 DEAS 361 : 2021  
ICS 65.100.01  
© EAC 20 21                                                                                                               Second  Edition  2021   
 
 DRAFT EAST AFRICAN STANDARD  
Carbaryl dusting powders — Specification  
EAST AFRICAN COMMUNITY  
 
 
 
 
 
 
 
 
 DEAS 345: 2021  
ii © EAC 20 21 – All rights reserved  
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may be p rosecuted . DEAS 345: 2021  
iii 
 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 th at through harmonized 
standardization, trade barriers that are encountered when goods and services are exchanged within the Community 
will be removed.  
The Community has established an East African Standards Committee (EASC) mandated to develop and issue 
East African Standards (EAS) and other deliverables. The Committee is composed of represent atives of the 
National Standards Bodies in Partner States, together with the representatives from the public and private sector 
organizations in the community.  
East African Standards are developed through Technical Committees that are representative of ke y 
stakeholders including government, academia, consumer groups, private sector and other interested parties. 
Draft East African Standards are circulated to stakeholde rs through the National Standards Bodies in the Partner 
States. The comments received are discussed and incorporated before finalization of standards, i n accordance 
with the p rinciples and procedures for development of East African Standards.  
East African Standards and other deliverables are subject to review, to keep pace with technological a dvances. 
Users of the East African Standards are therefore expected to ensure that they always have the latest versions 
of the standards they are implemen ting.  
The committee responsible for this document is  Technical Committee EASC/TC 069 , Organic and Ino rganic 
chemicals.  
Attention is drawn to the possibility that some of the elements of this document may be subject of patent rights. 
EAC shall not be held responsible for identifying any or all such patent rights.  
This second  editio n cancels and rep laces th e first edition (EAS 361 :2004 ), which has been technically revised.  
 
 
 DEAS 361:2021    
 
© EAC 20 21 – All rights reserved  
  
 Carbaryl dusting powders — Specification  
1 Scope  
This Draft  East African Stand ard prescribes the requirements, sampling and test methods for carbaryl dusting  
powders . 
2 Normative refer ences  
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.  
3 Terms and definitions  
No terms and definitions are listed in this document. ISO and IEC maintain terminological databases for 
use in standardization at the following addresses: — ISO Online browsing platform: available at 
http://www.iso.org/obp  
4 Requirements  
4.1 General  requirements  
4.1.1  The Carbaryl dusting powders  shall be in the form of a powder. It shall be free -flowing and devoid of 
lumps.  
 
Carbaryl  technical, used in the manufacture of the Carbaryl dusting powders  shall have been uniformly 
incorporat ed in a suitable  filler.  
 
4.1.2  The colour of the Carbaryl dusting powders  shall be either cream, or grey.  
 
4.1.3  The Carbaryl dusting powders , when dusted from a hand  rotary, shall issue freely without cloggin g or 
bridging.  
 
4.2 Specific requirements  
The Carbaryl dusting powders  shall comply with specific  requirements given in Table 1 when tested 
according to the methods  prescribed .  
 
 
 
 
 
 
 
 
 
 
 
 
  
2 
 Table - 1: Specific requirements for carbaryl dusting powders  
 
 
S/No. Characteristic  Requirement  Test Method  
i Carbaryl content %m/m, min.  5% of declared value  Annex A  
ii Material passing  
through 75 -micron sieve, % m/m, min  90 Annex B  
iii Bulk density, % m/m, max  60 Annex C  
iv Acidity (as H 2SO 4) %m/m,  
max or  
Alkalin ity (as NaOH), %m/m,  max 
Max  
0.05 Annex D  
 
 
NOTE: The actual value of the technical Carbaryl dusting powders  in the formulation shall be calculated to the second 
decimal place for rounding off the first decimal place before applying th e tolerance . 
5 Pack aging  
The Carbaryl dusting powders  shall be packed in securely clos ed suitable containers that  protects  its integrity . 
 
