UGANDA STANDARD  
  DUS 2080  
First  Edition  
2019 -mm-dd 
 
 
 Reference number  
US 2080: 2019  
© UNBS 2019   
 
Millitary Combat  Helmet s — Specification  
 US 2080 : 2019  
ii © UNBS 2019  – 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 a pplication  
© UNBS 2019   
All rights reserve d. Unless otherwise specified, no part of this publication may be reproduced or utilised in any form or by any means, electro nic or 
mechanical, including photocopying and microfilm, without prior written permission from UNBS.  
Requests for permission to rep roduce 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  US 2080:2019  
© UNBS 2019  – All rights reserved  iii 
 Contents  Page  
Foreword  iv 
Introduction  ................................ ................................ ................................ ................................ ................................ ...........  Error! Bookmark not defined.  
1 Scope  ................................ ................................ ................................ ................................ ................................ ................................ ...............  1 
2 Conformance  ................................ ................................ ................................ ................................ .......................  Error! Bookmark not defined.  
3 Normative references  ................................ ................................ ................................ ................................ ................................ .....................  1 
4 Terms and definitions ................................ ................................ ................................ ................................ ................................ .....................  2 
5 Symbols (and a bbreviated terms)  ................................ ................................ ................................ ................................ ................................ . 4 
6 Clause  ................................ ................................ ................................ ................................ ................................ ................................ ..............  7 
6.1 Subclause (level  1)................................ ................................ ................................ ................................ ................................ ..........................  8 
6.1.1  Subclause (level  2)................................ ................................ ................................ ................................ ................................ ..........................  8 
6.1.2  Subclause (level  2)................................ ................................ ................................ ................................ ..............  Error! Bookmark not defined.  
6.2 Subclause (level  1)................................ ................................ ................................ ................................ ..............  Error! Bookmark not defined.  
7 Clause  ................................ ................................ ................................ ................................ ................................ .. Error! Bookmark not defined.  
8 Special  ................................ ................................ ................................ ................................ ................................ . Error! Bookmark not defined.  
Annex  A (normative)   Annex title  ................................ ................................ ................................ ................................ .........  Error! Bookmark not defined.  
A.1 General  ................................ ................................ ................................ ................................ ................................ . Error! Bookmark  not defined.  
A.2 Clause  ................................ ................................ ................................ ................................ ................................ .. Error! Bookmark not defined.  
A.2.1  Subclause (level  1)................................ ................................ ................................ ................................ ..............  Error! Bookmark not defined.  
A.2.2  Subclause (level  1)................................ ................................ ................................ ................................ ..............  Error! Bookmark not defined.  
A.3 Clause  ................................ ................................ ................................ ................................ ................................ .. Error! Bookmark not defined.  
Annex  B (informative)   Which  styles correspond to which element  — Quick reference guide  ................................ ..... Error! Bookmark not defined.  
Bibliography  ................................ ................................ ................................ ................................ ................................ ................................ ....................  10 
 
The table of contents  is an optional preliminary element, but is necessary if it makes the document easier to consult. The table of contents shall be 
entitled “Contents” and shall list clau ses and, if appropriate, subclauses with titles, annexes together with their status in parentheses, the 
bibliography, indexes, figures and tables. The order shall be as follows: clauses and subclauses with titles; annexes (includ ing clauses and 
subclauses with titles if appropriate); the bibliography; indexes; figures; tables. All the elements listed shall be cited with their fu ll titles. Terms in the 
“Terms and definitions” clause shall not be listed in the table of contents.  
The table of contents shall be  inserted for a document of 15 or more pages.  US 2080 : 2019  
iv © UNBS 2019  – All rights reserved  
 Foreword  
Uganda National Bureau of Standards (UNBS) is a parastatal under the Ministry of Trade , Industry and Cooperatives established 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 d eliberate 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 co mments . The 
committee reviews the comments before recommending the draft standards for approval and declaration as Uganda Standards by th e National 
Standards Council.  
The committee responsible for this document is Technical Committee UNBS /TC8, Transport and Comm unication . 
US 2080  consists of the following parts, under the general title Introductory element — Main element :  
  Part n: Part title  
  Part [n+1]: Part title  
  Part [n+2]: Part title  
  US 2080:2019  
© UNBS 2019  – All rights reserved  v 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 UGANDA STANDARD  DUS 2080  
 
