FINAL DRAFT UGANDA 
STANDARD  
  FDUS EAS 158
First Edition
2011-mm-dd
 
 Reference numbe r
FDUS EAS 158: 2011
© UNBS 2011
  
Motor gasolines, unleaded motor spirit premium — 
Specification 
 FDUS EAS 158: 2011 
i i                 ©  U N B S  2011 - 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 application  
© UNBS 2011 
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, in cluding 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 41 505 995 
Fax: 256 41 286 123 
E-mail: unbs@infocom.co.ug  
Web: www.unbs.go.ug  
 FDUS EAS 158: 2011 
© UNBS  2011 - All rights rese rved                iii National foreword 
Uganda National Bureau of Standards (UNBS) is a parastatal under the Ministry  of Tourism, Trade and 
Industry established under Cap 327, of the Laws of U ganda. 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 A limentarius Commission on Food Standards, and  
(c) the National Enquiry Point on TBT/SPS Agr eements 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 gi ven field or area and consists of representatives of 
consumers, traders, academician s, manufacturers, governme nt and other stakeholders. 
Draft Uganda Standards adopted by the Technical Committ ee 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. 
This Final Draft Uganda Standard, FDUS EAS 158: 2011 , Motor gasolines, unleaded motor spirit premium  — 
Specification, is identical with  and has been reproduced from an East African Standard, EAS 158: 2011 , Motor 
gasolines, unleaded motor spirit premium — Specification,  and is being proposed for adoption as a Uganda 
Standard.  
This standard was developed by the Petroleum Standards Technical Committee (UNBS/TC 16).  
Wherever the words, “East Africa Standard" appear, they should be replaced by "Uganda Standard."  EAS 158: 2011 
ICS 75.160.20  
© EAS 2011                                                                                                                         Second Edition 2011  
 
 
Motor gasolines, unleaded motor spirit premium — Specification  
 EAS 158:2011 
ii © EAC 2011 – All rights reserved
 Copyright notice 
This EAC document is copyright-protected by EA C. While the reproduction of this document by 
participants in the EAC standards development process is permitted without prior permission from EAC, 
neither this document nor any extract from it may be reproduced, stored or transmitted in any form for 
any other purpose without prior written permission from EAC. 
Requests for permission to reproduce this document for the purpose of selling it should be addressed 
as shown below or to EAC’s member bo dy in the country of the requester: 
© East African Community 2011 — All rights reserved 
East African Community  
P.O.Box 1096 
Arusha 
Tanzania 
Tel: 255 27 2504253/8 
Fax: 255 27 2504481/2504255 
E-mail: eac@eachq.org 
       Web: www.eac-quality.net 
Reproduction for sales purposes may be subject to royalty payments or a licensing agreement. 
Violators may be persecuted EAS 158:2011 
© EAC 2011 – All rights reserved  iii
 Contents Page 
Foreword ...................................................................................................................... ...................................... iv  
1  Scope ......................................................................................................................... ............................. 1  
2  Normative re ferences .......................................................................................................... .................. 1  
3  Terms and de finitions ......................................................................................................... .................. 2  
4  Sampling ...................................................................................................................... .......................... 3  
5  Pump marking ............................................................................................................................... ......... 3 
6  Requirements and test methods ................................................................................................. ......... 3 
6.1  Dyes and markers ............................................................................................................................... ... 3 
6.2  Additi ves ..................................................................................................................... ........................... 3  
6.3  Phosphorous ................................................................................................................... ...................... 4  
6.4  Oxygenates content ............................................................................................................ .................. 4  
6.5  Adulteration .................................................................................................................. ......................... 4  
6.6  Generally applicable requir ements and test methods ....................................................................... 4  
6.7  Volatility .................................................................................................................... .............................. 5  
7  Precision and dispute ......................................................................................................... .................. 6  
Annex A (normative)  Sampling of motor spir it premium ......................................................................... ..... 7 
A.1 Sampling from retail site pumps and commercial site fu el dispensers .......................................... 7  
A.2 Sample containers  and closures ................................................................................................ ......... 7 
A.2.1 Containers .................................................................................................................... .......................... 7  
A.2.2 Closures ...................................................................................................................... ........................... 7  
A.3 Safety requi rements ........................................................................................................... ................... 7  
A.4 Sampling pr ocedure ............................................................................................................ .................. 8  
A.5 Appointed orga nisations ....................................................................................................... ............... 9  
A.6 Sampling from st orage tanks ................................................................................................... ............ 9 
Annex B (normative)  Nozzle extensions for sampling petrol and their use .............................................. 10  
B.1 General ....................................................................................................................... .......................... 10  
B.2 Extension pieces .............................................................................................................. ................... 10  
B.3 Procedure ..................................................................................................................... ........................ 10  
Annex C (informative)  Sampling statement ..................................................................................... ............. 13  
 EAS 158:2011 
iv © EAC 2011 – All rights reserved
 Foreword 
Development of the East 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 goods and services are exchanged 
within the Community will be removed.  
In order to achieve this objectiv e, the Community established an East  African Standards Committee mandated 
to develop and issue East African Standards.   
The Committee is composed of representatives of the National Standards Bodies in Partner States, together 
with the representatives from the pr ivate sectors and consumer organizati ons. 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 procedures 
of the Community. 
East African Standards are subject to review, to keep pace with technological advan ces. Users of the East 
African Standards are therefore expected to ensure that they always have the latest versions of the standards 
they are implementing .  
This second edition cancels and replaces the first editi on (EAS 158:2000), which has be en technically revised. 
 
