DEAS 468  
© EA C 2016                                                                                                                         Third  Edition 2014  
 
 
 
DRAFT EAST AFRICAN STANDARD  
DEAS 468 :2018 - Pre-painted metal coated steel sheets and coils — 
Specification  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
EAST AFRICAN COMMUNITY  
 
                                                                DEAS 468  
 © EAC 2018 – All rights reserved  
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Violators may be persecuted  DEAS 468  
  
 Forew ord  
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 objective, the Community established an East African Standards Committee mandated 
to develop and issue East African Standards.   
The C ommittee is composed of representatives of the National Standards Bodies in Partner States, together 
with the representatives from the private sectors and consumer organizations. Draft East African Standards 
are circulated to stakeholders through the Natio nal 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 technolog ical 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 .  
EAS 468:2018  was prepared by Technical Committee EASC/TC 035, Steel and steel products.  
This third  edition cancels and  replaces the second edition (EAS  468:2008 ) which has been technically revised.     
 
© EAC 2018  – All rights reserved  
  
 Pre-painted metal coated steel sheets and coils — Specification  
1 Scope  
This East Africa Draft Standard specifies requirements, test methods and s ampling for the pre -painted 
hot-dip metal -coated steel sheets and coils for exterior use  . 
2 Normative references  
The following referenced documents are indispensable for the application of this document. For dated 
references, only the edition cited applie s. For undated references, the latest edition of the referenced 
document (including any amendments) applies.  
ASTM D 4956, Standard specification for retroreflective sheeting for traffic control  
EAS 11, Galvanized plain and corrugated iron sheets — Specific ation  
EAS 85 -15, Paints, varnishes, lacquers and enamels — Methods of test — Part 15: Determination of 
resistance to neutral salt spray (Corrosion test)  
EAS 410, Hot-dip aluminium -zinc coated plain and corrugated steel sheets — Specification  
ISO 15184, Paints and varnishes — Determination of film hardness by pencil test  
3 Terms and definitions  
For the purposes of this standard, the following terms and definitions shall  apply . 
3.1 
bottom side  
side of pre -painted sheet opposite the exposed weathering side  
3.2 
top (face) side  
side of the pre -painted sheet, which is exposed to weathering  
3.3 
coil coating  
continuous process by which paint and other coatings are applied and baked onto a metal coated flat steel 
sheet  
3.4 
roll former  
apparatus that forms a continuo us strip of metal into various shapes by a series of contoured steel rolls  
3.5 
paint  
organic liquid generally pigmented, which is converted to a solid film by baking   
 © EAC 2018 – All rights reserved  
 3.6 
Top coat 
paint film on the surface which is exposed to weathering  
NOTE  The topcoat pro vides colour and durability and also acts as protection against atmospheric corrosion. Different 
topcoats are selected based on the performance or appearance requirements desired.  
 
3.7  
primer  
first complete layer of paint of a coating system applied to an u ncoated surface; the type of primer varies with 
the type of surface and its condition, the intended purpose, and the coating system being used  
3.8 
Wash coat 
thin organic coating applied to the back or unexposed side of the pre -painted sheet (also known as a backer  
coat)  
NOTE  The purpose of the wash coat is to provide protection against damage to the top -side coating during shipment 
and storage and also provide some additional durability to the unexposed side during the service life of the product.  
3.9 
chalking 
formation on a pigmented coating of a friable powder evolved from the film itself at or just beneath the surface  
3.10 
fade 
loss in colour intensity experienced by pigmented organic coatings over time, generally due to the effect of 
ultraviolet radiati on 
3.11 
gloss  
lustre, shininess or reflecting ability of a surface  
3.12 
sheets  
broad, thin, mass or pieces of metal including flat and profiled  
3.13 
substrate  
base material upon the surface of which an adhesive -containing substance is spread for coating  
NOTE The substrate is available in several different steel sheet qualities and with different metallic coatings as 
specified in clause 4, depending on the requirements of the purchaser. For the purposes of this standard , substrate refers 
to the steel sheet and metallic coating.  
3.14 
exterior  surface   
any pre -painted metal surface exposed to weathering including and not limited to roofing and cladding  
4 Substrate  
The substrate shall conform to all the requirements of EAS 11 and EAS 410 as per appropriate spec ification 
for the quality ordered.    
  
