BS 5551-2.7:1988
Current
The latest, up-to-date edition.
Fertilizers. Sampling Recommendations for minimum mass of increment of a solid fertilizer to be taken to be representative of the total sampling unit
Hardcopy , PDF
English
30-09-1988
Important note : Users cannot be edited or removed once added to your Multi user PDF.NO CONTENTS SECTION
Contains some of the theoretical background to the derivation of formulae for calculating the minimum mass of an increment and gives examples of values in tables.
| Committee |
CII/37
|
| DevelopmentNote |
Supersedes 87/53554 DC. (08/2005)
|
| DocumentType |
Standard
|
| Pages |
10
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
When sampling is carried out on a batch of fertilizer, an increment is taken from N units. Each of these increments may be taken either by means of partial sampling devices, if their validity (absence of any particular bias) is assured, or by treating the complete item with a suitable reduction device (absence of bias).
This British Standard specifies, for the latter case, the extent of mass reduction beyond which the error in the representativity of the increment can no longer be ignored. It may also be used to establish the minimum mass of any intermediate increment during the treatment of the sample, up to analysis. Where partial sampling devices are used, this limiting mass can be much more important.
| BS 5551-2.9:1991 | Fertilizers. Sampling Sampling plan for the evaluation of a large delivery of solid fertilizer |
| BS 5551-2.5:1989 | Fertilizers. Sampling Method for reduction of samples of solid fertilizers |
| BS 5551-2.8:1991 | Fertilizers. Sampling Methods for preparation of samples of solid fertilizer for chemical and physical analysis |
| BS 5551-2.1:1993 | Fertilizers. Sampling Simple sampling method for small lots of solid fertilizer |
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.