 EAST AFRICAN STANDARD EAS 158:2011
 
© EAC 2011 – All rights reserved 1
 Motor gasolines, unleaded motor spirit premium — Specification  
1 Scope 
This East African Standard specifies requirements and methods of test for unleaded motor gasoline of 
premium grade, (Motor Spirit Premium,MSP).  
This standard applies to unleaded motor spirit premium,  also commonly known as petrol, for use in spark 
ignition engines, including those equipped with devices to reduce emitted pollutants. The standard applies to  
unleaded MSP as manufactured, stored, transported and marketed. All requirements apply to premium grade motor gasoline and do not apply to aviation gasolines. 
2 Normative references 
This East African Standard incorporates by dated or undated reference, provisions from other publications. 
These normative references are cited at the appropriate places in the text and the publications are listed 
hereafter. For dated references, subsequent amendments to or  revisions of any of these publications apply to 
this East African Standard only when incorporated in it by amendment or revision. For undated references the 
latest edition of the publication referred to applies. 
ASTM D3237, Standard test for lead in gasoline by Atomic Absorption Spectroscopy   
ASTM D2622, Standard test method for sulphur in petroleum products by wave dispersive x- ray fluorescence 
spectrometry 
ASTM D4815, Standard method for determination of MTBE, ETBE,  TAME, DIPE, Tertiary amyl alcohol and 
C1 to C4 alcohols in gasoline by gas chromatography  
ASTM D5443, Standard test method for paraffin, Naphthene a nd aromatic hydrocarbon type analysis in 
petroleum distillates through 200 ºC by multi- dimensional gas chromatography 
ASTM D5580, Standard test method for determination of benzene,  toluene, ethylbenzene, p/m- xylene, o- 
xylene, C 9 and heavier aromatics and total aromatics in finished gasoline by gas chromatography  
ASTM D5599, Standard test method for determination of oxygenates in gasoline by gas chromatography and 
oxygen selective flame ionization detection ISO 2160,  Petroleum products — Corrosiveness to copper — Copper strip test 
ISO 3170, Petroleum liquids — Manual sampling 
ISO 3171,  Petroleum liquids — Automatic pipeline sampling 
ISO 3405,  Petroleum products — Determination of dist illation characteristics at  atmospheric pressure  
ISO 3675,  Crude petroleum and liquid petroleum products — Laboratory determination of density — 
Hydrometer method ISO 4259,  Petroleum products — Determination and application of precision data in relation to methods of test EAS 158:2011 
2 © EAC 2011 – All rights reserved
 ISO 5163, Petroleum products — Determination of knock ch aracteristics of motor and aviation fuels — Motor 
method 
ISO 5164,  Petroleum products — Determination of knock c haracteristics of motor f uels — Research method 
ISO 6246,  Petroleum products — Gum content of light and middle distillate fuels — Jet evaporation method 
ISO 7536,  Gasoline — Determination of oxidation stability of gasoli ne — Induction period method 
ISO 12185,  Crude petroleum and petroleum products — Determination of density — Oscillating U-tube 
method 
ISO 20846,  Petroleum products — Determination of sulfur  content of automotive fuels — Ultraviolet 
fluorescence method ISO 20847, Petroleum products — Determination of sulfur c ontent of automotive fuels — Energy-dispersive X-
ray fluorescence spectrometry 
ISO 20884,  Petroleum products — Determination of sulfur  content of automotive fuels — Wavelength-
dispersive X-ray fluorescence spectrometry 
ASTM D 1613,  Standard test method for acidity in volatile solv ents and chemical intermediates used in paint, 
varnish, lacquer, and related products ASTM D 323,  Standard test method for vapour pressure of petroleum products (Reid Method) 
3 Terms and definitions 
For the purposes of this standard, the terms and de finitions given in ISO 1998 and the following apply. 
3.1 
additive 
material added to another, usually in small amounts, to impart or enhance desirable properties or to suppress undesirable properties 
3.2 
marketable 
acceptable smell for safe handling 
3.3 
motor gasoline (Gasoline US, Petrol GB) 
Gasoline with or without additives, notably antiknock age nts and inhibitors, for use as a fuel in automobile, 
stationary or other spark- ignition engines, except aircraft engines  
3.4 
marker (tentative definition) colourless chemicals added to petroleum based products to protect them against theft and to also distinguish 
between different fuels. They can be detected by either adding a specific reagent to produce a measurable 
colour or by placing a sample of fuel into a portable spectrophotometer to obtain a quantitative result in the 
field. 
3.5 
dye  chemicals majorly added to fuel for tax purposes, marketing and branding 
3.6 
ullage empty capacity left in a fixed volume samp le receiver/container above the liquid surface EAS 158:2011 
© EAC 2011 – All rights reserved  3
 4 Sampling 
Samples shall be taken as described in ISO 3170 or IS O 3171 and/or in accordance with the requirements of 
legal metrology regulations for the sampling of unleaded petrol.  
In view of the sensitivity of some of the test methods re ferred to in this standard, particular attention shall be 
paid to compliance with any guidance on sampling containers, which is included in the test method standard. 
It is essential that for sampling of unleaded petrol the containers used to take and store the samples before 
testing are not contaminated with lead and/or sulfur. 
Guidelines for sampling MSP from retail and commercial site fuel dispensers have been included under Annex 
A. 
5 Pump marking 
Information to be marked on dispensing pumps used for delivering unleaded petrol, and the dimensions of the 
mark shall be in accordance with the requirements of the relevant weights and measures regulations for each 
member state for the marking of pumps for unleaded petrol.  
6 Requirements and test methods 
6.1 Dyes and markers 
The use of dyes and markers is permitted. The dye content shall be reported and shall not exceed 1.3 mg/m3.  
6.2 Additives 
In order to improve the performance quality, the use of  additives is permitted. Fuel additives without known 
harmful side effects are recommended in the appropriate amount, to help avoid deterioration of drive ability 
and emissions control durability. Other technical mean s with equivalent effect may be used.  It should 
however be noted that the additive used shall serve the purpose for which it is intended and, shall not deter 
any parameters of MSP out of the specified rang es as indicated under Table 1 and Table 2. EAS 158:2011 
4 © EAC 2011 – All rights reserved
 Table 1 — Distillation 
% Evaporated Temperature, 
ºC 
15 - 36 70 
10 Max. 71 
36 - 58 100 
75 - 90 140 
Initial boiling point 32 - 39 
Final boiling point 175 - 205 
 
