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PAINTS AND VARNISHES - COATING POWDERS - PART J5: DETERMINATION OF FLOW PROPERTIES OF A POWDER/AIR MIXTURE (ISO 8130-5:1992 (2007), IDT)
MS 133: PART J5:2008
Status : Withdrawn
Format : PDF

This part of ISO 8130 specifies a method for determining the now properties of a mixture of coating
powder and air. The method reflects commercial
practice in powder spraying (see "Bibliog ....Read more raphy",
annex B).
The results obtained are influenced by the composition of the coating powder, its density, particle size
distribution and particle shape, together with the
tendency of the particles to agglomerate and to accept a triboelectric charge.
NOTE 1 It is well known that the transport and spraying
characteristics of powders are highly dependent on their
flow properties in bulk and In air. The procedure described
in this method is considered to be more meaningful than
the "flow angle" approach sometimer used to evaluate
bulk flow properties . In the latter, the angle of the cone
formed when a powder is allowed to flow through a vertical funnel on to a horizontal surface is measured . A given
mass of powder with good flow properties forms a
shallower cone than an equal mass of a powder with
poorer flow . The objections to the flow angle method are
that it is difficult to obtain a precise measurement and that
the powder is used alone, whereas during application it is
mixed with air Close

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PAINTS AND VARNISHES - COATING POWDERS - PART J4: CALCULATION OF LOWER EXPLOSION LIMIT (ISO 8130-4:1992 (2007), COR. 1:1993, IDT)
MS 133: PART J4:2008
Status : Withdrawn
Format : PDF

This part of ISO 8130 specifies a method for the calculation of the lower explosion limit of a coating
powder, i.e. the minimum concentration of the coating powder in air which will form an expl ....Read more osive mixture. It is based on the knowledge of the gross
calorific value of the product, as determined by the
method described in ISO 1928, or on the gross
calorific values of the constituents of the product.
Reliable methods for the measurement of this
quantity require the use of special apparatus which
may not be readily available, A method for determining the explosion indices of combustible dusts in
air is given in ISO 6184-1. This method is, however,
very intricate, requires considerable expertise and
is expensive. The calculation method leads to lower
explosion limits which have been proved in practice
to be satisfactory when applied to coating application plants.
NOTES
i With powders that are not flammable, such as those
of the poly(vinyl chloride) type, the method may nevertheless give a value for the lower explosion limit in air.
Thus, any underestimation of an explosion risk is effectively avoided.
2 The calculation used In this International Standard is
based on the following assumptions:
a) that material exists in the form of a molecular dispersion;
b) that there is complete combustion of the material to
the highest oxidation level;
c) that there is an adiabatic type of reaction;
d) that the flame temperature for the composition with
which the minimum concentration for explosion in air
is attained is 1 000 °C Close

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PAINTS AND VARNISHES - EVALUATION OF DEGRADATION OF COATINGS - DESIGNATION OF QUANTITY AND SIZE OF DEFECTS, AND OF INTENSITY OF UNIFORM CHANGES IN APPEARANCE - PART H10: ASSESSMENT OF DEGREE OF FILIFORM CORROSION (ISO 4628-10:2003, IDT)
MS 133: PART H10:2008
Status : Original
Format : PDF

This part of ISO 4628 describes a method for assessing the amount of filiform corrosion developed from a
scribed mark by measuring the length of the longest filament L and the most frequent leng ....Read more th M of the filaments.
Pictorial examples provided in Annex A of this part of ISO 4628 illustrate different ratings for the length of the
longest filament L and the most frequent length M of the filaments. A comparison of the test panels with the
12 pictures in Annex A does not supersede the obligatory numerical assessment (method 1 or 2). Close

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PAINTS AND VARNISHES - EVALUATION OF DEGRADATION OF COATINGS - DESIGNATION OF QUANTITY AND SIZE OF DEFECTS, AND OF INTENSITY OF UNIFORM CHANGES IN APPEARANCE - PART H1: GENERAL INTRODUCTION AND DESIGNATION SYSTEM (FIRST REVISION) (ISO 4628-1:2003, IDT)
MS 133: PART H1:2008
Status : 1st Revision
Format : PDF

This part of ISO 4628 defines a system for designating the quantity and size of defects and the intensity of
changes in appearance of coatings and outlines the general principles of the system u ....Read more sed throughout
ISO 4628. This system is intended to be used, in particular, for defects caused by ageing and weathering, and
for uniform changes such as colour changes, for example yellowing.
The other parts of ISO 4628 provide pictorial standards or other means of evaluating particular types of defect.
As far as possible, already existing evaluation schemes have been used as the basis.
This part of ISO 4628 can also be used for assessing defects not covered by the other parts of ISO 4628. Close

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PAINTS AND VARNISHES - DETERMINATION OF RESISTANCE TO CYCLIC CORROSION CONDITIONS - PART F19: WET (SALT FOG)/DRY/HUMIDITY/UV LIGHT (ISO 11997-2:2000 (2005), IDT)
MS 133: PART F19:2008
Status : Withdrawn
Format : PDF

This part of ISO 11997 is one of a series of standards dealing with the sampling and testing of paints, varnishes and
related products.
It specifies a test method of determining resistance ....Read more of coatings to a defined cycle of wet (salt fog)/dry/humidity/
UV light conditions using a specified solution. Close

