Buried Services
(sieve & mechanical analysis)
Description:
- Particle Size Distribution by Wet sieve analysis (BS EN ISO 17892-4:2016, clause 5.2)
- Particle Size Distribution by Dry sieve analysis (BS EN ISO 17892-4:2016, clause 5.2)
- Mechanical analysis by Hydrometer method (BS EN ISO 17892-4:2016, clause 5.3)
- Mechanical analysis by Pipette method (BS EN ISO 17892-4:2016, clause 5.4)
Results given:
- Grading of material (% of each particle size)
- Percentages of clay and silt fractions (if pipette or hydrometer analysis performed)
You provide:
- Specify if pipette analysis is required to individually determine clay and silt content
- If pipette or hydrometer analysis is specified, what quantities of fine material (passing 63μm sieve, clay and silt) needs to be present to require the pipette or hydrometer analysis to be performed (eg. Only if >10% fines present)
Typical use(s):
- Basic classification of material according to its particle size
Material required:
Depends on particle size. For not more than 10% of the following sizes, uses the corresponding sample mass –
Size Sample Mass
63mm 40kg
50mm 35kg
37.5mm 14kg
28mm 6kg
20mm 2kg
14mm 1kg
10mm 500g
6.3mm 300g
3.35mm 200g
<2mm 100g
(Atterberg Limits)
Description:
- Liquid and plastic limits of soil – 4 point cone penetrometer method
(BS EN ISO 17892-12: Clauses 5:3 and 5:5 : 2018)
- Liquid and plastic limits of soil – 1 point cone penetrometer method
(BS EN ISO 17892-12: Clauses 5:3 and 5:5: 2018)
Results given:
- Liquid limit
- Plastic limit
- Plasticity index
- % retained on 425μm sieve
You provide:
Specify which method is required –
- 1 point
- 4 point
Typical uses(s):
- Basic classification of material according to its behaviour
Material required:
- Enough sample to provide 300g of material passing a 425μm sieve