DEAS 1017 -2:2019  
ICS 91.140.70  
 
© EAC 2019                                                                                                                              First Edition 2019   
 DRAFT EAST AFRICAN STANDARD  
Sanitary appliances  (Vitreous china)  — Specification  — Part 2: Wash 
down water closets   
EAST AFRICAN COMMUNITY  DEAS 1017 -2:2019  
ii © EAC 2019  – All rights res erved  
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Violators may be prosecuted . DEAS 1017 -2:2019  
© EAC 2019  – All rights reserved  iii 
 Contents  Page 
Foreword  ................................ ................................ ................................ ................................ ............................  iv 
1 Scope  ................................ ................................ ................................ ................................ ......................  1 
2 Normative references  ................................ ................................ ................................ ............................  1 
3 Terms and definitions  ................................ ................................ ................................ ...........................  1 
4 General requirements  ................................ ................................ ................................ ...........................  1 
5 Traps  ................................ ................................ ................................ ................................ .......................  1 
6 Dimensions  ................................ ................................ ................................ ................................ ............  3 
7 Construction and finish  ................................ ................................ ................................ ........................  3 
8 Tests  ................................ ................................ ................................ ................................ .......................  3 
8.1 General  ................................ ................................ ................................ ................................ ...................  3 
8.2 Flush tests  ................................ ................................ ................................ ................................ ..............  4 
8.2.1  Toilet paper test  ................................ ................................ ................................ ................................ ..... 4 
8.2.2  Smudge test  ................................ ................................ ................................ ................................ ...........  4 
8.2.3  Ball test  ................................ ................................ ................................ ................................ ...................  4 
8.3 Holding capacity test  ................................ ................................ ................................ ............................  4 
8.4 Load bearing test  ................................ ................................ ................................ ................................ ... 4 
8.5 Saw dust test  ................................ ................................ ................................ ................................ .........  4 
8.5.1  Specification of the saw dust  ................................ ................................ ................................ ...............  4 
8.5.2  Procedure  ................................ ................................ ................................ ................................ ...............  4 
8.6 Splash test  ................................ ................................ ................................ ................................ .............  5 
9 Sampling process and inspection  ................................ ................................ ................................ ....... 5 
9.1 Visual inspection  ................................ ................................ ................................ ................................ ... 5 
9.2 Dimensional, construction and performance tests  ................................ ................................ ...........  5 
10 Marking  ................................ ................................ ................................ ................................ ...................  6 
Bibliography  ................................ ................................ ................................ ................................ ........................  7 
 DEAS 1017 -2:2019  
iv © EAC 2019  – All rights res erved  
 Foreword  
Development of the East African Standards has been necessitated by the need for harmonizing requirements 
governing qual ity of products and services in the East African Community. It is envisaged that through 
harmonized standardization, trade barriers that are encountered when goods and services are exchanged 
within the Community will be removed.  
The Community has establis hed 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 an d 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 f or 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 fittings 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 -2:2019  
 
© EAC  2019  – All rights reserved  1 
 Sanitary appliances (Vitreous china)  — Specifications  — Part 2: Wash 
down water closets  
1 Scope   
This Draft East African standard c overs the requirements for  construction, dimensions and tolerances, finish 
and marking for vitreous wash down water closets . 
2 Normative references   
The following documents are referred to in the text in such a way that some or all of their content constit utes 
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.  
DEAS 1017 -1:2019 , Vitreous sanitary appliances — General req uirements  
EAS 355 , Toilet paper – Specification  
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 materials, manufacture, glazing, defects, minimum thickness, 
performance and methods of tests s hall conform to DEAS 1017 -1:2019 . 
5 Traps  
Pedestal pans shall have either a "P" trap or an "S" trap, as required, and wall -mounted pans shall have a "P" 
trap. The angle of the outlet shall be the relevant of the values for Ф given in figu re 1 or figure 2. 
The trap shall be large enough to allow a sphere of diameter 65 mm ± 1 mm to pass through it .  
2 © EAC 2019  – All rights res erved  
 
 
Type A pan (with seat fixing holes)   Section X - X (pan with straight "P" trap)  
Figure 1 — Type A (pedestal) water -closet pan  
Table 1 — Dimensions of t ype A (pedestal) water -closet pan  
 
 
Figure 2 — Type B (wall -mounted) water -closet pan   
© EAC 2019  – All rights reserved  3 
 Table 2 — Dimensions of t ype B (wall -mounted) water -closet pa n 
 