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PAINTS AND VARNISHES - NATURAL WEATHERING OF COATINGS - PART F6: EXPOSURE AND ASSESSMENT (FIRST REVISION) (ISO 2810:2004, IDT)
MS 133: PART F6:2008
Status : 1st Revision
Format : PDF

This International Standard specifies the conditions which need to be taken into consideration in the selection
of the type of natural weathering and the natural weathering procedure to be used ....Read more to determine the resistance
of coatings or coating systems (direct weathering or weathering behind window glass).
Natural weathering is used to determine the resistance of coatings or coating systems (denoted in the following
text simply by coatings) to the sun's radiation and the atmosphere.
Special atmospheric influences, e.g. industrial pollution, are not taken into account in this International
Standard. Close

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PAINTS AND VARNISHES - EVALUATION OF DEGRADATION OF COATINGS - DESIGNATION OF QUANTITY AND SIZE OF DEFECTS, AND OF INTENSITY OF UNIFORM CHANGES IN APPEARANCE - PART H5: ASSESSMENT OF DEGREE OF FLAKING (FIRST REVISION) (ISO 4628-5:2003, IDT)
MS 133: PART H5:2008
Status : 1st Revision
Format : PDF

This part of ISO 4628 describes a method for assessing the degree of flaking of coatings by comparison with
pictorial standards, using the designation system defined in ISO 4628-1.
ISO 462 ....Read more 8-1 defines the system used for designating the quantity and size of defects and the intensity of
changes in appearance of coatings and outlines the general principles of the system. This system is intended
to be used, in particular, for defects caused by ageing and weathering, and for uniform changes such as
colour changes, for example yellowing. Close

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PAINTS AND VARNISHES - COATING POWDERS - PART J12: DETERMINATION OF COMPATIBILITY (ISO 8130-12:1998 (2003), IDT)
MS 133: PART J12:2008
Status : Withdrawn
Format : PDF

This Malaysian Standard is one of a series of standards dealing with the sampling and testing of paints and varnishes and related products.

It specifies a method for determination of the ....Read more tendency for the mixing of two different coating powders to result in the deterioration of the surface quality of the final coating. The results depend on the following characteristics of the coating powders:
a) their chemical reactivity;
b) their chemical composition;
c) their melt properties.

The onset of the deterioration in appearance, its nature and its extent will depend greatly on the ratio in which the powders are mixed. The test is useful in predicting the possibility of incompatibility arising from mixing different powders both during the manufacturing process and during the application of the coating powder.The nature of the deterioration in surface appearance may manifest itself in various ways, including:
- change in gloss level;
- the presence of pinholes, including micro-pinholes;
- th Close

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PAINTS AND VARNISHES - EVALUATION OF DEGRADATION OF COATINGS - DESIGNATION OF QUANTITY AND SIZE OF DEFECTS, AND OF INTENSITY OF UNIFORM CHANGES IN APPEARANCE - PART H7: ASSESSMENT OF DEGREE OF CHALKING BY VELVET METHOD (ISO 4628-7:2003, IDT)
MS 133: PART H7:2008
Status : Original
Format : PDF

This part of ISO 4628 describes a method suitable, in particular, for rating the degree of chalking on white or
coloured exterior coatings and coating systems on rough surfaces (i.e. those havin ....Read more g a roughness greater than
segment 4 of reference comparator G as described in ISO 8503-1).
The test method specified may also be used for the assessment of the degree of chalking of coatings and
coating systems on smooth surfaces, but the method specified in ISO 4628-6 is preferable for this purpose.
The test method is applicable to coatings and coating systems on mineral substrates, e.g. fibre cement, brick,
concrete and renderings, independent of the structure of the surface. The method can be used quite
effectively by experienced operators and is recommended for laboratory use as well as for on-site evaluation.
NOTE 1 When a reference to this test method is included in specifications, the test conditions (i.e. weathering method
and substrate) should be agreed between the interested parties.
NOTE 2 The method described in this part of ISO 4628 is a relative ranking method and is therefore not suitable for
use in agreements between parties. See, however, the Note to Table 1.
ISO 4628-1 defines the system used for designating the quantity and size of defects and the intensity of
changes in appearance of coatings and outlines the general principles of the system. This system is intended
to be used, in particular, for defects caused by ageing and weathering, and for uniform changes such as
colour changes, for example yellowing Close

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PAINTS AND VARNISHES - EVALUATION OF DEGRADATION OF COATINGS - DESIGNATION OF QUANTITY AND SIZE OF DEFECTS, AND OF INTENSITY OF UNIFORM CHANGES IN APPEARANCE - PART H6: ASSESSMENT OF DEGREE OF CHALKING BY TAPE METHOD (ISO 4628-6:2007, IDT)
MS 133: PART H6:2008
Status : Original
Format : PDF

This part of ISO 4628 provides pictorial reference standards for designating the degree of chalking of paint
coatings. It also describes a method by which the degree of chalking is rated. In usi ....Read more ng this method, it is
essential that care be taken to distinguish between true degradation products and adhering dirt, particularly
when chalking is slight. Close

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