Exemplos de uso de Migration tests em Inglês e suas traduções para o Português
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Figure 4 shows the evolution of chloride concentration in the anolyte chamber during migration tests.
Migration tests for phthalates are currently under development and will probably be available within months.
Verification of a migration in the simulants is to be carried out using conventional migration tests.
Several studies[15, 16, 17]report the use of migration tests to evaluate the resistance of concrete to penetrating chloride ions.
THERMOLAST® K features good migration properties in contact with foods,which can be proven in detail by migration tests.
More recently, several authors have used migration tests to calculate the diffusion coefficient in nonsteady-state conditions 16, 17.
To implement previous legislation on plastic packaging material to take account of technical progress in migration tests.
The steady-state diffusion coefficient Ds in migration tests is estimated using the Modified Nernst-Planck equation.
To implement previous legislation on plastic packaging material to take account of technical progress in migration tests.
For food simulants verification shall be carried out using conventional migration tests, the basic rules for which are described in Directive 93/8/EEC. 5.
Analogous to the issue of suitability for contact with food,raw materials intended for contact with drinking water have to pass suitable migration tests.
Verification of a migration in the simulants shall be carried out using conventional migration tests, the basic rules for which are laid down in the Annex to this Directive.
The Directives lay down the procedure to be followed in cases where a Member States ascertains that, for a given plastic material or article,the basic rules for migration tests are inappropriate.
There is still no scientifically approved method for migration tests which could partly replace the proposed legislation, and no such method should therefore be alluded to in the legislative text.
All products in the ID series comply with the strict requirements of the food industry andare subject to migration tests required by the regulation(EU) 10/2011.
As a rule, raw material manufacturers must carry out these migration tests for the qualification of suitable materials and decide for them selves according to which regional regulations they will carry out the tests. .
This is ensured by carefully selected raw materials andmaterial processing in accordance with GMP 2023/2006/EU as well as migration tests performed on Ensinger semi-finished products.
You can also expect to see information about more migration tests we will be doing later in the year, as well as some news about how we will be handling non-pop culture communities-which was a big point of feedback from our last blog, and we thank you for that!
This is guaranteed by the use of carefully selected raw materials andmaterial processing according to GMP 2023/2006/EU as well as the migration tests performed on Ensinger semi-finished products.
All the specimens were cylindrical. To perform the migration tests, specimens of 50 mm in diameter and 100 mm in length were molded, from which 40 mm thick slices were cut, discarding the outer top and bottom parts in order to minimize heterogeneities and ensure water saturation.
Verification of compliance of migration into food simulants with the migration limits shall be carried out using conventional migration tests, the basic rules for which are laid down in the Annex to this Directive.
Directive 82/711/EEC lays down the basic rules necessary for testing migration of the constituents of plastic materials and articles and Council Directive 85/572/EEC(5)establishes the list of simulants to be used in the migration tests.
To comply with Article 2 and the Annex to Directive 82/711/EEC(OJ No L 297, 23.10.82)by indicating the appropriate simulants to carry out migration tests for plastic materials and articles intended to come into contact with foodstuffs.
The American ASTM C-1202/97 standard Standard Test Method for Electrical Indication of Concretes Ability to Resist Chloride Ion Penetration advocates the use of vacuum saturated samples before submission to migration tests.
Whereas, by virtue of Article 2( 3) of, together with the first indent of Chapter 1( 2)of the Annex to Directive 82/711/EEC, appropriate simulants to carry out migration tests should be indicated for plastic materials and articles intended to come into contact with a single foodstuff or a specific group of foodstuffs;
Then, the chloride penetration and the chloride migration tests on saturated concrete do not test or simulate the strength of activity of this product, although the hydrophobic agent has presented 13% of reduction in chloride diffusion coefficient. showed in their work, the use of goniometry technique for testing the hydrophobic capacity to increase the contact angle of water with the treated substrate, reducing the affinity for water.
Whereas Council Directive 82/711/EEC of 18 October 1982 laying down the basic rules necessary for testing migration of the constituents of plastic materials and articles intended to come into contact with foodstuffs(2), as amended by Directive 93/8/EEC(3),does not specify the migration tests to be carried out in cases where the fatty food simulants are inappropriate;
Whereas, in the current state of analytical techniques, it is not possible to determine all the conditions under which conventional migration tests should be performed on materials and articles consisting of two or more layers, one or more of which does not consist entirely of plastics; whereas a decision on the application of this Directive to such materials and articles should therefore be taken at a later date;
The migration test is based on the principle of applying a potential difference between two cells: one containing a chloride solution cathode and the other without chlorides anode, which are placed on each side of the concrete sample under analysis.
Some relevant developments have taken place concerning the validation of phthalates migration test methods and the comprehensive risk assessment of these phthalates under Council Regulation(EEC) No 793/93 of 23 March 1993 on the evaluation and control of the risks of existing substances4.