6 Labelling  
6.1 Each package  shall be legibly and indelibly labelled in English and/or any other official language (French, 
Kisw ahili, etc) used in the importing East African Partner State with the following information:  
a) the name  of the product as “ Carbaryl  dusting powder ”  
b) manufacturer’s name and physical address ;  
c) carbaryl content  
d) net content  in gram s 
e) country of origin ; 
f) batch number or lot number;  
g) date of manufacture and expiry  date. 
h) cautions for safety such as signal words, hazard pictogram, precaution statement, and hazard 
statement  
6.2 Carbaryl dusting powders shall be supplied with the   safety data sheet which is written in language  as 
depicted in 6.1  
7 Sampling  
Random samples of Carbarly dusting powder  shall be drawn for test in accordance with Annex E.    
3 
 Annex A  
(Normative)  
Determination of carbaryl content  
 
A.1 Polarimetric  method  
 
Principle of the method  
The Carbaryl dusting powd ers is heated with methanolic sodium hydroxide. To the resultant 1 -naphnol, iodine 
solution (see A.2.2.3) is added and the violet colour thus produced is measured in a colorimeter and the 
carbaryl content is calculated by running a sample of analytical gra de carbaryl along with the Carbaryl dusting 
powders  under analysis.  
 
A.2 Reagents  
 
A.2.1 Methyl alcohol  
Distilled, boiling range 64 to 65 °C. 
 
A.2.2 Standard methanolic sodium hydroxide solution  
0.5 N, prepared by weighing 10 g of sodium hydroxide pellets,  dissolving in 10 ml of water and making up 
500 ml with distilled methanol in a volumetric flask.  
 
A.2.3 Colour reagent solution  
Prepared by dissolving 1.27 g of iodine, 4 g of potassium iodine in 50 ml water in a beaker. This is then 
transferred to a 100 ml volumetric flask, shaken well and made to mark with water. It is to be ensured that all 
iodine goes into solution. This solution is diluted ten times its volume in water. This diluted solution is used 
for developing colour.  
 
A.3 Proced ure 
A.3.1 Preparat ion of sample solution  
Weigh enough Carbaryl dusting powders  containing carbaryl close to 0.06 g in a 100 ml Erlenmeyer flask. 
Pipette exactly 1 ml of standard methanolic sodium hydroxide solution followed by 10 ml methyl alcohol into 
the flask. Heat to bo il. Transfer the solution quantitatively into 100 ml volumetric flask. Wash the Erlenmeyer 
flask with methyl alcohol two or three times and add washings to the volumetric flask and finally make up to 
the mark with methyl alcohol. Pipette out 5 ml of the ab ove stock solution into 500 ml volumetric flask. Add 
300 ml of water and 20 ml of colour reagent solution, and finally make up to mark with water. Shake well.  
 
A.3.2 Preparation of standard carbaryl solution  
Weigh carbaryl, analyt ical grade (see note), clo se to 0.06 g in 100  ml Erlenmeyer flask and proceed as 
described in A.3.1.  
 
NOTE Carbaryl, analytical grade, may be prepared by reported recrystallization of carbaryl, technical from toluene.  
 
A.3.3 Preparation of blank solution  
Weigh the same amount of ca rbaryl formulation that is equivalent to the sample weighed for analysis  of carbaryl 
content. Transfer to 100 ml volumetric flask and make up to the mark with methyl. Shake  well. Pipette out 5 ml of 
this solution to 500 ml volumetric flask containing 20 ml  of colour reagent  solution and 300 ml of water. Make up 
to the 500 ml mark with water, shake well and use this solution  as blank.  
 
A.3.4 Measurement of absorbance  
Take the above three solutions to the colorimeter and fill one of the cells with the blank s olution and  adjust the 
colorimeter to zero absorbance at wavelength of 540 nm. Fill another cell with standard  carbaryl solution and  
measure the optical density at 540 nm. Similarly, measure the optical density for  the sample solution.  
 
NOTE Measurement of  optical density shall be carried within 15 minutes after addition of colour reagent.  
 
 
 
 
  
4 
 A.4 Calculation  
Carbaryl content, percent by mass = 𝐴 ×𝐵
𝐶 ×𝐷 × 100 
where,  
A Mass in g of the material in standard solution;  
B Optical density of sample;  
C Mass in g of the material in sample solution; and  
D Optical density of the standard solution.  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
5 
 Annex B  
(Normative)  
Test for sieving requireme nt for particle size 
 
B.1 Apparatus  
Test sieve  prepared for th e test by removing any film, grease or other water  repellent material and then by 
drying.  
 
