Distribution date: 15 October 2018 | Final date for Comment: 14 December 2018

This Draft Uganda Standard covers the test method for the measurement of the yield stress and viscosity of engine oils after cooling at controlled rates over a period exceeding 45 h to a final test temperature between –10 °C and –40 °C. The precision is stated for test temperatures from –40 °C to –15 °C. The viscosity measurements are made at a shear stress of 525 Pa over a shear rate of 0.4 s–1 to 15 s-1. This test method is suitable for measurement of viscosities ranging from 4000 mPas to >400 000 mPas, and is suitable for yield stress measurements of 7 Pa to >350 Pa. This test method is applicable for used diesel oils. The applicability and precision to other used or unused engine oils or to petroleum products other than engine oils has not been determined.  

Products Covered: Engine oils

Regulation Type: Regular notification

Distribution date: 15 October 2018 | Final date for Comment: 14 December 2018

This Draft Uganda Standard covers an estimation of the amount of engine oil volatilized at 371°C (700°F). This test method can also be used to estimate the amount of oil volatilized at any temperature between 126°C and 371°C, if so desired. This test method is limited to samples having an initial boiling point (IBP) greater than 126°C (259°F) or the first calibration point and to samples containing lubricant base oils with end points less than 615°C (1139°F) or the last n-paraffins in the calibration mixture. By using some instruments and columns, it is possible to extend the useful range of the test method. The test method uses the principles of simulated distillation methodology and may be applied to both lubricant oil base stocks and finished lubricants containing additive packages. These additive packages generally contain high molecular weight, nonvolatile components that do not elute from the chromatographic column under the test conditions. The calculation procedure used in this test method assumes that all of the sample elutes from the column and is detected with uniform response. This assumption is not true for samples with nonvolatile additives, and application of this test method under such conditions will yield results higher than expected. For this reason, results by this test method are reported as area percent of oil.

Products Covered: Automotive Engine Oil

Regulation Type: Regular notification

Distribution date: 15 October 2018 | Final date for Comment: 14 December 2018

This Draft Uganda Standard covers an estimation of the amount of engine oil volatilized at 371°C (700°F). This test method can also be used to estimate the amount of oil volatilized at any temperature between 126°C and 371°C, if so desired. This test method is limited to samples having an initial boiling point (IBP) greater than 126°C (259°F) or the first calibration point and to samples containing lubricant base oils with end points less than 615°C (1139°F) or the last n-paraffins in the calibration mixture. By using some instruments and columns, it is possible to extend the useful range of the test method. The test method uses the principles of simulated distillation methodology and may be applied to both lubricant oil base stocks and finished lubricants containing additive packages. These additive packages generally contain high molecular weight, nonvolatile components that do not elute from the chromatographic column under the test conditions. The calculation procedure used in this test method assumes that all of the sample elutes from the column and is detected with uniform response. This assumption is not true for samples with nonvolatile additives, and application of this test method under such conditions will yield results higher than expected. For this reason, results by this test method are reported as area percent of oil.

Products Covered: Automotive Engine Oil

Regulation Type: Regular notification

Distribution date: 15 October 2018 | Final date for Comment: 14 December 2018

This Draft Uganda Standard covers and is commonly referred to as the Sequence VG test, and it has been correlated with vehicles used in stop-and-go service prior to 1996, particularly with regard to sludge and varnish formation. It is one of the test methods required to evaluate oils intended to satisfy the API SL performance category.

Products Covered: Automotive Engine Oils

Regulation Type: Regular notification

Distribution date: 15 October 2018 | Final date for Comment: 14 December 2018

This Draft Uganda Standard covers and is commonly referred to as the Sequence VG test, and it has been correlated with vehicles used in stop-and-go service prior to 1996, particularly with regard to sludge and varnish formation. It is one of the test methods required to evaluate oils intended to satisfy the API SL performance category.

Products Covered: Automotive Engine Oils

Regulation Type: Regular notification

Distribution date: 15 October 2018 | Final date for Comment: 14 December 2018

This Draft Uganda Standard covers four procedures for determining the evaporation loss of lubricating oils (particularly engine oils). Procedure A uses the Noack evaporative tester equipment; Procedure B uses the automated non-Woods metal Noack evaporative apparatus; Procedure C uses Selby-Noack volatility test equipment, and Procedure D uses the Noack S2 test equipment. The test method relates to one set of operating conditions but may be readily adapted to other conditions when required. Noack results determined using Procedures A and C provide equivalent results and Procedures B and D provide equivalent results. However, A/C compared to B/D show consistent differences. Procedure A/C give slightly lower results versus Procedure B/D on formulated engine oils, while Procedure A/C give higher results versus Procedure B/D on base stocks.  

Products Covered: Lubricating oils

Regulation Type: Regular notification

Distribution date: 15 October 2018 | Final date for Comment: 14 December 2018

This Draft Uganda Standard covers four procedures for determining the evaporation loss of lubricating oils (particularly engine oils). Procedure A uses the Noack evaporative tester equipment; Procedure B uses the automated non-Woods metal Noack evaporative apparatus; Procedure C uses Selby-Noack volatility test equipment, and Procedure D uses the Noack S2 test equipment. The test method relates to one set of operating conditions but may be readily adapted to other conditions when required. Noack results determined using Procedures A and C provide equivalent results and Procedures B and D provide equivalent results. However, A/C compared to B/D show consistent differences. Procedure A/C give slightly lower results versus Procedure B/D on formulated engine oils, while Procedure A/C give higher results versus Procedure B/D on base stocks.  

Products Covered: Lubricating oils

Regulation Type: Regular notification

Distribution date: 15 October 2018 | Final date for Comment: 14 December 2018

This Draft Uganda Standard covers the procedure for determining the foaming characteristics of lubricating oils (specifically transmission fluid and motor oil) at 150°C.

Products Covered: Lubricating oils

Regulation Type: Regular notification

Distribution date: 15 October 2018 | Final date for Comment: 14 December 2018

This Draft Uganda Standard covers the procedure for determining the foaming characteristics of lubricating oils (specifically transmission fluid and motor oil) at 150°C.

Products Covered: Lubricating oils

Regulation Type: Regular notification

Distribution date: 17 October 2018 | Final date for Comment: 16 December 2018

This Draft Uganda Standard covers test method for the required procedures to evaluate the comparative ability of rubber and rubber-like compositions to withstand the effect of liquids. It is designed for testing: (1) specimens of vulcanized rubber cut from standard sheets (see Practice D3182), (2) specimens cut from fabric coated with vulcanized rubber (see Test Methods D751), or (3) finished articles of commerce (see Practice D3183). This test method is not applicable to the testing of cellular rubbers, porous compositions, and compressed sheet packing, except as described in 12.2.2.

Products Covered: RUBBER AND ARTICLES THEREOF (HS code(s): 40); Rubber (ICS code(s): 83.060)

Regulation Type: Regular notification