 5 Classification and symbol  
5.1 Classification of durability of paint coatings  
5.1.1  The durability of paint coatings shall be classified into three classes, and their symbols shall be as 
given in Table 1.  
Table 1 — Clas sification of durability of paint coatings and designations  
 
Classification  Symbol  Durability  
Class 1  1 Two or more coats having durability as specified in Table 3  
Class 2  2 Two coats having durability as specified in Table 3  
Class 3  3 One coat having d urability as specified in Table 3  
NOTE  For sheets and coils for which the quality is guaranteed for both sides, the classes of paint coating durability 
which have differences between the face side and the reverse side may be altered by agreement between t he purchaser 
and the manufacturer.  
 
5.1.2  The classes of paint coating, durability for the face side and the reverse side shall be expressed in 2 -
digit figures consisting of a combination of the designation of durability for the individual sides.  
Example :  
 
 
 
 
 
 
 
 
 
 
 
 
5.1.3  For both -side paint coating for which the quality is guaranteed for the face only, the non -guaranteed 
side shall be expressed by the digit 0.  
Example:  
  
 
 
 
 
 
5.1.4   The term “guarantee” mentioned shall mean that the product is in com pliance with the quality 
requirements specified in Clauses 6, 8, 10 and 12.  
5.2 Classification of applications  
5.2.1  Sheets and coils shall be classified into eight  types, and their classified symbols shall be as given in 
Table 2.  3   2 
Reverse side, Class 2  
Face side, Class 3  
Reverse side, Class 3  
Face  side, Class 3  
 
 
 3        3      
Reverse side, not guaranteed  
Face side, Class  2       0   
 © EAC 2018 – All rights reserved  
 Table 2 — Classification  of sheets and coils  
Classified symbol  
 Nominal thickness (base coated 
metal)   
mm Application  Classified symbol 
of base metal  
CGCC 0.25 ≤ x ≤ 1.6  Commercial soft  SGCC 
CGCH 0.25 ≤ x ≤ 1.0 Commercial hard  SGCH 
CGCD 1 0.40 ≤ x ≤. 1.6 Drawing  SGCD 1 
CGC 340 0.25 ≤ x ≤ 1.6 
Structural  SGC 340 
CGC 400 0.25 ≤ x ≤. 1.6 SGC 400 
CGC 440 0.25 ≤ x ≤ 1.6 SGC 440 
CGC 490 0.25 ≤ x ≤ 1.6 SGC 490 
CGC 570 0.25 ≤ x ≤. 1.6 SGC 570 
NOTE 1  G refers to the type of metal coating as described in EAS 11 and EAS 410 . 
NOTE 2  Nominal thickness other than those listed in the above table may be decided as agreed upon 
between the purchaser and the manufacturer . 
NOTE 3  Examples of indications for types of sheets and coils are given in Annex A.  
 
5.2.2  For the type of coating and the coating mass on the base coated metal for paint coating , EAS  11 and 
EAS 410 shall apply.  
5.2.3 Coating systems supplied under this standard  shall consist of primer coat covered by various types 
and thicknesses of topcoats  except class 3 .  The combination of primer and topcoat shall be classed as either 
a two coat thin film system or as a two coat (or more) thick film system. The organ ic coating shall consist of a 
primer and a topcoat on the top (exposed) side and  an optional wash coat on the bottom (unexposed) side  
that can either be tinted or non -tinted . 
5.2.4  In the case of sheets and coils for roofing and architectural sidings the s ymbol R for roofing and the 
symbol A for architectural siding shall be suffixed to the classified symbols given in Table 2  
5.2.5  For sheets and coils subjected to corrugating, the symbol W and the shape symbol for corrugated 
sheets shall be suffixed to th e classified symbols given in Table 2.  
5.2.6  For corrugation, the commercial soft and the commercial hard qualities listed in Table 2 shall be used.  
5.2.7  For roofing and architectural siding uses ( exterior exposed building products)  Class 2 or higher in t he 
classification of paint coating durability shall be applied.  
.6 Paint coating durability  
6.1 Sheets and coils shall be subjected to the dur ability test given in Table 3. The salt spray test shall be 
carried out in accordance with 13.2.1 and 13.4, and n o defects, except for slight blistering and rust on the test 
piece, shall be found on the test piece as a result of this test having been continued for the duration of time 
specified in Table 3.  
Table 3 — Durability test (salt spray and weathering test)  
Coating class  Gloss  Colo ur DFT(primer)  Minimum  
duration of salt Minimum  duration 
accelerated  
  
 spray test  weathering test  
Class 1   30 % loss  Delta E of 4 4 µ - 6 µ 2000 h 1500 h 
Class 2   35 % loss  Delta E of 6  4 µ - 6 µ 500 h  1000  h 
Class 3   40 % loss  Delta  E of 8  Not 
applicable  200 h  500 h 
NOTE  Delta E is a single number that represents the “distance” between two colours  
 
