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AS 2341.3:2020 pdf free

AS 2341.3:2020 pdf free.Methods of testing bitumen and related roadmaking products
The objective of this Test Method is to specify procedures for the determination of kinematic viscosity of bituminous materials having kinematic viscosities in the range 6 mm2/s to 100 000 mm2/s (approximate dynamic viscosities 0.006 Pa.s to 100 Pa.s) using four different types of reverse flow capillary tube viscometers.
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
This Test Method covers procedures for the determination of the kinematic viscosity of cutback bitumens (referred to as “liquid asphalts”], flux oils (referred to as “road oils”) and the distillation residues of cutback bitumens at 60 °C. It also covers procedures for the characterization of kinematic viscosity of bitumens (referred to as “liquid asphalt binders”) at 135 °C. It is applicable in the kinematic viscosity range from 6 mm2/s to 100 000 mm2/s [cSt]. This kinematic viscosity range is approximately equal to a viscosity range of 0.006 Pa.s to 100 Pa.s.
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.
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 free download.

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