Distribution date: 13 July 2018 | Final date for Comment: 11 September 2018

This Draft Uganda Standard describes test procedures for determining the degree of bleeding of traffic or pavement marking paints. A specific formulation for a solventborne traffic paint formulation is included as a potential bleeding reference control. The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

Products Covered: Traffic marking Paints; Pavement marking paints

Regulation Type: Regular notification

Distribution date: 13 July 2018 | Final date for Comment: 11 September 2018

This Draft Uganda Standard covers the determination of lead contents between 0.01 and 5 %, cadmium contents between 50 and 150 ppm (mg/kg), and cobalt contents between 50 and 2000 ppm (mg/kg) present in the nonvolatile portion of liquid coatings or contained in dried films. There is no reason to believe that higher levels of all three elements could not be determined by this test method, provided that appropriate dilutions and adjustments in specimen size and reagent quantities are made. Only pigmented coatings were used for evaluating this test method, but there is no reason to believe that varnishes and lacquers could not be analyzed successfully, provided that appropriate precautions are taken. This test method is not applicable to the determination of lead in samples containing antimony pigments (low recoveries are obtained). If lead is present in the sample to be analyzed in the form of an organic lead compound at a concentration greater than 0.1 %, small losses of lead may occur, resulting in slightly poorer precision than shown in Section.

Products Covered: Dried films

Regulation Type: Regular notification

Distribution date: 13 July 2018 | Final date for Comment: 11 September 2018

This Draft Uganda Standard covers the calculation, from instrumentally measured color coordinates based on daylight illumination, of color tolerances and small color differences between opaque specimens such as painted panels, plastic plaques, or textile swatches. Where it is suspected that the specimens may be metameric, that is, possess different spectral curves though visually alike in color, Practice D4086 should be used to verify instrumental results. The tolerances and differences determined by these procedures are expressed in terms of approximately uniform visual color perception in CIE 1976 CIELAB opponent-color space, CMC tolerance units, CIE94 tolerance units, the DIN99 color difference formula given in DIN 6176, or the new CIEDE2000 color difference units.

Products Covered: Painted panels, plastic plaques, textile swatches.

Regulation Type: Regular notification

Distribution date: 13 July 2018 | Final date for Comment: 11 September 2018

This Draft Uganda Standard covers the measurement of the retroreflective properties of horizontal pavement marking materials containing retroreflecting beads, such as traffic stripes and surface symbols, using a portable retroreflectometer that can be placed on the road delineation to measure the retroreflection at a prescribed geometry. The restriction to bead based materials is for the purpose of ensuring a sufficiently gradual optical response function (from points of the source aperture to points of the receiver aperture) to allow generous sized instrument source and receiver apertures. The entrance and observation angles of the retroreflectometer affect the readings. As specified by the European Committee for Standardization (CEN), the entrance and observation angles shall be 88.76° and 1.05°, respectively. This test method is intended to be used for field measurement of pavement markings but may be used to measure the performance of materials on sample panels before placing the marking material in the field.

Products Covered: Pavement marking materials

Regulation Type: Regular notification

Distribution date: 13 July 2018 | Final date for Comment: 11 September 2018

This Draft Uganda Standard covers the measurement of Krebs Unit (KU) viscosity to evaluate the consistency of paints and related coatings using the Stormer-type viscometer. The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

Products Covered: Paints and varnishes, incl. enamels and lacquers, based on synthetic polymers or chemically modified natural polymers, dispersed or dissolved in a non-aqueous medium; solutions of products of subheading 3901 to 3913 in volatile organic solvents, containing > 50% solvent by weight (excl. solutions of collodion) (HS code(s): 3208); Paints and varnishes, incl. enamels and lacquers, based on synthetic polymers or chemically modified natural polymers, dispersed or dissolved in an aqueous medium (HS code(s): 3209); Paints and varnishes (ICS code(s): 87.040)

Regulation Type: Regular notification

Distribution date: 13 July 2018 | Final date for Comment: 11 September 2018

This Draft Uganda Standard provides numbers that correlate with visual ratings of yellowness or whiteness of white and near-white or colorless object-color specimens, viewed in daylight by an observer with normal color vision. White textiles, paints, and plastics are a few of the materials that can be described by the indices of yellowness or whiteness calculated by this practice.  For a complete analysis of object colors, by a specified observer and under a specified illuminant, use of three parameters is required. For near-white specimens, however, it is often useful to calculate single-number scales of yellowness or whiteness. This practice provides recommended equations for such scales and discusses their derivations and uses, and limits to their applicability. The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

Products Covered: Textiles, paints, plastics.