6.2 For class 3 in the classification of paint coating durability the symbol indicating a coating mass of Z 27 
(equivalent for other  coatings) or more shall be applied to the base metal for paint coating.  
6.3 When sheets and coils of Class 3 in the durability classification are subjected to the dew -cycle type 
accelerated weathering test in accordance with the provision of 13.2.2 and 13 .4, they shall not show 
substantial discoloration, fading or substantial chalking as a result of the test having been continued for the 
duration of time specified in Table 3 (Delta E minimum) . 
7 Surface protective treatments  
For protective treatments after painting when applied on the surface of sheets and coils, the types and 
symbols shall be given in Table 4.  
Table 4 — Classification of surface protective treatments and their symbols  
Classification of surface protective treats  Symbol  
Protective films  P 
Wax application  T 
 
8 Physical properties of paint coatings  
8.1 After being tested for items marked with “X” in Table 5 in accordance with 13.3 and 13.4, sheets and coils 
shall, by visual inspection, be free from the defects given in Table 5.   
 © EAC 2018 – All rights reserved  
 Table 5 — Physical properties  of paint coatings  
 
Characteristics  Commercial 
hard  
(CGCH); 
Structural 
(CGC 570) Commercial, 
Drawing ( CGCC, 
CGCD 1) 
Structural  
(CGC 
340,400,440,490) Requirements  Test method  
Bending 
adhesion  – X No peeling on the outer surface of the 
bent portion not less than 7 mm apart 
from either side edge of the test piece  13.3.2 (Bend test)  
Paint film  X X No scratch marks on the paint film  13.3.3 (pencil 
hardness test)  
Impact 
resistance  – X No peeling  13.3.4 (Impact test)  
Adhesion  X – No irregula rities on the tested portion  13.3.5 (Cross 
scoring test)  
Flexibility  X X No peeling  Flexibility test  
Abrasion  X X No burnished appearance in rubbed 
area after 100 double rubs on both 
topcoat and wash coat.  13.3.6 (Abrasion 
[MEK] test)  
 
8.2 Test items fo r sheets and coils for roofing, architectural siding, and corrugation shall be in accordance 
with Table 5.  
8.3 Paint adhesion and peeling shall be checked by applying standard filament tape.  
9 Dimensions  
9.1 The dimensions of sheets and coils shall be expressed  in millimetres  
9.2 The standard nominal  thickness of sheets and coils shall be in accordance with EAS 11 and EAS 410.  
10 Paint coating (dry film thickness)  
10.1 Primer  
The purpose of the primer is to serve as the bond between the substrate and the topcoat and to offer added 
corrosion protection for the entire system. The primer shall be compatible with the topcoat in order to ensure 
optimum properties of the coating system. For this reason,  the primer is usually not specified by the purchaser 
but it  is generally selected by the coating supplier or pre -painted sheet producer for optimum compatibility.  
For building products, primer thickness shall be 5 µm with tolerance of ± 1 µm. High performance primers with 
films as thick as 75 µm with tolerance  of ± 8 µm may be specified.  
10.2 Wash coat  
For building products, wash coat  thickness shall be 8 µm with tolerance of ± 1 µm.   
  
 10.3 Top coat 
10.3.1  Different topcoats shall be selected based on the performance or appearance requirements desired. 
For building products, topcoat thickness shall be 15  µm with tolerance of ± 5 µm. High-performance topcoats 
may be specified. Other upgraded systems may specify the application of two or more layers of topcoats.  
10.3.2  The top  coat shall be applied for the exposed side  of the sheet. However the unexposed side may be 
ordered with the same coating as the topside.  
10.3.3  A wash coat  or backer  coat shall be applied to the bottom side.  
NOTE  The selection of a topcoat depends on the performance parameters required such as c halking and fading, plus 
the corrosion resistance needed, which shall take into account the severity of the service environment.  
11 Shapes  
11.1 Camber  
Maximum camber values for sheets and coils shall be as given in Table 6. 
Table 6 — Maximum camber values  
Dimensions in millimetres  
Width  Length  
Flat sheet / Coil 
≤2000  ˃ 2 000  
≤ 630 4 4 in any 2  000 of length  
˃ 630  2 2 in any 2  000 of length  
 
11.2 Deviation from squareness  
Deviations from squareness for flat sheets shall be expressed by A/W x 100 (%) as shown in Figure 1 and 
shall not exceed 0.3 %.  
 
