ISO 175:2010
Plastics — Methods of test for the determination of the effects of immersion in liquid chemicals
ISO 175:2010 specifies a method of exposing test specimens of plastic materials, free from all external restraint, to liquid chemicals, and methods for determining the changes in properties resulting from such immersion. It does not cover environmental stress cracking (ESC) which is dealt with by the various parts of ISO 22088.
It only considers testing by immersion of the entire surface of the test specimen.
It is applicable to all solid plastics that are available in the form of moulding or extrusion materials, plates, tubes, rods or sheets having a thickness greater than 0,1 mm. It is not applicable to cellular materials.
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1 Scope
2 Normative references
3 Principle
4 General requirements and procedure
4.1 Test liquids
4.1.1 Choice of test liquid
4.1.2 Types of test liquid
4.2 Test conditions
4.2.1 Test temperatures
4.2.2 Measurement temperature
4.3 Immersion time
4.4 Test specimens
4.5 Conditioning
4.6 Procedure
4.6.1 Quantity of test liquid
4.6.2 Positioning of specimens
4.6.3 Rinsing and wiping
4.7 Expression of results
4.7.1 Numerical expression
4.7.2 Graphical expression
5 Determination of changes in mass, dimensions and appearance
5.1 General
5.2 Apparatus
5.2.1 For all tests
5.2.2 For determinations of changes in mass
5.3 Test specimens (see also 4.4)
5.3.1 Moulding materials
5.3.2 Extrusion compounds
5.3.3 Sheets and plates
5.3.4 Tubes and rods
5.3.4.1 Tubes
5.3.4.2 Rods
5.3.5 Profile sections
5.4 Determination of changes in mass)
5.4.1 Procedure
5.4.1.1 Conditioning
5.4.1.2 Measurement of initial mass
5.4.1.3 Measurement of mass immediately after removal from the liquid
5.4.1.4 Measurement of mass immediately after removal and after drying
5.4.1.5 Measurement of mass only after drying
5.4.2 Calculation and expression of results
5.5 Determination of changes in dimensions
5.5.1 Procedure
5.5.1.1 Conditioning
5.5.1.2 Measurement of initial dimensions
5.5.1.2.1 Square specimens
5.5.1.2.2 Rods and profile sections
5.5.1.2.3 Tubes
5.5.1.3 Measurement of initial volume
5.5.1.4 Immersion
5.5.1.5 Measurement of dimensions immediately after removal from the liquid
5.5.1.6 Measurement of dimensions immediately after removal and after drying
5.5.1.7 Measurement of dimensions only after drying
5.5.1.8 Measurement of volume of liquid absorbed
5.5.2 Calculation and expression of results
5.6 Determination of changes in colour or other appearance attributes
5.6.1 General
5.6.2 Procedure
5.6.3 Expression of results
6 Determination of changes in other physical properties
6.1 General
6.2 Apparatus
6.3 Test specimens
6.3.1 Shape and dimensions
6.3.2 Preparation
6.3.3 Number
6.4 Procedure
6.4.1 Conditioning and measurement of initial values
6.4.2 Measurement immediately after removal from the liquid
6.4.3 Measurement after removal and after drying
6.4.4 Measurement only after drying
6.5 Calculation and expression of results
7 Precision
8 Test report
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1 Scope
2 Normative references
3 Principle
4 General requirements and procedure
4.1 Test liquids
4.1.1 Choice of test liquid
4.1.2 Types of test liquid
4.2 Test conditions
4.2.1 Test temperatures
4.2.2 Measurement temperature
4.3 Immersion time
4.4 Test specimens
4.5 Conditioning
4.6 Procedure
4.6.1 Quantity of test liquid
4.6.2 Positioning of specimens
4.6.3 Rinsing and wiping
4.7 Expression of results
4.7.1 Numerical expression
4.7.2 Graphical expression
5 Determination of changes in mass, dimensions and appearance
5.1 General
5.2 Apparatus
5.2.1 For all tests
5.2.2 For determinations of changes in mass
5.3 Test specimens (see also 4.4)
5.3.1 Moulding materials
5.3.2 Extrusion compounds
5.3.3 Sheets and plates
5.3.4 Tubes and rods
5.3.4.1 Tubes
5.3.4.2 Rods
5.3.5 Profile sections
5.4 Determination of changes in mass)
5.4.1 Procedure
5.4.1.1 Conditioning
5.4.1.2 Measurement of initial mass
5.4.1.3 Measurement of mass immediately after removal from the liquid
5.4.1.4 Measurement of mass immediately after removal and after drying
5.4.1.5 Measurement of mass only after drying
5.4.2 Calculation and expression of results
5.5 Determination of changes in dimensions
5.5.1 Procedure
5.5.1.1 Conditioning
5.5.1.2 Measurement of initial dimensions
5.5.1.2.1 Square specimens
5.5.1.2.2 Rods and profile sections
5.5.1.2.3 Tubes
5.5.1.3 Measurement of initial volume
5.5.1.4 Immersion
5.5.1.5 Measurement of dimensions immediately after removal from the liquid
5.5.1.6 Measurement of dimensions immediately after removal and after drying
5.5.1.7 Measurement of dimensions only after drying
5.5.1.8 Measurement of volume of liquid absorbed
5.5.2 Calculation and expression of results
5.6 Determination of changes in colour or other appearance attributes
5.6.1 General
5.6.2 Procedure
5.6.3 Expression of results
6 Determination of changes in other physical properties
6.1 General
6.2 Apparatus
6.3 Test specimens
6.3.1 Shape and dimensions
6.3.2 Preparation
6.3.3 Number
6.4 Procedure
6.4.1 Conditioning and measurement of initial values
6.4.2 Measurement immediately after removal from the liquid
6.4.3 Measurement after removal and after drying
6.4.4 Measurement only after drying
6.5 Calculation and expression of results
7 Precision
8 Test report