18/30335365 DC : 0
Current
The latest, up-to-date edition.
BS EN ISO 307 - PLASTICS - POLYAMIDES - DETERMINATION OF VISCOSITY NUMBER
Hardcopy , PDF
English
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents and materials
6 Apparatus
7 Preparation of test samples
8 Calculation of test portion
9 Selection of solvent
10 Procedure
11 Expression of results
12 Repeatability and reproducibility
13 Relationship between the viscosity number determined
in 96% (by mass) sulfuric acid solution and the viscosity
determined in various solvents
14 Test report
Annex A (informative) - Determination of the concentration of
commercial sulfuric acid (95% to 98%) and adjustment
to 96% by titration
Annex B (informative) - Determination of the concentration of
sulfuric acid (95% to 98%) and adjustment to 96% by
flow time measurement in a small capillary viscometer
Annex C (informative) - Determination of the concentration of
commercial formic acid and adjustment to 90% by titration
Annex D (informative) - Determination of the concentration of
commercial formic acid and adjustment to 90% by
density measurement
Annex E (informative) - Relationship between the viscosity
number determined in 96% (by mass) sulfuric acid
solution and the viscosity determined in various
solvents acid, 90% (by mass) formic acid and
m-cresol
Bibliography
BS EN ISO 307.
| Committee |
PRI/82
|
| DocumentType |
Draft
|
| Pages |
42
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| ISO 1628-1:2009 | Plastics Determination of the viscosity of polymers in dilute solution using capillary viscometers Part 1: General principles |
| ISO 1042:1998 | Laboratory glassware — One-mark volumetric flasks |
| ISO 16396-1:2015 | Plastics — Polyamide (PA) moulding and extrusion materials — Part 1: Designation system, marking of products and basis for specifications |
| ISO 15512:2016 | Plastics Determination of water content |
| ISO 3105:1994 | Glass capillary kinematic viscometers — Specifications and operating instructions |
| ISO 3451-4:1998 | Plastics — Determination of ash — Part 4: Polyamides |
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