Figure 1 — Deviations from squareness for flat sheets  
11.3 Flatness  
11.3.1  Flatness for sheets shall be as given in Table 7. 
 
 
 
 © EAC 2018 – All rights reserved  
 Table 7 — Flatness  
Dimensions in millimetres  
 
Width Classification , max.  
Bow  Edge wave  Center buckle  
≤ 1 000 12 8 6 
1 000 ˂ x ≤1 250 15 10 8 
 
11.3.2  Flatness of sheets shall be determined as they are placed on a surface plate. The value shall be 
obtained by subtracting the sheet thickness from maximum deviation from the horizontal flat surface and the 
flatness shall be applied to the upper surface of the sheet.  
12 Appearance  
Sheets and coils shall be free from defects detrimental to practical use. However, in the case of coils, they 
may contain some abnormal imperfections, including welds and floating.  
13 Tests  
13.1 General  
The properties of the substrate and the organic coating system, combined with the method of forming, 
determine the life expectancy and general appearance of the final product. Each coating system has different 
qualities in regard to g loss, flexibility, fading, chalking, and resistance to cracking at bends, abrasion 
resistance, dirt retention, and resistance to varying atmospheric conditions. All of these factors should be 
considered in any end application. The test methods used to meas ure some of these parameters shall be in 
accordance with EAS 11 and EAS 410 .  
13.2 Endurance tests for coatings  
13.2.1  Salt spray test  
The salt spray test shall be done as follows:  
a) a test piece shall be 50 mm or more in width and 100 mm or more in length ; and 
b) the testing method shall comply with EAS 85 -15. 
13.2.2  Accelerated weathering test  
The accelerated weathering test shall be as follows.  
a) a test piece shall be 50 mm or more in width and 100 mm  or more  in length ; and  
b) the testing method shall comply with the accelerated weathering test specified in ASTM D 4956.  
13.3 Tests for physical properties of paint coating  
13.3.1  Sampling of test specimens  
For corrugated sheets, test specimens shall be taken from flat sheets prior to corrugation.   
  
 Specimens shall be t aken from products of the same quality, dimensions, coating mass, and color  
The sampling of test specimens for the T -bend, pencil hardness, impact, cross -scoring and abrasion (MEK) 
tests shall comply with the following requirements : 
a) for continuously paint -coated coils or cut length from continuously paint -coated coils, one test 
specimen shall be taken from each 50 t or its fraction ; 
b) for sheets manufactured by paint -coating base metal cut to a specified length, one test specimen shall 
be taken from not more  than 3  000 sheets ; 
c) apply zinc coating weight test for galvanized plain substrate ; 
d) apply alumin ium zinc and silicon weight test for the 55  % alumin ium zinc substrate ; and  
e) the testing method shall comply with the accelerated weathering test specified in AST M D 4956.  
13.3.2  Bend test  
The bend test shall be as follows:  
a) The test piece shall have a width of 75  mm to 125 mm and a length suited for the test.  Unless 
otherwise specified, one test piece shall be cut out of each test specimen paralleled to the rolli ng 
direction of the base metal.  
b) By referring to the internal  spacing of bend shown in Table 8, the test piece shall be bent manually as 
shown in Figure 2  
 
 
Figure 2 — Direction of bend test  
c) The bend test shall be applied to the symbols indicating coating ma sses of Z 27 ( equivalent for other 
coatings) and  under. For sheets and coils using an alloyed type as base metal for paint coating, the 
above shall be used as reference only.  
d) For sheets and coils for roofing, architectural siding, and corrugation, the inte rnal spacing of bend 
shall be in accordanc e with that for, the relevant classified symbol in Table 8. 
 
