Our laboratory

Our modern laboratory ensures stable and durable formulations which meet even the most challenging customer requirements. We create up-to-the-minute formulations which excel at putting the biological effects of active substances to maximum use.

Our analytical chemists study physicochemical properties to the extent required for registration and requirements of the specification FAO. We also perform analyses of products supporting agrotechnical procedures, i.e. those products that improve the properties of agrochemical spray liquids. We reduce any risks that might occur during transport, storage or utilisation, by paying special attention to the selection of appropriate components at the formulation stage.

Our objective is to minimise any adverse impact that our products might have on the environment. On the basis of the inspection which was held in 2014 by Bureau for Chemical Substances confirmed that Pestila Sp. z o.o. complies with principles Good Laboratory Practice, which certifies laboratories conducting high-quality research.

This means that we are fully authorised to carry out studies assessing the physicochemical properties of substances and mixtures.


Definition of Good Laboratory Practice

Good Laboratory Practice (GLP) embodies a set of principles that provides a framework within which studies are planned, performed, monitored, recorded, reported and archived. These studies are undertaken to generate data by which the hazards and risks to users, consumers and third parties, including the environment, can be assessed for pharmaceuticals, agrochemicals, veterinary medicines, industrial chemicals, cosmetics, food and feed additives and biocides.

GLP helps assure regulatory authorities that the data submitted are a true reflection of the results obtained during the study and can therefore be relied upon when making risk/safety assessments.

Our laboratory specialises in

– The determination of physical and chemical properties
– Content of active substance

The tests are carried out in accordance with CIPAC methods. If required, new analytical methods are developed and validated in accordance with SANCO regulations.


We offer among others, the following analyses

Our laboratory has the GLP certificate, which means that all defined standards for organisation, personnel, facilities, test and reference substances, work instructions, result reporting, and archiving are met.

The statement of GLP compliance guarantees the international recognition of test results

Content of active substance

CIPAC, OECD, Own methods

Content of active substance is analysed by chromatography methods in accordance with CIPAC Handbook, the OECD Procedures, the European Union Procedures, methodologies of producer, and own methods. Our methods comply with the requirements of the European Union and with the principles of Good Laboratory Practice. We use gas chromatography  with mass detector and flame ionization detector. In liquid chromatography we use UV detector, fixed or variable wavelength, which includes diode array detector (DAD) and refractive index detector.

Persistent foaming


Persistent foam is a measure the amount of foam likely to be present in a spray tank or other application equipment following dilution of the product with water in accordance with the label instructions.

Dilution stability


Dilution stability is determined to ensure water soluble products dissolve readily and, when diluted, produce stable solutions without precipitation, flocculation etc.

Particle size distribution


The nominal size range for solid materials for direct application (eg dustable powders and granules) and solid materials for dispersion in water (eg wettable powder and granules) must be determined. The data are required to ensure that an acceptable proportion of the product is within an appropriate size range. We have the Mastersizer 3000 laser diffraction particle size analyzer which delivers rapid, accurate particle size distributions for wet dispersions. The Mastersizer 3000 is the latest generation of the world’s most popular particle sizing instrument.

Water by Karl-Fisher


Karl Fischer method is classic technique providing a reliable and truly practical method for the determination of water content in raw materials and products. Water content plays a significant role in many chemical processes and affects product performance, organoleptic properties and stability. It is an important parameter for neat substances as well as for produced goods and must be controlled, especially in the chemical, pharmaceutical, petrochemical and food and beverage industries.

Accelerated testing


Stability tests at elevated temperatures are designed to increase the rate of chemical degradation or physical change of a product. Accelerated testing is performed at elevated temperatures in an attempt to obtain information on the shelf life of a product in a relatively short time. Accelerated testing involves extrapolations from higher to lower temperatures and from shorter to longer storage periods. The FAO Pesticide Specifications recommend testing of the relevant product parameters before and after storage at 54°C for 14 days.


