FINAL DRAFT UGANDA 
STANDARD  
  FDUS EAS 772
First Edition
2012-mm-dd
 
 Reference numbe r
FDUS EAS 772: 2012
© UNBS 2012
  
Dried sweetpotato chips — Specification 
 FDUS EAS 772: 2012 
i i                 ©  U N B S  2012 - 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 2012 
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 772: 2012 
© UNBS  2012 - 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 772: 2012 , Dried sweetpotato chips  — Specification, is 
identical with  and has been reproduced from an Ea st African Standard, EAS 772: 2012 , Dried sweetpotato 
chips — Specification,  and is being proposed for adoption as a Uganda Standard.  
This standard was developed by Food and agriculture Standards Technical Committee (UNBS/TC 2).  
Wherever the words, “East African Standard" appea r, they should be replaced by "Uganda Standard." 
 
 
   EAS 772:2012
ICS 67.080.20
 
© EAC 2012               First Edition 2012  
 
EAST AFRICAN STANDARD 
 
Dried sweetpotato chips — Specification 
 
     
 
               
EAST AFRICAN COMMUNITY EAS 772:2012 9 
 
© EAC 2012 – All rights reserved               ii 
 Foreword 
 
Development of the East African Standards has been necessitated by the need for harmonizing requirements 
governing quality of products and services in East Africa. It is envisaged that through harmonized 
standardization, trade barriers which are encountered when goods and services are exchanged within the 
Community will be removed.   
In order to meet the above objectives, the EAC Partner  States have enacted an East African Standardization, 
Quality Assurance, Metrology and Test Act, 2006 (EAC SQMT Act, 2006) to make provisions for ensuring 
standardization, quality assurance, metrology and testing of  products produced or originating in a third country 
and traded in the Community in order to facilitate industrial development and trade as well as helping to 
protect the health and safety of societ y and the environment in the Community. 
 
East African Standards are formulated  in accordance with the procedures established by the East African 
Standards Committee. The East African Standards Committe e is established under the provisions of Article 4 
of the EAC SQMT Act, 2006. The Committee is compos ed of representatives of the National Standards 
Bodies in Partner States, together with the repr esentatives from the priv ate sectors and consumer 
organizations. Draft East African Standards are circul ated 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 t he procedures of the Community.  
 
Article 15(1) of the EAC SQMT Act, 2006 provides that “Wit hin six months of the declar ation of an East African 
Standard, the Partner States shall adopt, without deviation from the approved text of the standard, the East 
African Standard as a national standard and withdraw any existing national standard with similar scope and 
purpose”.  East African Standards are subject to review, to keep pace with technological advances. Users of the East 
African Standards are therefor e expected to ensure that they always hav e the latest versions of the standards 
they are implementing.   
© East African Community 2012 — 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.each.int 
                                                      
* © 2012 EAC — All rights of exploitation in any form and by an y means reserved worldwide for EAC Partner States’ NSBs.  
 EAS 772:2012 
© EAC 2012 – All rights reserved                 iii 
 Acknowledgement 
This standard was devel oped with support from the Policy Analysi s and Advocacy Programme (PAAP) of the 
Association for Strengthening Agricult ural Research in Eastern and Cent ral Africa (ASARECA). This was 
possible though a grant by the United States Agency for International Development (USAID). This support 
was used in the process of formulation and mobilization of stakeholders to review the standard in national and 
regional fora. This support is hereby acknowledged. EAST AFRICAN STANDARD EAS 772:2012
 
1               © EAC 2012 – All rights reserved 
 Dried sweetpotato chips — Specification 
1 Scope 
This East African Standard specifies the requirements and methods of sampling and test for dried 
sweetpotato chips intended for human consumption. 
2 Normative references 
The following referenced documents are indispensable for the application 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. 
EAS 38,  General standard for the labelling of pre-packaged foods  
EAS 39, Hygiene in the food and drink manufacturing industry – Code of practice for  
EAS 82, Milled cereal products – Methods of test 
EAS 103, Schedule for permitted food additives 
EAS 771 , Fresh sweetpotatoes – Specification 
CODEX STAN 193, Codex general standard for contaminants and toxins in food and feed 
ISO 712, Cereals and cereal products — Determination of moisture content — Routine reference 
method  
ISO 2171,  Cereals, pulses, and derived products — Determination of total ash 
ISO 5498, Agricultural food products — Determination of Crude Fibre Content — Modified Scharrer 
Method  
ISO 6579, Microbiology of food and animal feeding stuffs  — Horizontal method for the detection of 
Salmonella spp.  
ISO 7251,  Microbiology of food and animal feeding stuffs  — Horizontal method for the detection and 
enumeration of presumptive Escherichia coli — Most probable number technique 
ISO 21527-2, Microbiology of food and animal feeding stuffs — Horizontal method  for the 
enumeration of yeasts and moulds — Part 2: Colony count technique in products with  water activity 
less than or equal to 0.95 
 ISO 24333, Cereals and cereal products — Sampling   
3 Terms and definitions 
For the purpose of this standard, the fo llowing terms and definitions shall apply. EAS 772:2012 9 
3.1  
dried sweetpotato chips 
pieces of sweetpotatoes obtained by slicing or chipping peeled sw eetpotatoes followed by  drying 
them with or without additional processing 
3.2 
food grade material materials that are free from substances that are hazardous to human health 
3.3 
foreign matter organic and inorganic materials (such as sand, soil, glass) other than extraneous matter in the dried 
chips 
 