 © EAC 2018 – All rights reserved  
 Table 8 — Internal spacing of bend  
Classified symbol  Bend angle  Nominal thickness , 
mm Internal spacing of bend  
CGCC 180 ≤ 0.40 2 sheets of nominal thic kness  
CGCH – 0.40, ˂ x ≤ 1.6 3 sheets of nominal thickness  
CGCD 1 180 0.40 ≤ x ≤  1.6 2 sheets of nominal thickness  
0.40 ˂ x ≤ 0.40 3 sheets of nominal thickness  
CGC 400 180 ≤. 0.40  3 sheets of nominal thickness  
0.40 ˂ x ≤ 1.6 3 sheets of nominal  thickness  
CGC 440 180 ≤ 0.40 4 sheets of nominal thickness  
0.40 ˂ x ≤ 1.6 5 sheets of nominal thickness  
 
13.3.3  Pencil hardness test  
The pencil ha rdness test shall be as follows:  
a) a pencil having the hardness symbols given in Table 9 and meeting the requirements of ISO 15184 
shall be used ; 
Table 9 — Symbols for pencil hardness  
Durability classification  Hardness symbol  
Class 1  H 
Class 2  H 
Class 3  F 
 
b) the pencil shall be sharpened so as to expose about 3 mm of lead. While being held at right angles t o 
an abrasive paper of No. 400 or finer which has been laid on a hard, flat surface, the point of the lead 
shall be made to draw a continuous circle gently and thus be ground down so as to obtain a flat 
surface with sharp edges at the tip. The tip of the l ead shall be ground flat for each test ; 
c) holding the prepared pencil at about 45 º to the surface of the test specimen, straight lines shall be 
drawn with it in the direction shown Figure 3, with the load being applied of about 10 N ; and  
d) the lines shall be n ot les s than 20 mm in length and not less than three in number.  
 
 
Figure 3 — Pencil hardness testing method  
 
  
 13.3.4  Impact test  
The impact test shall be as follows:  
a) a weight shall be dropped onto a test face from a Du Point type impact tester, as shown in Figure 4 ; 
b) the mass of the weight shall be 500  g  1 g, and the radius of the impact point shall be 6.35  mm ± 
0.03 mm ; and  
c) the weight shall be dropped from a height of 500 mm above the test piece.  
 
 
Figure 4 — Du Point Impact -deformation tester  
13.3.5  Cros s-scoring test  
The scoring test shall be as follows:  
a) straight lines shall be scored with a safety razor blade or other pointed objects so as to reach the 
surface of the coating through the paint film and to form squares ; and  
b) eleven straight lines shall be scored crosswise at right angles, at intervals of 1 mm.  
13.3.6  Abrasion (MEK) test  
13.3.6.1  Apparatus  
The following apparatus and materials shall be used for the abrasion (MEK) test : 
a) test piece (100 mm x 200 mm) ; 
b) MEK (Methyl Ethyl Ketone) ; 
c) cheese cloth ; 
 
 © EAC 2018 – All rights reserved  
 d) squeeze bottle ; and 
e) solvent resistant gloves . 
13.3.6.2  Procedure  
The abrasion test shall be done as follows:  
a) select an area of the coated surface to be tested. Clean the area with tap water and a dry cloth. Mark 
a section of the cleaned area, measuring 150 m m by 25 mm with a solvent resistant marker, in which 
to perform the MEK double rubs ; and  
b) fold a 300 mm square piece of cheese cloth so that the thickness is doubled and saturate it until 
dripping wet with MEK. Place an index finger in the center of the che ese cloth and gather the 
remaining cloth. With the index finger at a 45 ° angle to the surface, rub with moderate pressure over 
the marked area. Do not allow more than 10 s to elapse between wetting the cloth and beginning to 
rub the coating. Wet the cloth as often as needed without lifting it from the surface. One forward and 
backward motion constitutes one double rub. Do a control test adjacent to the MEK test area. Use 
only a dry clean cloth rubbed in the same manner as the original test for the control t est to establish 
the effects of the cloth on the coating.  
13.4 Cautions for testing  
The tests require the following cautions:  
a) since the durability and physical properties of sheets and coils are affected by environmental 
conditions and by paint coating fla ws incurred in handling, hair cracks on processed surfaces, etc., 
testing shall be conducted on flat sheets with normal surfaces ; and  
b) the temperature for tests on physical properties shall be from 5 C to 35 C. 
14 Inspection  
Inspection shall be as follows : 
a) the durability test is a performance test, and the test results shall comply with the requirements in 
Clause 6 ; 
b) the results of tests and inspection on the physical properties of paint coatings, dimensions, shape 
and appearance shall satisfy the requireme nts specified in Clauses 6 , 8, 9, 10, 11  and 12 ; and  
c) when part of the test results for physical properties fail to meet the requirements, a retest using 
double the number of test pieces taken from the same lot is permitted.  
15 Marking  
15.1 Reverse side mar king 
15.1.1  For the sheets and coils which have passed inspection and the quality of which is guaranteed for one 
side only, the reverse side markings shall be as shown in Figure 5 .  
For both -side guarantees, the sheets and coils shall be marked only when s o specified.  
15.1.2  Each sheet or coil shall be permanently and legibly  marked.   
  
