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BS 2782-7:Method 732F:1991

Current
Current

The latest, up-to-date edition.

Methods of testing plastics. Rheological properties Determination of viscosity number of methyl methacrylate polymers
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

28-06-1991

National foreword
Committees responsible
Method
1. Scope
2. Normative references
3. Definitions and units
4. Principle
5. Measurements
6. Apparatus
7. Solvent and test solution
8. Temperature of measurement
9. Procedure
10. Expression of results
11. Test report
Annexes
A. Calibration of the viscometer
B. Determination of the limiting viscosity number
C. Bibliography
Figure
A.1 Kinetic energy correction as a function of the
     reciprocal of efflux time

Method for determination in dilute solution.

This part of ISO 1628 specifies the conditions to be used for the determination of the viscosity number of methyl methacrylate polymer moulding and extrusion materials in dilute solution.

It applies to methyl methacrylate (MMA) homopolymers and copolymers, and mixtures of the two with a minimum of 80 % (m/m) of MMA and up to 20 % (m/m) of other monomers, with and without additives, as defined in ISO 8257-1.

NOTE The dilute-solution viscosity of polymers can be also expressed as a limiting viscosity number [η] (see Annex B).

Committee
PRI/82
DevelopmentNote
Also numbered as ISO 1628-6 Supersedes 87/38634 DC (06/2005) Reviewed and confirmed by BSI, October 2007. (09/2007)
DocumentType
Standard
Pages
12
PublisherName
British Standards Institution
Status
Current

BS 7825-3.7:1998 Calibration of rubber and plastics test equipment. Calibration schedules Rheological properties

BS 1752:1983 Specification for laboratory sintered or fritted filters including porosity grading
BS 2782-7 Method 732A:1991 Methods of testing plastics. Rheological properties Determination of viscosity number:general conditions
ISO 8257-1:1998 Plastics Poly(methyl methacrylate) (PMMA) moulding and extrusion materials Part 1: Designation system and basis for specifications
ISO 3105:1994 Glass capillary kinematic viscometers — Specifications and operating instructions

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