B.2 Procedure  
B.2.1 Dusting  powders - Weigh accurately 10·0 g of the material  and transfer it to the test sieve. Cover the 
sieve and screen the material  in a Ro -Tap or a similar machine for 20 minutes, two small square  rubber cubes 
are introduced along with the material on the sieve to  facilitate the breaking -up of a ny soft -lumps of the caked 
material. After  20 minutes stop the machine and brush the residue on the si eve into a  tared weighing dish.  
Weigh the dish and determine the mass of the  residue.  
 
B.2.2 Granules - Weigh 100 g of the material and transfer to a  deck of sieves consisting of sieves of upper 
declared limit, lower declared  limit and a receiver. Screen f or 15 minutes, collect separately the fractions  
retained on sieves. Weigh separately fractions retained on the sieve of  upper declared -limit and colle cted in 
the receiver. Determine the oversize  retained on the sieve of upper  declared limit and that passin g through 
the sieve of lower declared limit.  
 
 
B.3 Calculation  
  
Materials  passing through specified  sieve in percentage by mass  is calculated as follows:  
 
100  (1− 𝑚
𝑀 ) 
 
Where , 
m = mass of the materials retained on the - test sieve, in g and  
M = mass of the material taken for the test in g. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
6 
 Annex  C 
(Normative)  
Test for balk density  after compacting  
 
 
 
C.1 Apparatus  
C.1.1  Graduated  cylinder - of 100 ml capacity with internal diameter of 27 to 29 mm  
C.1.2  Funnel - wide and short -stemmed  
 
C.2 Procedure  
C.2.1  Bulk density before compacting - Rest the funnel over the top  edge of the tared graduated cylinder. Fill 
the cylinder to the 100-ml mark by pouring the material through the funnel, without tapping, and  level th e 
powder with the minimum of disturbance. Lea ve the cylinder  untouched for 5 minutes and add more powder  
if necessary, to bring the  contents to the 100-ml mark, level again with the mini mum of  disturbance. Weigh 
the filled cylinder and calculate the bulk density  before compacting ( mass of the materia l/volume occupied by 
the material).  
 
C.2.2 Bulk density after compacting - Stopper the filled cylinder  (see. C.2.1), and d rop it 20 times through a 
height of 15 cm on to a  felt pad resting on a hard surface. Note the volume of the material after  compacting, 
Calculate the bulk density of the material after  compacting (mass of the material/volume occupied by th e 
material after  compacting).  
 
C.3 Test Evaluation  - The value obtained in C.2.2 shall not  exceed the value obtained in C.2.1 by more than 
60 percent.  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
7 
 Annex  D 
(Normative)  
Test for Acidity or Alkalinity  
 
 
 
D.1 Quali tative  test 
 
Procedure - Take about 0 .5 g of the material in a test -tube and mix with about 1 ml of distilled water . Test th e 
mixture for acidity or  alkalinity with a litmus paper. Determine the acidity (see D.2) or  the alkalinity (see D.3), 
as the case may be.  
 
D.2 Determination of acidity  
 
D.2.1 Reagents  
D.2.1.1  Methyl red indicator solution -aqueous – 1% (m/v). 
D.2.1.2  Bromocresol purple indicator solution – 1% (m/v) in ethy l alcohol.  
D.2.1.3  Standard sodium hydroxide  solution – 0.05 N.  
D.2.1.4  Standard hydrochloric acid – 0.05 N . 
 
D.2.2 Procedure  
Weigh accurately 10 .0 g of the material into a  dry conical flask, add 5 ml of acetone and mix. Warm the flas k 
gently  to affect  the solution of the active ingredient present. Add 75 ml of  water and let it stand for an hour. 
Filter the su pernatant aqueous  extract and take 50 ml filtrate. Titrate immediately with the standard  sodium 
hydroxide solution using methyl red or bromocresol  purple as the  indicator. Carry out a blank determination 
on an aliquot of 50 ml made from  25 ml acetone and 7 5 ml water.  
 