© UNBS 2019 – All rights reserved  1 
 Military combat Helmets  — Specification s  
1 Scope  
This standard covers performance requirements , materials, design and construction, workmanship, mass  and methods of test for  military combat  
helmets intended to protect the wearer from the damaging effects of bullets of small arms ammunition, fragments, and cold weapons .  
Terms and classification of military combat  helmets established by this standard are obligatory for use in all types of documentation and 
literature included in the scope of work on standar dization or using the results of these works . 
 
2 Normative references   
The following referenced documents 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 (including any 
amendments) applies.  
US ab-c:199x, General title of series of parts  — Part c: Title of part  
US xyz (all parts), General title of the series of parts   
2 © UNBS 2019  – All rights reserved  
 3 Terms and definitions   
3.1  
term  
armored helmet  - Means of individual armor, made in the form of the head  a dress designed to be periodically worn to protect a person’s head from 
exposure  cold arms and (or) small arms bullets, and (or) shrapnel attacks under specified conditions  operation.  
3.2 
body of the armored helmet  - Forming part of the protective structure of the armored helmet  protecting the human head from the means of 
destruction.  
3.3  
Suspension  mounting system  – system of the armored helmet  set of elements  united by a common design solution to enable  wearing an armored 
helmet on his head, adjusting it when used in accordance with the rules,  normative documents for a specific sample or group of homogeneous 
products.  
3.4  
armor visor  -  the structural element of the armored helmet  designed to protect the front of the user's head (optional for special requirements).  
3.5  
protective apron  - constructive element of armor, intended - to protect the neck/ neck and sides of the head. ( optional for s pecial requirements).  
3.6  
area of the armor  - the size of the outer surface of the armored helmet. Express  in square decimetres . 
3.7  
armored helmet cover  - cover made of woven materials with high wear -resistant qualities, waterproof, water -repellent. The colour of the material 
must be resistant to fading. Fastening of the cover is carried out using an elastic gum or strings. Additionally, on the case  can b e placed identification 
marks on the accessories.  
3.8 
protection area  - size of the outer surface of the structure armor. providing the protection class specified in the regulatory document.  
3.9 
class of the protective structure of the armored helmet  - Protective resistance index  the structure of the armored helmet to the effects of the 
regulated means of damage at a safe  back face impact of the damaging element in the absence of penetration of the protective structure.  
3.10 
mounts for fastening attac hments of armor  – part of the armored helmet, for mounting additional equipment (night vision, LED -torch, IR -torch, 
radio). (optional for special requirements)  
3.11 
impact resistance of armor - the shock resistance of the armored helmet. Ability to design armor  resist shock effects.  
3.12 
bulletproof resistance  - The property of a bulletproof helmet to provide protection from bullets of small arms.  
3.13 US 2080: 2019  
© UNBS 2019  – All rights reserved  3 
 measure of anti -fragment resistance of the protective structure of the armor - Fragment speed (V^). under  which is provided penetration of the 
protective structure of the armored helmet with a probability of 0.5.  
3.14 
non-penetration (penetration) of the protective structure of the armored helmet - absence (presence) of penetration through the means of 
destru ction beyond the inner surface of the protective structure of the armored helmet and / or penetration of the blade of a cold weapon beyond the 
inner surface beyond shield structure on the permissible (unacceptable) value established in regulatory documents  on a specific product or group of 
homogeneous products.  
3.15 
impact of the damaging element in the absence of penetration of the protective structure  - dynamic impact of the striking element, in case of 
non-penetration of the protective structure, determined by the indicator normalized by the regulatory document for a specific pro duct or group of 
homogeneous products.  
Note - Indicator  - a parameter thr ough which the criteria for evaluating the product, the valuewhich is obtained as a result of measurement, 
calculation and forecast.  
3.16 
Angle of Incidence  - The angle between the line of flight of a bullet and the perpendicular to the plane tangent to th e point of impact. See figure 1.  
3.17 
impact speed of the striking element  - velocity of a element with a protective structure of an armored helmet at the point of interaction (touch).  
3.18 
offset  (not offset) defeat of the protective structure of the armored helmet  -  
A hit that impacts the helmet at an angle of incidence no greater than 5°, and is at least 5 cm from a prior hit or the edge of the helmet. A bullet that 
impacts too close to the edg e or a prior hit and/or is of too high a velocity, but does not penetrate, shall be considered a fair hit for the determinati on 
of penetration.  
3.19  
Ballistic material  - special fabrics, materials ( various types depending on materials made from: Aramid, High Molecular Polyethylene,  ) and 
products made from them with high resistance to high -speed impact. Characterised  by high mechanical strength, elasticity, determined by the 
allowable deflection after a shot at them.  
3.20 
Armor  - is a protective layer of material with sufficiently high strength, viscosity and other mechanical parameters that are at a hi gh level of 
performance, which in one case or another performs the function of a barrier from a different strength and intensity  of impact on an object surrounded 
by this layer.  
3.21 
Ballistics  - science that deals with the motion, behaviour , appearance, or modification of missiles or other ammunition  acted upon by propellants, 
wind, gravity, temperature, or any other modifying sub stance, condition, or force  
3.22 
Full Metal Jacketed Bullet (FMJ)  - A bullet made of lead completely covered, except for the base, with copper alloy (approximately 90 copper -10 
zinc).  
3.23  
4 © UNBS 2019  – All rights reserved  
 Jacketed Soft Point (JSP)  - A bullet made of lead completely covered, except for the point, with copper alloy (approximately 90 copper -10 zinc).  
3.24  
Lead Bullet  - A bullet made of lead alloyed with hardening agents.  
3.25 
Round  - A single unit of ammunition before it has been fired . 
 