6.3 Phosphorous 
In order to protect automotive catalyst systems, ph osphorus-containing compounds shall not be included in 
motor gasolines. 
6.4 Oxygenates content 
The unleaded petrol shall not contain oxygenated compou nds.  Persons handling the manufacture, storage, 
transportation, marketing and importation of the petrol shall make a declaration to this effect. 
6.5 Adulteration 
The motor gasolines shall not be adulterated with other petroleum products such as kerosene and diesel. This 
shall be determined through distillation (ISO 3405) as well as relevant methods listed under table 2 and other 
methods that may be deemed appropriate by the regulatory bodies. 
6.6 Generally applicable requirements and test methods 
When tested in accordance with the test methods indi cated in Table 2, premium grade motor gasolines shall 
conform to the limits specified in Table 2.   EAS 158:2011 
© EAC 2011 – All rights reserved  5
  
Table 2 — Generally applicable requirements and test methods for premium grade motor gasolines 
Property Units Requirement Test method 
 Min. Max. 
Research octane number, 
RON – 91 – ISO 5164 
ASTM D2699 
Motor octane number, MON – 81 – ISO 5163 
ASTM D2700 
Lead content g/L –  
0.013 ASTM D3237  
Benzene content % v/v – 5.0 ASTM D 5580 
Density (at 15 ºC) 
 kg/m3 0.720 780 
 ISO 3675 ASTM D4052 ASTM D1298  
Sulphur content % m/m – 0.15 ISO 8754 
ASTM D2622 
Oxidation stability Minutes 360 – ISO 7536 
ASTM D525 
Existent gum content 
(solvent washed) mg/100 
mL – 5 ASTM D381 
Copper strip corrosion  
(3 h at 50 ºC) Rating – No. 1 strip ISO 2160 
ASTM D130 
Appearance  Clear and bright Visual inspection 
Doctor test* - To be reported ASTM D4952 
Mercaptan sulphur  % m/m  0.002 ASTM D3227 
Colour – Red or Orange Visual inspection 
Dye content mg/m3  1.3 – 
Odour   Marketable – 
Oxygenates – NIL ASTM D 5580, ASTM D 4815 
RVP - To be reported - 
Volatility (see Clause6.8) – –  – 
Water Content  nil  
* If negative, there is no need to carry out Mercaptan sulphur test. 
 
6.7 Volatility 
For both premium and regular motor gasolines, 
FVI = RVP +  0.7 E70 = 93 (RVP + 0.1 E70) = (13.5) 
where EAS 158:2011 
6 © EAC 2011 – All rights reserved
 FVI   is fuel vapour index; 
RVP is Reid vapour pressure determined as per ASTM D323; and  
E70 is fraction evaporated at 70 °C. 
7 Precision and dispute 
7.7.1 All test methods referred to in this East Afric an Standard include a precision statement. In cases of 
dispute, the procedures for resolv ing the dispute and interpretation of the results based on test method 
precision, described in ISO 4259, shall be used. 
7.7.2 In cases of dispute 
• concerning sulphur, ISO 20847 is unsuitable as an arbitration method  
• concerning benzene content, ASTM D 5443 shall be used. 
• concerning oxygen and oxygenates content, ASTM D 4815shall be used. 
• concerning density, ISO 3675 shall be used.  
  EAS 158:2011 
© EAC 2011 – All rights reserved  7
 Annex A 
(normative) 
 