D.2.3 Calculation  
 
Acidity (as H 2SO 4), percent by mass  is calculated as follows:  
 
 
4.9 ×2 (𝑉−𝑣) 𝑁
𝑀 
 
 
where  
V = volume in millilitres  of the standard sodium hydroxide solution required for the test with the 
material,  
𝑣 = volume  in millilitres of the standard sodium hydroxide solution  required for the blank determination,  
N = normality of t he standard sodium hydro xide solution,  and 
M = mass in g of the material taken for the test.  
 
In case the blank shows alkaline reaction, neutralize with the  standard hydrochloric acid and calculate the 
acidity as follows:  
 
4.9 ×2 (𝑉𝑁1−𝑣𝑁2) 𝑁
𝑀 
 
where, 
V = volume in millilitres  of the standard sodium hydroxide solution required for the test with the 
material,  
N1 = normality of the standard sodi um hydroxide solution,  
𝑣= volume in millilitres of the standard hydrochloric acid  required for the bl ank determination,  
N2 = normality of the standard hydrochloric acid, and  
M = mass in g of the material taken for the test.  
 
 
 
 
 
  
8 
 D.3 Determination of Alkalinity  
 
D.3.1 Reagents  
D.3.1.1  Methyl red indicator  solution – aqueous, 1% (m/v). 
D.3.1.2  Bromocresol purple indicator solution – 1% (m/v) in ethyl alcohol.  
D.3.1.3  Standard hydrochloric acid – 0.05 N.  
D.3.1.4  Standard sodium hydroxide solution – 0.05 N.  
 
D.3.2 Procedure - Weigh accurately 10 .0 g of the material into a  dry conical flask, add 25 ml of aceto ne and 
mix. Warm the flask gently  to affect  the solution of the active ingredient present, add 75 ml of  water and let it 
stand for an hour. Filter the supernatant aqueous extract  and take 50 ml of filtrate , Titrate immediately with 
the standard  
hydrochlori c acid using methyl red or bromocresol indicator as the  indicator. Carry out a blank determination 
on 50 ml aliquot made from 25 ml  acetone and 75 ml water.  
 
D.3.3 Calculation  
 
Alkalinity  (as NaOH ), percent by mass is calculated as follows:  
 
 
4.0 ×2 (𝑉−𝑣) 𝑁
𝑀 
 
where  
V = volume in millilitres  of the standard hydrochloric acid required for the test with the material,  
𝑣 = volume  in millilitres of the standard hydrochloric acid required for the blank determination,  
N = normality of the standard hydro chloric acid , and 
M = mass in g of the material taken for the test.  
 
 
In case the blank shows acid reaction, neutralize with the standard  sodium hydroxide solution and calculate 
the alkalinity as follows:  
 
 
4.0 ×2 (𝑉𝑁1−𝑣𝑁2) 𝑁
𝑀 
 
where, 
V = volume in m illilitres  of the standard hydrochloric acid required for the test with the material,  
N1 = normality of the standard hydrochloric acid , 
𝑣= volume in millilitres  of the standard sodium hydroxide solution required for the blank determination,  
N2 = normality of the standard sodium hydroxide solution , and  
M = mass in g of the material taken for the test.  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
9 
 Annex  E 
(Normative)  
Sam pling of carbaryl dusting powder    
 
 
 
E.1 G eneral requirements of sampling  
 
In drawing, preparing, storing and handling test samples, the following precautions and directions shall be 
observed.  
 
E.1.2 Samples shall be neither taken nor stored at a place exposed to such weather as would effect basic 
change in its characteristics.  
 
E.1.3 Precautions shall be ta ken to protect the samples, the sampling instrument and the containers for 
samples from adventi tious contamination.  
 
E.1.4 The sampling instrument shall be made of glass or a metal on which the material has no action and 
shall be clean and dry when used.  
 
E.1.5 The sample containers shall be of such a size that they are almost but not completely f illed by the 
sample. They shall be clean, dry, leakproof and be made of the material which shall not react with the contents 
of the sample.  
 
E.1.6 Once the cont ainer is opened, care shall be taken to avoid the risk of deterioration of contents due to 
the presence of various factors, such as air, light and moisture.  
 
E.1.7 Each sample container shall be sealed airtight after filling and marked with full details o f sample such 
as date of manufacture, date of sampling, name of the manufacturer and other part iculars of the consignment.  
 
E.1.8 The sample or its container shall be marked to indicate the nature of the material and the risks 
associated with it, wherever  necessary.  
 