6 Dimensions  
The dimensions of pans shall conform to the values given in the relevant Figure 1 or Figure 2 . 
7 Construction  and finish  
7.1 Water closet shall be of one -piece construction. Each water closet shall be provided with not less than 
two floor fixing holes having a minimum diameter of 6.5 mm and shall have an integral flushing rim of suitable 
type. It shall also have an inlet or supply horn, for connecting the flushing pipe, of dimensions conforming to E 
in Table 2. The flushing rim may be box r im or open rim type. In case of box rim, adequate number of holes 
and slots shall be provided. The flushing rim and the inlet shall be of the self -draining type and a weep -hole 
shall be provided at the flushing inlet of the water closet.  
7.2 Each water clo set shall have an integral t rap with either S or P outlet . 
7.3 Where required, each water closet shall have anti -siphonage vent horn on the outlet side of the trap, 
with dimension conforming to those given in Figure 1 and on either right or left hand or ce ntre as specified at 
an angle of 45° (see Figure 1) and invert of vent hole not below the central line of the outlet.  
7.4 Water closets shall be supplied with appropriate connectors required to connect the outlet to the 
drainage system.  
7.5 The anti -siphon age vent where required shall be provided in the special connector . 
7.6 Inside surface of water closet and trap shall be uniform and smooth in order to ensure an efficient flush . 
8 Tests  
8.1 General  
The water closet shall satisfy the require ments of tests prescribed in 8.2, 8.3, 8.4, 8.5, 8.6, 8.7 and 8.8. These 
tests shall be conducted by connecting the water closet to a low level cistern. A cistern shall be fixed such that 
the height between the top of the water closet and the bottom of the cistern shall not be more than 300 mm 
and the water closet shall be connected to the cistern by 40 mm normal diameter flushing pipe. These tests 
shall be carried out by using the flushing cistern of the capacity with which the appliance is to be used.   
4 © EAC 2019  – All rights res erved  
 8.2 Flush tests  
8.2.1 Toilet paper test  
The water closet shall be filled with water to its normal water seal level and charged with six pieces of loosely 
crumpled  toilet paper conforming to EAS 355 . It shall then be flushed. This test shall be repeated four times 
and the pa n shall discharge the full charge of the paper at l east three out of four times.  
8.2.2 Smudge test  
The whole of the interior surface of water closet to 40 mm below the flushing rim shall be smudged with quartz 
powder of contrasting colour passing through 1 .18 mm sieve and shall then be flushed observing carefully the 
surface of the water closet during the flushing. Immediately after the flushing, there shall be no smudge left on 
the bowl.  
8.2.3  Ball test  
8.2.3.1  Single ball test  
The ball shall be made of no n-absorbent material. The relative density of the ball shall be between 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 n ormal manner.  
8.2.3.2  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 ball s 
should be flushed out in the five tests.  
8.3 Holding capacity test  
The water closet when sealed at the outlet and vent (if fitted) with water -tight seal shall be capable of holding 
not less than 10 l of water between the normal water level and the highes t possible water level of the water 
closet as installed . 
8.4 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 100 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.  
8.5 Saw dust t est 
8.5.1 Specific ation of the saw dust  
20 g of dry saw dust test sifted through 2 mm sieve  
8.5.2 Procedure  
Set up the water closet, cistern or flush valve and flush pipe (if required) as specified by the manufacturer. 
Charge the water closet with water to  its designed water seal level. Fully wet the entire internal surface of the 
water closet below the rim. Sprinkle 20 g of fine dry saw dust of above specification on the inside of the water 
closet between the normal water level and the flushing rim as comp letely and evenly as possible. Then flush 
the water clo set. The sprinkle saw dust shall  be cleaned below 40 mm of rim of water closet.   
© EAC 2019  – All rights reserved  5 
 8.6 Splash test  
Set up the water closet, cistern or flush valve and flush pipe (if required) as specified by the manufact urer. 
Charge the water closet 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 the discharge the 
water closet. Observe and reco rd whether flushing water splashed over rim onto the floor.  
Repeat the test 5 times. Record whether the flushing water splash over the rim onto the floor. Up to 10 
isolated droplets shall not be the cause for rejection.  
9 Sampling process  and inspection  
9.1 Visual inspection  
The number of water closets to be selected from a lot shall be in accordance with Table 3. While taking 
samples from the lot, approximately, equal number of water closets shall be randomly taken for each size so 
as to constitute the req uisite sample size. Each water closet in the sample shall be subjected to visual 
inspection. A water closet failing in one or more of these requirements shall be considered as defective.  
Table 3 — Scale of sampling and acceptance cr iteria  for finish and marking inspection  
Lot size  Sample 
size Permissible number of 
defective water closets  
≤25 8 0 
26-50 13 0 
51-90 20 1 
91-150 32 2 
151-280 50 3 
281-500 80 5 
501-1200  125 7 
The lot shall be considered as conforming to the visual requirements if the number of defectives found in the 
sample does not exceed the corresponding permissible num ber of defective water closets given in Table 3  
9.2 Dimensional, construction and performance tests  
The number of water closets shall be selected at random from a lot having been f ound satisfactory according 
to 9.1 in accordance with Table 4.  
Table 4 — Scale of sampling and acceptance criteria for dimensional , construction and performance 
tests  
Lot size  Sample size  Permissible number of 
defective water closets  
≤90 5 0 
91-150 8 0 
151-500 13 0 
501-1200  20 1 
The lot shall be considered as conforming to these requirements if the number of defectives do not exceed the 
permissible number of defective water closets given in Table 4.   
6 © EAC 2019  – All rights res erved  
 10 Marking  
Each piece of water c loset shall be legibly and indelibly marked at a suitable place with the following 
information:  
a) name or trade -mark of the manufacturer, and  
b) batch/lot number.   
© EAC 2019  – All rights reserved  7 
 Bibliography  
[1] IS 2556 -2:2004, Vitreous Sanitary Appliances (Vitreous China) — Part 2: Specific Requirements of 
Wash -down Water Closets  
[2] IS 9140:1996, Methods for sampling of vitreous and fire clay sanitary appliances  
[3] SANS 497:2011 , Glazed ceramic sanitary ware  
 DEAS 1017 -2:2019    
 
© EAC 2019  – All rights reserved