BS 6127-4:1990
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Petrographic analysis of bituminous coal and anthracite Method of determining microlithotype, carbominerite and minerite composition
Hardcopy , PDF
18-09-2017
English
28-02-1990
National foreword
Committees responsible
Method
0. Introduction
1. Scope and field of application
2. References
3. Definitions
4. Principle
5. Material
6. Apparatus
7. Procedure
8. Expression of results
9. Precision
10. Test report
Tables
1. Maximum permissible number of intersections falling
on mineral matter for the point to be classified
as a microlithotype
2. Delimitation of microlithotypes
3. Delimitation of carbominerite (excluding carbopoly-
minerite with sulfide) and minerite
4. Delimitation of carbopolyminerite with sulfide
5. An example of a method of expressing the results
6. Nature of coal associated with carbominerite and
minerite (example)
7. Theoretical standard deviation and repeatability
of the percentage of a component based on 500 point
counts
Figures
1. Design of grid for microlithotype analysis
2. Criteria used to determine the categories of
accepted and rejected points
Important note : All end users must be registered with an Account prior to user licenses being assigned.Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.