ISO 8124-7:2015 pdf free

ISO 8124-7:2015 pdf free.Safety of toys一Requirements and test methods for finger paints
Dyes are intensely coloured or fluorescent organic substances only, which impart colour to a substrate by selective absorption of light. They are soluble and/or go through an application process which, at least temporarily, destroys any crystal structure by absorption, solution, and mechanical retention, or by ionic or covalent chemical bonds.
Pigments are coloured, black, white or fluorescent particulate organic or inorganic solids which usually are insoluble in, and essentially physically and chemically unaffected by, the vehicle or substrate in which they are incorporated. They alter appearance by selective absorption and/or by scattering of light. Pigments are usually dispersed in vehicles or substrates for application, as for instance in the manufacture or inks, paints, plastics or other polymeric materials. Pigments retain a crystal or particulate structure throughout the coloration process.
The use of appropriate preservatives in water-based systems like finger paints is necessary in order to provide protection against the growth of bacteria, fungi and yeasts and maintain a hygienic compound.Preservatives allowed for use in finger paints are listed in Annex D. The following properties were taken into consideration when drafting this list: high efficacy with respect to micro-organisms accompanied by suitable toxicological performance (e.g. low human toxicity, low volatility, low odour), suitable technical performance (e.g. solubility in water-based systems, stability against other ingredients,stability against chemical or physical influences) and suitable environmental performance [e.g. low adsorbable organic halogens (AOX), low persistence]. The list includes, for example, preservatives that are allowed for cosmetic use or for food use.
Table 1 lists the four primary aromatic amines which shall not be determinable in finger paints at the limit of quantification (LOQ) using the method described in Annex C using GC-MS as the detection technique. Table 2 lists 24 primary aromatic amines which were taken from Table 2 of EN 71-7:2014 entitled “Other carcinogenic primary aromatic amines (non-exhaustive list)”. Therefore, the listing of primary aromatic amines in Table 2 of this part of ISO 8124 has been described as a non-exhaustive list and does not preclude other primary aromatic amines from being analysed. The information provided in Chromatography (C.6.5) and Precision (C.8) includes the four primary aromatic amines listed in Table 1,and 18 primary aromatic amines from Table 2. The inclusion of 18 rather than all 23 primary aromatic amines in Table 2 reflects the difficulty in obtaining the suitable commercial standards at the time of writing this part of ISO 8124. The information in C.5 and C.8 should provide the competent analyst with indicative information in the determination of other primary aromatic amines where/when calibration standards are available. The limitation for primary aromatic amines does not apply to aromatic aminocarboxylic acids or aminosulfonic acids because they are considered to be harmless.ISO 8124-7 pdf free download.