BS 7755-4.4.2(1997) : 1997
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
SOIL QUALITY - BIOLOGICAL METHODS - EFFECTS OF POLLUTANTS ON MICROBES - DETERMINATION OF SOIL MICROBIAL MASS - FUMIGATION-EXTRACTION METHOD
Hardcopy , PDF
30-09-2011
English
01-01-1997
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Defines a method of estimating microbial biomass of soils by measuring the total extractable organic biomass material largely from freshly killed microorganisms. Also applies to estimating microbial nitrogen and ninhydrin-reactive nitrogen in soil, but covers only measurement of extractable organic carbon. The fumigation-extraction method applies only to aerobic and anaerobic soils which contain actively decomposing substrates and soils supersaturated with potassium sulfate solution.
| Committee |
EH/4
|
| DevelopmentNote |
Supersedes 95/520606 DC (10/2005) Renumbered & superseded by BS EN ISO 14240-2. (09/2011)
|
| DocumentType |
Standard
|
| Pages |
18
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| 10/30205348 DC : 0 | BS 10175 - INVESTIGATION OF POTENTIALLY CONTAMINATED SITES - CODE OF PRACTICE |
| ISO 10381-6:2009 | Soil quality Sampling Part 6: Guidance on the collection, handling and storage of soil under aerobic conditions for the assessment of microbiological processes, biomass and diversity in the laboratory |
| ISO 11274:1998 | Soil quality Determination of the water-retention characteristic Laboratory methods |
| ISO 10390:2005 | Soil quality Determination of pH |
| ISO 10694:1995 | Soil quality — Determination of organic and total carbon after dry combustion (elementary analysis) |
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