E.1.9 The sampler should always be alert for possible biases arising from the use  of a particular sampling 
device or from the segregation of material.  
 
E.1.10 Before drawing the test samples, contents of each container selected for sampling shall be, as far as 
possible, thoroughly mixed by suitable means.  
 
E.1.11  In the case of liquid formulations the proper selection of a representative sample involves a 
consideration of the physical laws of liquids, their chemical activity, the miscibility  of all constituents and the 
interference of any insoluble materials carrie d by the liquid.  
 
E.1.12 Avoid ignition of the material from open flames or sparks produced by static electricity or by metal 
equipment or tools.  
 
E.1.13 The operator shall have s afe access to and from the place where the sample is to be taken. He shall 
also have a safe working place with necessary light and ventilation.  
 
E.1.14 The person taking the sample shall be made fully aware of the nature of the hazards involved and 
precaut ions to be taken . In the case of toxic nature of material, the person should be instructed that in the 
event of his feeling unwell he should immediately report to the concerned authorities for medical attention.  
 
E.1.15 The operator engaged in sampl ing should hav e clean hands. It may be essential for the operator to 
wear clean gloves to safeguard against health or other hazards.  
 
E.1.16 In the case of those formulations which change shape according to temperature, the material may 
have to be heated to a suitable temperature to bring it into the liquid state from the solid or cooled to a suitable 
temperature to bring it to solid crystalline state.  
 
 
  
10 
 E.2 Sampling  implements  
 
Carbaryl dusting powder  - Generally a sampler (or bag trier) c onsisting of two barrels (outer and inner) having 
slots at equal intervals, as shown in Fig. 1, is recommended. The working end of the outer barrel is pointed 
for easy insertion into the bag. The sampler shall be made of steel, brass or any other suitable material for 
taking the material from different layers of the bag. The slots of the sampler can be opened or closed by 
rotating the inner -barrel -head. The sampler is inserted into the bag in a closed position. After in serting the 
sampler to the desired dep th, the sample material is collected by opening the slots of the sampler and then 
closing them. The sampler after this shall be taken out from the bag and then emptied on a smooth flat 
surface table/paper/any other sui table container. Thus, the sample of r equisite quantity is collected and 
difference in the material taken out from different layers of the bag can also be studied.  
 
NOTE - The tops of the inner and the outer barrels should be convenient for handling.  
 
 
 
 
Fig. 1 Typical sampler for formulatio ns in solid form  
 
E.3 Process control  
E.3.1  In order to ensure the desired quality of finished product, appropriate checks shall be made at raw 
materials and intermediate stages of the process of manufacture.  
E.3.2  Each consignment of raw materials receiv ed in the factory shall be tested on the basis of a 
representative sample for technical content, moisture and acidity/alkalinity requirements. Alternately, a test 
certificate shall be obtained from the supplier that the material conforms to the specified r equirements.  
 
11 
 E.3.3  Appropriate checks shall be carried out on the bias of weighing machine, time of mixing various 
ingredients and performance of the -stirrer used for mixing in the case pesticidal formulation s in liquid form.  
E.3.4  Formulations in solid - The process of manufacture may be a batch or a continuous one. In a batch 
process various raw material  are mixed at a time and fed to a grinder or a pulveriser from where the same 
are conveyed for homog enizing to a blender of known capacity. No further f eeding of grinder or pulveriser is 
possible till such time the entire ground material is homogenized in the blender and the same is emptied out. 
For a continuous process of manufacture various raw materia ls are continuously fed to the pulveriser from 
where  the same are continuously homogenized in a blender which is continuous to the grinding or the 
pulverizing unit. In this case there is no pause in the continuity of feeding the pulveriser and the finished  
material coming out of the blender for final packin g.  
E.3.5 Batch process - The quantity of material obtained by mixing various ingredients in a single operation 
in a mixer, not exceeding one tonne shall constitute a control unit (usually known as a batch in industry). Two 
representative samples shall be tested fro m each control unit, before packing, for active ingredient, and 
requirements. For remaining requirements, a composite sample prepared by mixing portions of material 
drawn at regular intervals shall be tested.  
E.3.6  Continuous process - Five tonn es or part thereof, not exceeding a day’s production, shall consti tute a 
control unit. Five representative samples shall be taken at regular intervals from each control unit before 
packing, and tested for active ingredient. The remaining requirements shall  be tested on the composite 
sample . 
E.4 L ot inspection  
E.4.1 General  
If the manufacturer has maintained an adequate and satisfactory system of quality control in the manufacture 
of pesticidal formulations, the resulting data and information may be made a vailable to th e purchaser along 
with the material supplied to enable him to judge the acceptability of the consignment.  
the following clauses shall be followed for determining the conformity of  the material to the requirements of 
the specification.  
E.4.2  Scale of Sampling  
E.4.2.1  Lot - In a single consignment, all the containers of the same type, same grade and belonging to the 
same batch of manufacture shall be grouped together to c onstitute a lot.  
NOTE - The definition of batch shall depend on the ty pe of process of manufacture, that is, whether a batch process or 
a continuous one. The distinction between the two processes is explained in E.3.4 .  
E.4.2.2  For ascertaining the conformity of the material to the requirements of the individual specificatio n, 
samples shall be tested from each lot separately.  
The number of containers to be chosen from a lot shall depend on the size of the lot and shall be according 
to Table 2 
Table 2 – Number of containers to be selected for sampling  
 