Sampling of motor spirit premium 
A.1 Sampling from retail site pumps and commercial site fuel dispensers 
This clause specifies a procedure for dr awing, from fuel dispensers, samples of  petrol to be used for the assessment of 
motor gasoline quality in accordance with EN 14274. This standard does not cover the sampling of Liquefied Petroleum 
Gas (LPG).  
NOTE When petrol is sampled, it is recommended that the pre-treatment of the sample containers and their transportation be set 
out as in the NOTE in Clause A.4.  
WARNING: The use of this standard may involve hazardous mate rials, operations and equipment. This standard does 
not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standar d 
to establish appropriate safety  and health practices and determi ne the applicability of regulato ry limitations prior to use.  
A.2 Sample containers and closures 
A.2.1 Containers 
These shall be unused metallic containers of approximately one litre capacity, constr ucted from lead-free material, with 
packing glands or welded joints, able to withstand normal in ternal pressures encountered during normal operations. The 
containers shall be equipped with an exte rnal fitting to enable them to be seal ed. The container shall not have been 
treated with a petroleum-based rust-preventative.   
NOTE Lead solder may be used for the attachment of external fittings.  
A.2.2 Closures 
These shall be able to retain the integrity of the sample. Insert disks may additionally be used to close the container outlet.  
Suitable closures include screw caps fitted with a washer resi stant to the product being sampled. Cork or rubber washers 
shall not be used.  
A.3 Safety requirements 
A.3.1  The following minimum safety requirements shall be read in  conjunction with the requirements for safety as given 
in ISO 3170 and, in addition, any national or local sa fety, environmental and transportation regulations.  
A.3.2  Personnel drawing the samples shall be made aware of  the potential hazards and be given instructions in safety 
precautions to be observed.  
A.3.3  Care shall be taken to avoid breathing petroleum vapour s during the sampling. Protec tive gloves of hydrocarbon-
insoluble materials, eye, nose and mouth protection and clothing suitable to provi de protection against all known hazards 
associated with the product shall be worn.  
A.3.4  In order to avoid static electricity risks, special precautions shall be taken during the sampling operation.  
A.3.4.1  Sampling shall not be carried out dur ing periods of atmospheric electr ical disturbance or thunderstorms.  EAS 158:2011 
8 © EAC 2011 – All rights reserved
 A.3.4.2  Foot wear and/or clothing capable of causing sparks shall not be worn in areas where flammable vapours 
are likely to be present.  
A.3.4.3 In order to earth any static charge on their person, the person taking the samples shall touch some part of 
the fuel dispensing structure immediately before carrying out any sampling operation.  
A.3.5  Samples shall not be taken during the supplying of t he tank to which the pump to be sampled is connected. 
A.3.6  Petrol samples shall be clearly labelled.  
A.3.7  Samples shall be transported in accordance with natio nal or local regulations regarding the transport of 
flammable products.  
NOTE When transporting samples of petrol it is recommended that they be placed in an insulated box containing a cooling 
medium such as solid carbon dioxide or ice. (See NOTE in Clause A.4)  
A.3.8  Samples shall be stored in accordance with national and local regulations.  
NOTE When storing samples that have flash points below  ambient temperature consideration should be given to  
storing them in a flameproof refrigerator.  
A.4 Sampling procedure 
NOTE In order to minimise loss of light ends when sampling pe trol, the following procedure is recommended. Cool the sample 
containers in a refrigerator and place them in an insulated box containing a cooling medium such as solid carbon dioxide or ice . 