 
4 Classification  
4.1 Military combat helmets covered by this standard are classified by level of performance.  
- on protective properties;  
- on the design of protective structures.  
4.1.1 protective properties of  military combat -helmets  are divided  into : 
- bulletproof;  
- anti-fragment;  
- combined.  
4.1.2 design of the pro tective structures of the military combat helmets are divided  into: 
- soft: 
- on semi -rigid. based on soft protective structures with solid armor plates ; 
- hard, based on solid armo r materials.  
4.2 military combat  helmets are of three  protection classes . 
US 2080: 2019  
© UNBS 2019  – All rights reserved  5 
 The military combat helmets threat posed by a bullet depends, among other things on its composition, shape, caliber, mass, and impact velocity. 
Because of the wide variety of cartridges available in a given caliber and because of the existence of hand loads, helmets th at will defeat a standard 
test round may not defeat other loadings in the same caliber. For example, a helmet that prevents penetration by a 7,62x25  “TT” test round may or 
may not defeat a 7,62x25 round with different core or higher velocity . Similarly, for identical str iking velocities, non -deforming or armour  piercing 
rounds pose a significantly greater penetration threat than an equivalent lead core round of the same caliber. The test ammun ition specified in this 
standard represent common threats to the law enforcement  community  in the region . 
 