Quantity of material  in the lot (kg)  For containers of up to 25 kg   For containers of more than 25 kg  
Up to 1 000 
 3 2 
1 001  to 3 000  
 5 3 
3 001  to 10 000  
 7 5 
10 001 to above  
 10 7 
  
12 
 E.4.3 Test samples and referee samples  
E.4.3.1  Test samples  
E.4.3.1.1  Before drawing the test samples, mixing the contents of each container by shaking is usually not 
practical. Draw small portions of the material from as many places as practicable throughout the volume of 
each selected container (see Table 2). The total quantity of materi al drawn from each container shall be 
sufficient so as to make triplicate determinations for all the cha racteristics given in the individual specification, 
mix thoroughly all the portions of material from the same container.  
E.4.3. 1.2 A small but approxima tely equal quantity of material shall be taken from each of the selected 
containers and shall be we ll mixed so as to form the composite sample. The quantity of material in the 
composite sample shall be sufficient so as to make triplicate determinations for  the specification requirements 
to be tested on the composite sample. The composite sample shall be  divided into three equal parts, one for 
the purchaser, another for the vendor and the third for the referee.  
E.4.3.1.3  The remaining portions of the materi al (after the quantity needed for the formation of the composite 
sample has been taken) shall  be divided into three equal parts. These parts shall be immediately transferred 
to thoroughly dried sample containers which are then sealed air -tight and labelled  with all the particulars of 
sampling.  The material in each sealed sample container shall con stitute an individual test sample. These 
individual test samples shall be separated into three identical sets of test samples in such a way that each 
set has a sample representing each selected container. One of these three sets shall be marked for the 
purchaser, another for the vendor and the third for the referee.  
E.4.3.2 Referee Sample s –  
Referee sample s shall consist of a composite test sample and a set of individual test samples marked for 
this purpose and shall bear the seals of the purchaser and th e vendor. These shall be kept in a cool and dry 
place as agreed to between the purchaser and the vendor s o as to be used in case of dispute between the 
two. 
E.4.4 Number of Tests  
Active ingredient  and sieving  (particle size)  shall be tested on individual  samples and the remaining 
requirements on the composite sample.  
E.4.5  Criteria for Conformity  
The lot shall be declared as conforming to the requirements of the specification if E.4.5.1, E.4.5..2 and E.4.5 .3 
are satisfied.  
E.4.5.1  5.5.1.1 All the test r esults for each of the characteristics tested on individual samples (see 5.4.1 and 
5.4.2) satisfy the relevant specification requirements.  
E.4.5.2  The average of all the test results for active ingredient is greater than or equal to the nominal value.  
E.4.5.3  For the remaining requirements all the test results on the composite sample satisfy the relevant 
specification  requirements . 
 
 
 
 
 
 
 
 
 
 
 
  
13 
 Bibliography  
 
EAS 361:2004 Carbarly powders – specification  
  
IS 6940: 1982  Methods of test for  pesticides and their formulations  
 
IS 10627 :1983  Methods for sampling of  pesticidal formulations  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
14 
  