Transport them to the sampling si te in the insulated box. After filling, sealing and labelling immediatel y return the filled sa mple 
containers to the insulated box and transport them to the labora tory. A suitable insulated box consists of a strong wooden box lined with 
expanded polystyrene or polyurethane sheeting of approximately 50 mm thickness.  
A.4.1  Using a cotton cloth carefully clean the parts of the delivery pipe nozzle that may come into contact 
with the sample container and/or the product being sampled. 
A.4.2  Prior to drawing the samples, run at least four lit res of the product through the nozzle into a suitable 
container. 
NOTE This may be either a plastic or metal cont ainer approved for use with the product being sampled. 
Plastics containers shall not be used for long-term sample stor age unless it has been demonstrated that the plastic is 
suitable (that is, compatible with the sample) so that the inte grity of the sample is not comp romised. The use of containers 
made of non-linear polyethylene may lead to sample contamination and/or sample 
The flushings shall either be re moved from the site in the container and di sposed of in a safe manner, or returned to 
storage on the site.  
A.4.3  Inspect the sample container (see A.2.1) for cleanline ss and line up the required number of containers alongside 
the fuel dispenser to be sampled.  
A.4.4  Record the reading on the outlet meter display.  
A.4.5 Insert the nozzle of the outlet into the sample c ontainer (see NOTE). Acti vate the filling mechanism 
and run the product into the container in such a way as  to prevent splashing, minimise foaming and light end 
loss and at such a rate to enable air to exhaust from t he container without product issuing from the container. 
NOTE In order to further minimise light end loss, it is recommended that when taking samples of petrol an extension 
piece is fitted to the nozzle to enable submerged filling of t he container. A description of suitable nozzle extensions and 
their use is given in Annex B. 
A.4.6 Fill the container with a maximum of  1.0 L of product, using the outlet meter display as a guide (leave 
a minimum of 5 % ullage in the container to allow for expansion). EAS 158:2011 
© EAC 2011 – All rights reserved  9
 A.4.7 Immediately after filling, close the container usi ng an appropriate closure (see A.2.2). Check for leaks 
by inverting the container and holding in an inverted position for 30 s. If a leak is observed replace with a new 
closure and recheck for leaks. If the leaking continues dispose of the cont ainer and its contents in accordance 
with local regulations. Resample using a new container and closure. 
A.4.8 Clearly label the sample container with the following information. 
• place, date and time of sampling; 
• product and its grade; 
• sample identification code. 
NOTE This is the minimum information required and other information can also be included as required. 
A.4.9 Seal the sample container in such a manner that the closure and sample label cannot be removed 
without breaking the seal. 
A.4.10 Repeat A.4.3 to A.4.9 as many times as ne cessary to comply with any additional national 
requirements. 
A.4.11 Complete a sampling statement in duplicate. 
One copy of the sampling statement shall accompany the analysis sample, the other shall be given to the site 
representative. 
NOTE An example of a suitable samp ling statement is given in Annex C. 
A.5 Appointed organisations 
A.5.1 Organisations carrying out the sampling operation  shall be accredited with US ISO 17020 or 
appointed by a Government Body. A.5.2 A list of organisations qualified to draw samples shall be compiled and maintained by the national 
standardization body of the Partner State or its nominated alternate. 
A.6 Sampling from storage tanks 
Sampling from storage tanks or the purposes of this standard, all sampling shall be carried out in accordance 
with the relevant procedures of ISO 3170 and ISO 3170. EAS 158:2011 
10 © EAC 2011 – All rights reserved
 Annex B 
(normative) 
 