4.2.1  Class 1  (Impact Resistant, fragmentation protection ) 
This helmet protects against the impacts, cold weapons, fragments V50  - 250 m/s.  
4.2.2 Class 2  (9x19 mm)  
This helmet protects against the standard test rounds as defined in paragraph 5. 4 It also provides protection against lesser threats such as 12 gauge  
shotgun , 9x19 mm, as well as the threats mentioned in paragraph 4.2.1. 
4.2.3  Class 3  (7.62x25 mm )  
This helmet protects against the standard test rounds as defined in paragraph 5.4 It also provides protection against  7.62x25 , as well as the threats 
mentioned in paragraph 4.2.1 and 4.2.2.  
5 Requirements  
5.1 Acceptance Criteria  
A military combat helmets  material satisfies the requirements of this standar d if the sample item (see sec. 7 .1) meets the r equirements of sections 5 
through 5 .4. 
5.2 Workmanship  
military combat helmets  resistant protective materials shall be free from dents, blisters, cracks, cr azing, chipped or sharp corners, and other 
evidence of inferior workmanship . 
5.3 Labelling  
The Sample item and each full size panel of military combat helmets shall be permanently and legibly labelled and shall include the following 
information.  
 a) Name, designation, or logo of the manufacturer  
b) Type of material, according to section 6.1 of this standard  
c) Month and year of manufacture  
d) Lot number  
e) Strike face, if an y 
 f) Certification of compliance with this edition of this standard Items c and d may be incorporated into a single number, e.g ., a serial number.  
 
 
5.4 Ballistic Resistance   
6 © UNBS 2019  – All rights reserved  
 The ballistic resistance of each test specimen of ballistic resistant protective ma terial shall be determine d in accordance with section 7.4 . The test 
weapon and ammunition used during this test shall be those specified in table 1 in accordance with the type (threat level rat ing) speci fied by the 
manufacturer . Any penetration of the witn ess plate  or over-limit back -face deformation  shall constitute failure. The ballistic resistance test variables 
and test requirements are presented in table 1.  
                   Table 1 - Test ammunitions for military combat helmets                
Protection class  Type of the ammunition/threat  Weapon  Specification of the striking element  
Testing distance  
(meters)  Type of the core  Weight  
gr. Velocity  
m/s 
Class 1 of protection  
1 Cold weapon  Knife 
6X5 
 — Impact power (49±1)  
J. — 
1 
18.5-mm hunting cartrige   
12 gauge shotgun  Lead 34.0±1.0  390—410 5±0,1  
1 Fragmet simulator  Ballistic gun or equivalent  Steel ball  1.05  — 
Main classes of protection for military combat Helmet  
2 9x19 мм 
Pistol cartridge  
FMJ 
 9-mm Pistol  
Glock  
  Lead 8 335±1 5 5±0.1  
3 7.62x25  mm  
Pistol cartrige  
FMJ 
 7.62 «TT»  
 Lead 5,52 460±15 5±0,1  
 
Abbreviations:   
FMJ - Full Metal Jacket     
TT – Tulskiy Tokarev  
 
6. Specification  
6.1 Materials  
6.1.1 shell body  
It must be made  using one  of the following materials or its combination:  aramid, ultra-High molecular weight polyethylene, ceramic steel, 
aluminium, polycarbonate (impact protection).  
6.1.2 Shell weight  
a) It shall have weight of 2.0Kgs (maximum) with complete suspension system and chin  strap  
b) The helmet shall consist of shell body with complete suspension system and chin strap  
c) The fixation system shall be made of quick release buckle  
d) One size helmet with adjustable strap to fit different head sizes, must cover the forehead, ear level at the back of the head  US 2080: 2019  
© UNBS 2019  – All rights reserved  7 
 e) Visor/face Shield (Optional)  
i) Material of visor – polycarbonate (laminated)  
ii) Weight of visor − (2 Kgs) ( maximum)  
iii) Thickness – 15 – 30mm  
iv) Protection Area – 4.5 Sq.dm (maximum)  
v) Fitting                 −   must be shell fitted with fixation screws of visor fastening system  
vi) Comfort            −    construction designed in a way preventing any marked motion limitation of the user’s head downward his chest  
f) Features  
a) Visor is scratch resistant.  
7 Test methods  
7.1 Sampling  
The test specimen shall be a current production sample of the  military combat  Helmet.  
7.1.1 Sampling for Test  
Three helmets shall be selected at random  from each batch to constitute a test sample  as shown in table 2 .  
Table 2 – sampling criteria  
No. of helmets  Sample QTY  Acceptance level  
1 - 100 3 2 
101 - 1000  6 4 
1001 – 10,000  10 8 
Above 10,000  15 12 
 