Regulation Type: Regular notification

Distribution date: 13 July 2018 | Final date for Comment: 11 September 2018

This Draft Uganda Standard covers the determination, without reference to a material paint standard, of the hiding power of air dry coatings with Y tristimulus values greater than 15%. With appropriate modification, it can also be used to test baking finishes. The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

Products Covered: Paints and varnishes, incl. enamels and lacquers, based on synthetic polymers or chemically modified natural polymers, dispersed or dissolved in a non-aqueous medium; solutions of products of subheading 3901 to 3913 in volatile organic solvents, containing > 50% solvent by weight (excl. solutions of collodion) (HS code(s): 3208); Paints and varnishes, incl. enamels and lacquers, based on synthetic polymers or chemically modified natural polymers, dispersed or dissolved in an aqueous medium (HS code(s): 3209); Paints and varnishes (ICS code(s): 87.040)

Regulation Type: Regular notification

Distribution date: 13 July 2018 | Final date for Comment: 11 September 2018

This Draft Uganda Standard specifies requirements, methods of test and sampling for conventional solvent-borne and water-borne paints suitable for permanently marking traffic-bearing bituminous or concrete road and runway surfaces. The paint shall be reflectoried unless otherwise specified. It makes provision for white, yellow and red.  

Products Covered: Road marking paints, Runway marking paints

Regulation Type: Regular notification

Distribution date: 13 July 2018 | Final date for Comment: 11 September 2018

This Draft Uganda Standard describes a procedure for the determination of the weight percent volatile content of solventborne and waterborne coatings. Test specimens are heated at 110 ± 5°C for 60 min. Sixty minutes at 110 ± 5°C is a general purpose test method based on the precision obtained with both solventborne and waterborne coatings. This test method is viable for coatings wherein one or more parts may, at ambient conditions, contain liquid coreactants that are volatile until a chemical reaction has occurred with another component of the multi-package system. Test Method D5095 for Determination of the Nonvolatile Content in Silanes, Siloxanes and Silane-Siloxane Blends Used in Masonry Water Repellent Treatments is the standard method for nonvolatile content of these types of materials. Test Methods D5403 for Volatile Content of Radiation Curable Materials is the standard method for determining nonvolatile content of radiation curable coatings, inks and adhesives. Test Method D6419 for Volatile Content of Sheet-Fed and Coldset Web Offset Printing Inks is the method of choice for these types of printing inks. This test method may not be applicable to all types of coatings. Other procedures may be substituted with mutual agreement between the producer and the user.

Products Covered: Paints and varnishes, incl. enamels and lacquers, based on synthetic polymers or chemically modified natural polymers, dispersed or dissolved in a non-aqueous medium; solutions of products of subheading 3901 to 3913 in volatile organic solvents, containing > 50% solvent by weight (excl. solutions of collodion) (HS code(s): 3208); Paints and varnishes, incl. enamels and lacquers, based on synthetic polymers or chemically modified natural polymers, dispersed or dissolved in an aqueous medium (HS code(s): 3209); Paints and varnishes (ICS code(s): 87.040)

Regulation Type: Regular notification

Distribution date: 13 July 2018 | Final date for Comment: 11 September 2018

This Draft Uganda Standard covers the determination of the resistance of organic coatings to abrasion produced by the Taber Abraser on coatings applied to a plane, rigid surface, such as a metal panel. The values stated in SI units are to be regarded as the standard, with the exception of mils when determining coating thickness. This standard is similar in content (but not technically equivalent) to ISO 7784–2.

Products Covered: ORGANIC CHEMICALS (HS code(s): 29); Organic coatings (ICS code(s): 25.220.60)

Regulation Type: Regular notification