Visually - EPA Product Properties Test Guidelines OPPTS 830.6302 – 830.6304 and own methods

This test is performed visually and organoleptically. The test consists of following parameters: colour, odour and physical state of products. The physical state is described in qualitative terms such as solid, liquid, suspension etc. Odour involves the use of descriptive terms e.g., thymol-like odour, characteristics of aromatic compounds, garlic-like etc.



Wettability of solid products which are diluted for use (e.g. wettable powders, water soluble powders, water soluble granules and water dispersible granules) is determined to ensure the product is adequately wetted before use.

Spontaneity of dispersion

CIPAC MT 160,   CIPAC MT 174

The spontaneity of dispersion of water dispersible products (eg water dispersible granules and suspension concentrates) is determined to show the product is easily and rapidly dispersed when diluted with water.



The density of a solid or liquid substance is defined as the mass of the substance occupying unit volume at a stated temperature. The density is measured by traditional methods (hydrometer and pycnometer) and by a modern density meter. The density meter is the most accurate density meter on the market and is ideal for numerous fields of application and successful continuous operation in the laboratory.

Dry sieve test


The dry sieve test is designed to determine the particle size distribution of dustable powders and granules that are intended for direct application, to ensure acceptable application.

Emulsifiability, re-emulsifiability and emulsion stability


For products which form emulsions, emulsifiability, emulsion stability and re-emulsifiability data are required to determine whether a product forms and maintains a stable emulsion.

Dispersion stability of suspo-emulsions


The result of this test shows if a sufficient amount of active constituent is homogeneously dispersed in suspension and emulsion in the spray liquid, to give a satisfactory and effective mixture during spraying.



This test demonstrates that the user can make use of the maximum amount of the product in the container and that an excessive amount of the material does not remain in the container. This test should be conducted with suspension concentrates, capsule suspensions and suspo-emulsions.



The method is suitable for determining free acidity or alkalinity in technical or formulated pesticides. The acidity or alkalinity is determined by titration with standard acid or alkali in the presence of methyl red.



The pH value of a liquid is measured by the pH meter. The pH is measured directly in the formulation or in aqueous solutions, suspensions of products.


CIPAC MT 15,   CIPAC MT 161,   CIPAC MT 168,   CIPAC MT 177,   CIPAC MT 184

Suspensibility of water dispersible products (e.g. wettable powders, water dispersible granules and suspension concentrates) is determined to demonstrate that a sufficient amount of the active substance is suspended in the spray liquid to give a satisfactory, homogeneous mixture during spraying.

Wet sieve test


For water dispersible products, a wet sieve test must be conducted. Wet sieve analysis determines the quantity of particles in a formulation collected on a screen after dilution in water. The residue remaining on a sieve is determined after dispersion to ensure that no unacceptable residue remains, which can cause blockage of nozzles in application equipment. This test is applicable to wettable powders, suspension concentrates, water dispersible granules, aqueous capsule suspensions, dispersible concentrates, suspo-emulsions, water soluble granules and water soluble powders.

Method development and validation


We offer development and validation of analytical method.  We have expertise in using instrumental analytical methods including HPLC and GC. Validation of method  is in compliance with SANCO. To provide customers with flexibility we offer the possibility of working according to our own Standard Operating Procedures or on protocols supplied by customers. Customer receives a validation protocol and report.

Cold stability testing


Liquid formulations (capsule suspensions, emulsifiable concentrates, oil-in-water emulsions, microemulsions, soluble concentrates, suspension concentrates) may be adversely affected by storage at low temperature. Storage at low temperature may result in crystallisation of active constituent(s), significant changes in viscosity or phase separation of emulsions. Therefore, the liquid formulations should also be tested at 0±2°C or lower for 7 days.

Real-time testing


The real time testing is normally performed at or above 20°C for at least 2 years. Depending on the formulation type and packaging material, testing under standardised relative humidity and light exposure conditions may also be required.

Pestila Sp. z o.o.

Studzianki 24a,
97-320 Wolbórz, Poland
51°30'44.4"N 19°53'49.2"E


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