7.3 Test Equipment  
It should be noted that hand -loaded ammunition may be required to achieve some of the bullet velocities required in the following sections  
7.3.1 Class 1  
7.3.1.1  Fragmentation  test 
 Fragments V elocity 50 - 250 m/s  
7.3.1.2 Impact test  
protective  material shall be at an angle of incidence no greater than 5°, and is at least 5 cm (2 in) from a prior hit or the edge of th e test specimen 
and at an acceptable velo city as defined in 7.3.1.1 . 
7.3.2 Class 2  Test Weapons and Ammunition  
7.3.2.1  lower  velocity  9mm  
The test weapon may be a Glock  handgun or test barrel. The use of a handgun with a 10 to 12 cm (4 to 4.75 in) barrel is suggested. Test bullets shall 
be 9X19 FMJ , with nominal masses of 8 g  and measured velocities of 3 40 ± 15 m per second.  
7.3.3 Class 3  Test Weapons and Ammunition   
8 © UNBS 2019  – All rights reserved  
 7.3.3.1 caliber 7,62x25 mm 
The test weapon may be a “TT” handgun or test barrel. The use of  a handgun with a 15 to 16.5 cm  barrel is suggested. Test bullets shall be 
7,62x25 mm, with nominal masses of 5.5 g and measured velocities of 460  ± 15 m per second.  
7.3.4 Special Type Test Weapon and Ammunition  
The test weapon, cartridge type, bullet construction, bullet caliber, bullet mass, and bullet striking velocity must all be s pecified by the user.  
7.3.5  Chronograph  
The chronograph shall have a precision of 1 µs and an accuracy of 2 µs. Its triggering devices shall be of either the photoel ectric or conductive 
screen type.  
7.3.6  Support Fixture  
The test specimen shall be supported by a fixture that permits its positio n and attitude to be readily adjusted so that it is perpendicular to the line of 
flight of the bullet at the point of impact.   
6.2 Test Sequence  
The helmets shall be examined to determine compliance with the requirements of table 1 , and shall then be tested for compliance with the 
requirements  of this standard . 
6.3 Ballistic penetration  
helmets shall be tested for resistance to ballistic penetration in accordance with table 2 . Penetration by any fair hit shall constitute failure. The 
detailed ballistic  performance requirements are summarized in table 1.  
7 BALLISTIC TESTING METHODOLOGY  
7.1. Test Processes  
During a test, the helmet being tested is affixed to a head  form  and a specified rifle is used to fire various projectiles into the helmet. The 
chronograph  is used as a recording  the velocity as illustrated in figure 1.  
7.2 safety  
The tested should be done in a enclosed environment.  US 2080: 2019  
© UNBS 2019  – All rights reserved  9 
  
Figure 1 demonstrates setup for testing  
 
 
 
 
10 © UNBS 2019  – All rights reserved  
 Bibliography  
[1] NIJ Standard 0108.01 — Ballistic Resistant Protective Ma terials  
 [2] GOST R 50 744-95 - Armored clothing. Classification and general technical requirements  
  US nnnn -n: yyyy  
© UNBS 2019 – All rights reserved  11 
 Certification marking  
Products that conform to Uganda standards may be marked with Uganda National Bureau of Standards (UNBS) Certification Mark sh own in the 
figure below.  
The use of the UNBS Certification Mark is governed by the Standards Act, and the Regulations made thereun der. 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 wit h the relevant 
Uganda Standard. The presence of this mark on a product or in relation to a produ ct 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 Ugan da National Bureau of 
Standards. UNBS marked products are continu ally checked by UNBS for conformity to that standard.  
Further particulars of the terms and conditions of licensing may be obtained from the Director, Uganda National Bureau of Sta ndards.  
 
 
US 2080: 2019    
 
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