Paints and varnishes. Testing of formaldehyde-emitting coatings and melamine foams. Determination of the steady-state concentration of formaldehyde in a small test chamber (ISO 15234:1999)
Tuote ladattavissa hetiToimitusaika on noin 1 - 2 työpäivääToimitusaika on 3 - 5 työpäivää.
This International Standard specifies a test method for determining the equilibrium concentration of formaldehydefrom formaldehyde-emitting coatings and melamine foams in a small test chamber.It describes the determination of the equilibrium concentration of formaldehyde that is established in air at 23 °C and50 % relative humidity. The test closely simulates practical conditions and can be performed on a laboratory scale.Good correlation is obtained with values obtained on samples of the same material in a 40 m3 test chamber. Themethod, which is simple to perform, is therefore suitable for the preliminary determination of limits that have to beadhered to.
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Sisällysluettelo
Foreword
1 Scope
2 Normative references
3 Definitions
4 Principle
5 Choice of method for determination of formaldehyde
6 Apparatus
7 Reagents
8 Preparation of specimens
9 Procedure
9.1 Number of determinations
9.2 Treatment of specimens
9.3 Determination of formaldehyde
10 Expression of results
11 Precision
12 Test report
Annex A Preparation of specimens from paints, varnishes and similar coating materials (normative)
Annex B Preparation of specimens from melamine foams (normative)
ISO 3270:1984 Paints and varnishes and their raw materials -- Temperatures and humidities for conditioning and testing
ISO 3696:1987 Water for analytical laboratory use -- Specification and test methods
ISO 3270:1984 Paints and varnishes and their raw materials -- Temperatures and humidities for conditioning and testing
ISO 3696:1987 Water for analytical laboratory use -- Specification and test methods