Nozzle extensions for sampling petrol and their use 
B.1 General 
The preferred method of sampling volatile products, such as petrol, into an open-top container is by 
submerged filling. However, the normal nozzles, are not of sufficient length to reach the bottom of a sample 
container. In addition, to prevent overf illing, fuel dispenser nozzles are fitted with cut-off devices that will stop 
the supply of fuel when the end of the nozzle is immersed in a liquid. (The cutting-off of the airflow into the 
sensing port activates the sa fety cut-off device.) Theref ore to enable submerged filling an extension piece, of 
sufficient length to reach the bottom of the sample container and allow air to flow into the sensor port of the 
cut-off safety device, is used. 
B.2 Extension pieces 
To meet with the principles of B.1 the extension piece can either be: 
a) Fitted with an air pipe that will allow air to flow into the sensing port or,  
b) Loosely fitting, allowing air to flow down the gap between the nozzle and the extension piece and into 
the sensing port. 
The extension pieces are made of a conducting material to  prevent the build-up of static electricity and for this 
copper piping has been found to be suitable. 
The diameter of the nozzle extensi on will depend on the type of nozzle fixed to the fuel outlet and its other 
dimensions will depend on the depth of the sample container to be filled. 
A 'V-shaped' opening is cut in the base of the extension piece to allow the free flow of petrol when it is resting 
on the bottom of the sample container, see Figure B.1. 
Two examples of suitable designs for extension piec es are shown in Figure B.1. Figure B.2 shows an 
assembly for sampling using a nozzle extension. 
B.3 Procedure 
Check that the extension piece is clean and flush with product in accordance with A.4.2. After following the 
procedure up to A.4.4, place the extension piece into the sample container in an upright position. Insert the nozzle into the extension piece. If the 'air pipe' type is used, ensure that the air pipe is engaged into the sensing port. 
Activate the 
filling mechanism. 
If a loosely fitting extension piece is used, keep the flow rate to a minimum in order to prevent petrol issuing from 
around the nozzle due to turbulent flow. 
Since the safety cut-off device has been deactivated, take great care not to overfill the container. After filling the 
sample container with a maximum of 0.75 L, proceed in accordance with A.4.7. EAS 158:2011 
© EAC 2011 – All rights reserved  11
 
