AS 2341.3:2020 pdf free.Methods of testing bitumen and related roadmaking products Method 3: Determination of kinematic viscosity by flow through a capillary tube.
3 Normative references
The following normative document is referred to in this Standard in addition to those referenced in ASTM D2170/D2170M-18. The following document is referred to in the text in such a way that some or all of its content constitutes requirements of this Standard.
AS/NZS 2341.21, Method of testing bitumen and related roadmaking products, Method 21: Sample preparation
4 Terms and definitions
For the purpose of this document the terms and definitions in this Test Method and ASTM D2170/D2170M-18 apply.
4.1 may indicates the existence of an option
4.2 shall indicates that a statement is mandatory
4.3 should indicates a recommendation
5 Operation
The requirements of ASTM D2170/D2170M-18 shall apply subject to the modifications set out in Appendix A for Australian conditions.(b] For determinations at 135 °C – ASTM Kinematic Viscosity Thermometer 110C (IP 93C] as specified in ASTM E1. NOTE 3(A)- Other thermometric devices are permissible provided that their accuracy, precision and sensitivity are equal to or better than those of the thermometer prescribed. Delete clause, including Note 4. Delete clause, including Note 5. Delete clause, including Note 6. 1 Delete last sentence and replace with the following: . The efficiency of the stirring and the balance between heat losses and heat input shall be such that the temperature of the bath medium does not vary by more than +0.1 °C over the length of the viscometer, or from viscometer to viscometer in the various bath positions. 2 Delete Note 7 text and replace with the following: Water is a suitable bath medium for determinations at 60 °C. Transparent paraffinic or silicone oils with a suitably high flashpoint (> 215 °C) have been found suitable for determinations at 135 °C.The following procedure has been found satisfactory for cleaning the viscometer. Remove the viscometer from the bath, invert it and hang it in the oven until the bitumen is drained thoroughly from it. The viscometer can then thoroughly be cleaned by washing with an appropriate solvent completely miscible with the sample, followed by, where necessary, a completely volatile solvent (cleaning agents are available commercially). The tube can be dried by sucking a slow stream of room air, through the capillary for at least 2 min.AS 2341.3 pdf download.