 15.1.3  For roofing , the fol lowing shall be indicated:  
a) manufacturer’s name  and/or trade name ;  
b) nominal thickness ; 
c) batch number ; and   
d) designation of the substrate . 
15.1.4  For oth er than roofing the following items may be indicated, upon agreement between the purchaser  
and the manufacturer : 
a) manufacturer’s name  or trade name ; 
b) nominal thickness ; 
c) classified symbol (including shape symbol for corrugated sheets) ; 
d) batch number ; and  
e) desig nation of the substrate . 
15.2 Package marking  
Where s heets and coils are packed , each package shall be marked permanently and legibly with the following  
information : 
a) manufacturer’s name  and/or trade name ; 
b) classified symbol (including shape symbol for profi led sheets) ; 
c) name of colour ; 
d) symbol indicating coating mass ; 
e) dimensions ; and  
f) number of sheets or mass where applicable . 
16 Storage, transportation and fabrication  
16.1 Cautionary measures for storage, transportation, and fabrication shall be supplied with every sale in 
accordance with 16.2 to 16.4. 
16.2 For the storage of sheets and coils, selection of a well -ventilated indoor place virtually free from dust 
and moisture should be specified. Mixed loading with corrosive substances such as chemicals should be  
avoided.  
16.3 Every precaution should be taken against paint coating damage and contact with water during 
transportation and transfer.  
16.4 The formability of paint coatings deteriorates with the descent of temperature.  When sheets and coils 
stored in a low-temperature warehouse are to be fabricated, the temperature of the material should be 
elevated to normal temperature.   
 © EAC 2018 – All rights reserved  
 16.5 The indication of sheets and coils shall normally be made in terms of classified symbol, symbol for 
guaranteed side(s), symbol fo r surface protective treatments, symbol indicating coating mass, name of colour, 
and dimensions, as given in Figure 5.  
 
Figure 5(a) — For sheet  
 
 
Figure 5(b) — For coil  
 
 
  
 Figure 5(c) — For roofing ( coil) 
 
Figure 5(d) — For corrugated sheet using commerc ial, hard  
Figure 5 — Indications for sheets and coils  
 
 © EAC 2018 – All rights reserved  
 Annex A  
(informative)  
 
Examples of indications for types of sheets and coils  
Examples of indications for types of sheets  and coils are given as follows:  
 CGCC -20 
Pre-painted hot-dip zinc -coated steel she ets and coils, commercial, Class 2, one-side guaranteed  
 CGCCR -22 
Pre-painted hot -dip zinc -coated steel sheets and coils for roofing, u sing Commercial Quality, Class 2, 
both-side guaranteed  
 CGC 400 -32 
Pre-painted hot-dip zinc -coated steel sheets and coil, s tructural , Class 3 (Class 2 for reverse side ), 
both-side guaranteed  
 CGCCR -20 W2  
Corrugated steel sheets for roofing of pre -painted hot -dip zinc -coated steel sheets and coils , using 
Commercial Quality, Class 2, one -side guaranteed   
  
 Annex B 
(informative)  
 
Ordering information  
B.1 The coated flat sheet covered by this standard is produced on continuous lines to decimal thickness 
only. The thickness of the sheet includes the base steel and the metallic coating. The thickness of the organic 
system is in addition to the substrate (base steel and metallic coating).  
B.2 Orders for ma terial under this specification should include the following information, as applicable, to 
describe the required product adequately:  
a) product  name (pre -painted steel sheet);  
b) designation of substrate, (including quality designation and grade, if required ; 
c) metallic coating type and weight ; 
d) organic coating system designation ;  
e) dry organic film thickness top side and bottom side (the top side typically consists of a primer and 
topcoat and the bottom side a primer and a wash coat ; however the bottom side may be ordered to 
the same quality as the top side) ; 
f) protection required (waxed or strippable coating) ; 
g) dimensions (thickness, width, either flat or formed (overall or cover) and length (if cut length) and, if 
applicable, type of formed configuration ; 
h) coil size r equirement: maximum outside diameter, acceptable inside diameter, and maximum weight 
(mass) ; 
i) cut length requirement maximum lift weight (mass) ; 
j) special requirements, if any ; and 
k) application (part identification and description).