ASTM D789-19 PDF

Scope: 1.1 This test method covers the determination of relative viscosity as it applies to concentrated solutions of polyamide (PA). 1.2 This test method does not address measures of viscosity derived from measurements with dilute solutions. 1.3 The values stated in SI units are to be regarded as standard. The values given in brackets are for information only. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. NOTE 1—This standard and ISO 307 address the same subject, buy the technical content is different. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM D789-19 Referenced Document

ASTM D2162 Standard Test Method for Basic Calibration of Master Viscometers and Viscosity Oil Standards
ASTM D446 Standard Specifications and Operating Instructions for Glass Capillary Kinematic Viscometers
ASTM D6779 Standard Classification System for and Basis of Specification for Polyamide Molding and Extrusion Materials (PA)*， 2023-03-15 Update
ASTM D883 Standard Terminology Relating to Plastics*， 2024-02-01 Update
ASTM E1953 Standard Practice for Description of Thermal Analysis Apparatus
ASTM E2975 Standard Test Method for Calibration or Calibration Verification of Concentric Cylinder Rotational Viscometers*， 2023-01-01 Update
ISO 16396-1 Plastics — Polyamide (PA) moulding and extrusion materials — Part 1: Designation system and basis for specifications*， 2022-09-27 Update
ISO 307 Plastics — Polyamides — Determination of viscosity number
ISO/IEC 17025 General requirements for the competence of testing and calibration laboratories [Standard in French]

2019 ASTM D789-19 Standard Test Method for Determination of Relative Viscosity of Concentrated Polyamide (PA) Solutions
2018 ASTM D789-18 Standard Test Method for Determination of Relative Viscosity of Concentrated Polyamide (PA) Solutions
2015 ASTM D789-15 Standard Test Methods for Determination of Solution Viscosities of Polyamide (PA)
2007 ASTM D789-07e1 Standard Test Methods for Determination of Solution Viscosities of Polyamide (PA)
2007 ASTM D789-07 Standard Test Methods for Determination of Solution Viscosities of Polyamide (PA)
2006 ASTM D789-06a Standard Test Methods for Determination of Solution Viscosities of Polyamide (PA)
2006 ASTM D789-06 Standard Test Methods for Determination of Relative Viscosity of Polyamide (PA)
2005 ASTM D789-05 Standard Test Methods for Determination of Relative Viscosity of Polyamide (PA) ^1,2
2004 ASTM D789-04 Standard Test Method for Determination of Relative Viscosity of Polyamide (PA)
1998 ASTM D789-98 Standard Test Methods for Determination of Relative Viscosity and Moisture Content of Polyamide (PA)