3.4 
extraneous matter 
organic matter of sweetpotato origin other than dried sweetpotato chips  
 
4 Essential quality and composition requirements 
4.1 Raw materials 
The raw material shall be Fres h sweetpotatoes that comply wi th the requirements of EAS 771. 
The fresh sweetpotatoes from which the dried sweetpotato chips are prepared shall be of the 
following conditions in addition to the requirements specified in EAS 771: 
a) mature;  b) free from diseases and pests; 
c) not highly fibrous; and 
d) not spongy. 
4.2 Finished product  
Dried sweetpotato chips shall be safe and suitable for human consumption and shall conform to the 
following requirements:  
a) The taste and odour of dried sweetpotato chips shall be typical of the product; 
b) The colour of the chips shall be characteristic of the variety; 
c) Dried sweetpotato chips shall be free from extraneous and foreign matter; and 
d) The dried sweetpotato ch ips shall not be mouldy. 
4.3 Composition requirements for dried sweetpotato chips 
Dried sweetpotato chips shall conform to the comp ositional requirements in Table 1         
                    Table 1 — Co mpositional requirements for dried sweetpotato chips 
S/N Parameter Requirement Method of test 
1 Moisture content, by mass, %, max. 12.0  ISO 712 
 
© EAC 2012 – All rights reserved               2 
 EAS 772:2012 
2 Total ash on dry matter basis %, max. 3.0 ISO 2171 
3 Acid insoluble ash, on dry ma tter basis, %, max. 0.15 EAS 82 
4 Crude fibre on dry matter basis %, max. 2.0 ISO 5498 
5 Food additives 
Food additives may be used in th e preparation of dried sweetpotat o chips in accordance with EAS 
103. 
6 Contaminants 
6.1 Pesticide residues  
Dried sweetpotato chips shall conform to those maxi mum residue limits for pesticides established by 
the Codex Alimentarius Commission for this product. 
6.2 Other contaminants  
Dried sweetpotato chips shall conform to those maximum levels of the Codex General Standard for 
Contaminants and Toxins in Food and Feed (CODEX STAN 193). 
7 Hygiene 
7.1 The product covered by the provisions of th is standard shall be proc essed, packaged, stored 
and transported under hygienic conditions conforming to EAS 39. 
7.2 Dried sweetpotato chips shall conform to the requirements for microbiological limits in Table 2. 
Table 2 — Microbiological limits for dried sweetpotato chips 
S/N Micro organisms Requirement Method of test 
1 Escherichia coli  cfu/g, max.  <1 ISO 7251 
2 Salmonella , 25 g, max. absent ISO 6579 
3 Yeasts and moulds, cfu/g, max. 104 ISO 21527-2 
8 Packaging 
Dried sweetpotato chips shall be packaged in food grade materials that will safeguard the hygienic, nutritional and organoleptic qualities of the product. 
9 Weights and measures 
Dried sweetpotato chips shall be packaged in accordance with the weights and measures 
requirements in the destination country. 
© EAC 2012 – All rights reserved               3 
 EAS 772:2012 9 
 
© EAC 2012 – All rights reserved               4 
 10 Labelling  
10.1  In addition to the requirements of EAS 38, the following specific requirements shall apply and 
shall be legibly  and indelibly marked:  
a) name of the product to be shown on the label shall be “dried sweetpotato chips”;  
b) name and location address of the manuf acturer or packer shall be declared; 
c) country of origin of the product;  
d) lot identification (batch number); 
e) net weight in metric units; 
f) expiry date; 
g) date of manufacture; 
h) the words "Human food”; i) storage conditions such “store in cool  dry place"; away from contaminants; and 
j) Declaration stating “s alted” or “unsalted”.  
10.2  When labelling non-retail packages, information for non-retail packages shall either be given 
on the packages or in accompanying documents,  except that the name of the product, lot 
identification and the name and address of the manufacturer or packer shall appear on the package. 
11 Sampling 
Sampling of dried sweetpotato chips shall be done in accordance with ISO 24333. 
12 Criteria for conformity  
A lot shall be declared as conforming to this standard if samples inspected or analysed for quality 
requirements conform to the provisions of this standard. EAS 772:2012
  
© EAC 2012 — All rights reserved