 
 
a) Nozzle fitted with extension piece with air pipe   b) Nozzle fitted with extension piece without air pipe 
Key 
A    Nozzle  
B     Extension piece  
C    Safety cut-off sensing port  
D    Air flow to safety cut-off sensing port  
Figure B.1 — Examples of suitable designs for extension pieces 
 EAS 158:2011 
12 © EAC 2011 – All rights reserved
 
 
 
Figure B.2 — Assembly for sampling wi th a loose fitting nozzle extension EAS 158:2011 
© EAC 2011 – All rights reserved  13
 Annex C 
(informative) 
 
Sampling statement 
 
 Samples have been drawn in accordance with EAS 158 
 
 
The undersigned: (Surname, forename, title, complete address and, where applicable: identity card or 
department card number) 
 
 
  
 
 
Representative of: (Company/body, complete address) 
 
 
 
 
 
 
Representative of: (Company/body, complete address) 
 
 
 
 
 
 EAS 158:2011 
14 © EAC 2011 – All rights reserved
 Responsible for and authorized to: (Company, body, complete address) 
 
 
 
 
 
The undersigned has taken samples in the following outlet pump(s): (Brand, other identification data: such as 
station number, name, complete address)  
 
 
Operated by: (Surname, forename, complete address)  
 
 
 
 
 
Acting as 1)) : (Service Station licensee / employee / manager / pump attendant)  
                                                      
1) If samples have been drawn from an unmanned 'autom atic service station'  this will not apply.  EAS 158:2011 
© EAC 2011 – All rights reserved  15
  
Pump 
Identification  
 Type and quality of the 
supplied product  
 Sample 
volume  
 Sample Identification Code 2) 
(to be stated on the container label)  
    
    
    
    
    
    
    
    
    
    
    
    
 
Comments: ………………………………………………………………………………………………………..  
 
……………………………………………………………………………………………………….. 
 
……………………………………………………………………………………………………….. 
 
……………………………………………………………………………………………………….. 
 
Name and signature of the person drawing the samples:  
 
                                                      
2) The Sample Identification Code should consist of:  
year/month/day/ and a unique ident ification number for the sample (for example 2007/02/28/xxxxxxx/03)  
The company or department responsible fo r the sampling operation provides the uni que identification number for the sample.  EAS 158:2011 
16 © EAC 2011 – All rights reserved
  
 
Date:  
 
 
Name and signature of the m anager of the service station3): 
. 
                                                      
 
3) If samples have been drawn from an unmanned 'automat ic service station' this will not apply. 
 EAS 158:2011
 
© EAC 2011 – All rights reserved