in  clause 7 of this standard.  
4.1.2 Traps for Squatting pans should be designe d to minimize the risk of blockage and should prevent the 
leakage of contaminated water and foul air into the building.  
4.1.3  Squatting pans including their traps conforming to the requirements in clause 4, shall be deemed to 
be durable under normal oper ating conditions.   
2 © EAC 2019  – All rights reserved  
 4.2 Dimensions  and tolerances  
4.2.1  The functional and connecting dimensions of S and P traps shall conform to those given in Tables 1  
4.2.2 Squatting pans shall comply with the dimensions shown in Table 1 as indicated in Figure 1 and sh all be 
subjected to the tolerances permitted : 
Table 1 — Dimensions of squatting  pans  and traps  
Description  Code letterin g 
Figure 1  Dimensions (mm)  
Integral trap  Non-integral trap  
Height  A 320 ± 20  280 ± 20  
Overall length  B 600 min.  475 min.  
Width of pan C 265 min.  
310 max.  265 min.  
310 max.  
External diameter of outlet of 
pans  D 110 max.  110 max.  
Internal diameter of flush inlet 
socket  E 50 m  50 min.  
Length of squatting plate  F 230 min.  230 min.  
Width of squatting plate  G 100 min.  100 min.  
Depth o f flush inlet socket  H 25 min.  25 min.  
Depth of water seal  I 50 ± 5  50 ± 5  
Clearance below tip of plate  J 75 min.  75 min.  
External diameter of outlet of 
the trap  K — 110 max.  
Internal length  L 400 ± 10    
© EAC 2019  – All rights reserved  3 
 Figure 1 a) — Squatting WC pan (integral trap)  
 
 
Figure 1 b) — Squatting WC pan (non -integral trap)  
5 Construction  
5.1 General  
The WC pan shall be of one -piece construction. Each pan shall have an integral flushing rim.  The inside of 
the bottom of the pan shall be designed with a minimum slope of 250 from the front towards the outlet to 
enable easy and quick disposal while flushing.  The pan shall be provided with a trapped outlet. The designed 
flushing surface shall be smooth and regularly glazed to enable cleaning and prev ent accumulation of 
 
4 © EAC 2019  – All rights reserved  
 excrement The squatting pan shall comply with the dimensions shown in Table 1 and indicated in Figure 1 
and shall be subject to the tolerances permitted  
5.2 Each pan shall have either  S or P trap with or without gas vent. 
6 Finish  
The i nside of the pan shall be glazed uniform and smooth in order to ensure an efficient flush.  
7 Tests  
7.1 Flushing tests  
Tests for squatting pans shall be done in accordance with  requirements  given in 7.1.1, 7.1.2, 7.1.3, 7.1.4 
7.1.5 , 7.1.6, 7.1.7, 7.1.8 and 7.1.9.  For carrying out these tests, a flushing cistern conforming to DEAS 1017 -
6:2019  shall be fixed such that the height between the top of closet pan and bottom of the cistern is 1  250 
mm, minimum for high level and 700 mm, minimum for low level and the  closet pan is connected with cistern 
by a 40 mm outer diameter pipe.  
7.1.1 Toilet paper test  
The pan shall be filled with water to its nominal water seal level and charged with six pieces of EAS 355  toilet 
paper . It shall then be flushed. This test shall  be repeated four times and the pan shall discharge the full 
charge of the paper at least thrice out of four times.  
7.1.2 Smudge test  
The whole of the interior surface of the pan to 40 mm below the flushing rim shall be smudged with quartz 
power of contras ting colour passing through 1.18 mm sieve and shall then be flushed, carefully observing the 
surface of the pan during the flushing. Immediately after the flushing, there shall be no smudge left on the pan.  
7.1.3  Water holding capacity test  
The pan, when s ealed at the outlet and vent (if fitted) with watertight  seal, shall be capable of holding not less 
than 10 l of water between the normal water level and the highest possible water level of the pan as installed.  
7.1.4 Saw Dust Test  
7.1.4.1  Specification of  the saw dust  
20 g of dry sawdust  test sifted through 2 mm sieve.  
7.1.4.2  Procedure  
Set up the pan, cistern or flush valve and flush pipe (if required) as specified by the manufacturer. Charge the 
pan with water to its designed water seal level. Fully wet the entire internal surface of the pan below the rim. 
Sprinkle 20 g of fine dry sawdust  of above specification on the inside of the pan between the normal water 
level and the flushing rim as completely and evenly as possible. Then flush the pan.  
The sprink le saw dust should be cleaned below 40 mm of rim of pan.   
© EAC 2019  – All rights reserved  5 
 7.1.5  Splash test 
Set up pan, cistern or flush valve and flush pipe (if required) as specified by the manufacturer. Charge the pan 
with coloured water to its design water seal level. Ensure that the floor area is cleaned and dry where the 
splash test to be carried out. Activate the flush valve or cistern to discharge the squatting pan. Observe and 
record whether flushing water splashed over rim onto the floor. Repeat the test 5 times. Record whether t he 
flushing water splash over the rime onto the floor. Up to 10 isolated droplets shall not be the cause for 
rejection.  
7.1.6  Ball test  
7.1.6.1  Single ball test  
The ball shall be made of non -absorbent material. The relative density of the ball shall be bet ween 1.075 and 
1.080. The diameter of the ball shall be 43 + 0.5 mm. Place the ball into the water closet to be tested and then 
flush the water closet. The ball shall be discharged in the normal manner.  
7.1.6.2  Fifty ball test  
Fifty balls of non -absorbent material, having a mass each of 3.7 + 0.1 g, and a diameter of 20 + 0.1 mm shall 
be dropped into the water closet bowl and flushed. Repeat the test five times. A minimum of 85 % of all balls 
should be flushed out in the five tests.  
7.1.7  Load bearing test  
The water closet  shall be fixed in a stable arrangement on the  floor with proper screw. A load of 400
5
0
  kg or a  
force of 4.05 kN shall be applied for period of one  hour by placing it on a wooden beam with a cross  section of 
100 mm x 10 0 mm positioned across the  centre of the opening of the top surface of the water closet . There 
shall be no damage or defect which shall occur  to the water closet.  
7.1.8  Water renewal test  
Place one millimetre normal potassium permanganate solution in the t rap and mix thoroughly by stirring and 
flush the pan/suit. The trace of colour shall be cleared completely by the second flush for each test.  
7.1.9  Visual examination test  
When examined visually from a distance of 0.6 m, the surface of the WC pan shall no t show, to the unaided 
eye, blemishes or defects covered in DEAS 1017 -1:2019 . 
8 Sampling process, inspection and lot inspection  
The recommended method of sampling, process inspection and lot inspection shall be the same for water 
closets as given in DEAS 1 017-2:2019 . 
9 Marking  
Each piece of squatting pan shall be legibly and indelibly marked at a suitable place with the following:  
a) name or  trade mark of the manufacturer, and  
b) batch/lot number.   
6 © EAC 2019  – All rights reserved  
 Bibliography  
[1] IS 2556 -2:2004, Vitreous Sanitary appliances (vit reous china) — Specification part 3 Specific 
requirements of squatting pans  
[2] IS 2556 -7:2004, Vitreous sanitary appliances (vitreous china) — Specification: Part 7 — Specific 
requirements of accessories for sanitary appliances  
[3] KS 1024 -2:2010,  Vitreou s china wat er closet pans — Specification — Part 2: Vitreous china squatting 
washdown water closet pans  
 DEAS 1017 -4:2019    
 
© EAC 2019  – All rights reserved