Stability Testing
Stability Tests
Stability tests are one of the important testing procedures performed on biocidal products, the main purpose of which is to determine or verify the shelf life of the product. Stability tests are an issue that companies can have information about their products and consumers pay attention to when purchasing the product.
The stability of biocidal products can be determined by 3 different test methods; short-term stability, long-term stability, open package stability tests.
Stability methods observe the changes in parameters such as color, odor, appearance, pH value, viscosity of biocidal products. Criteria such as general temperature and time are determined for each product and the change in the process is observed. As a result of stability tests, information can be obtained on storage conditions and packaging choices for biocidal products.
Acceptable tolerance limit value in stability test procedures is accepted as maximum ± 10% over the initial value. In stability studies, the active substance content, relevant physical and chemical properties of the biocidal product before and after storage are determined. Observation of the appearance of the packaging and an assessment of the weight change are also performed.
Short Term Stability Tests
Short-term stability tests are accelerated testing of products. Within the scope of the "Regulation on the Operating Procedures and Principles of Biocidal Product Analysis Laboratories", ambient temperatures and duration information of accelerated test procedures are specified. Accelerated stability tests are not applied especially for biocidal products that will deteriorate above 30
o C. As a result of the test, visual changes in the products, pH value, changes depending on the amount of active substance quantification are controlled.
Long Term Stability Tests
Long stability tests on biocidal products are carried out especially for biocidal products that will deteriorate above 30
o C. In long-term stability tests, the product is tested at 25
o C for the period specified on the label. Verification of test procedures is based on visual changes, pH value, changes due to active substance quantification.
Open Packaging Stability (Stability Test After Opening the Lid)
In addition to long and short-term packaging tests, tests are also carried out to determine the duration of use of unpackaged biocidal products. Open package stability is based on testing the product at 25
o C for the period specified on the label and evaluating the stability of the product in line with the chemical and physical tests deemed necessary.
Physical Tests in Biocidal Products
| pH Determination |
Eoropean Pharmacopoeia 7.0, 01/2008:20203, Sayfa 24-25 |
| Density Determination |
Chemical Disinfectants and Antiseptics |
| Determination of Appearance, Quantity, Odor and Color Control |
Chemical Disinfectants and Antiseptics |
| Determination of Solvents (Ethyl Alcohol, Methyl Alcohol, 1-Propanol, 2-propanol (Isopropyl Alcohol)) |
BS EN 14667, AOAC 983.13 |
You can contact us for Stability Tests for biocidal products.
