BS 8601:2013 pdf free.Specification for subsoil and requirements for use.
BS 8601 This British Standard specifies requirements for the classification, composition and use of subsoils that are moved or traded for creating soil profiles intended to support plant growth. The standard is not applicable to topsoil, or to subsoil that is to remain in situ. It is not intended to preclude the use of subsoil that is already on site and suitable for its intended purpose. This standard specifies requirements for multipurpose subsoil, which is fit for the majority of needs, and also specific purpose subsoils that are acidic or calcareous, for specialist use where acidic or calcareous soil profiles are required. It also specifies requirements for sampling and analysis of subsoil.The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.BS 7755-5.6:1999 (ISO 11272:1998), Soil quality- Part 5: Physical methods -Section 5.6: Determination of dry bulk density BS EN 12579:2000, Soil improvers and growing media – Sampling BS EN IsO 3696:1995, Water for analytical laboratory use – Specification and test methods BS IsO 10390:2005, Soil quality – Determination of pH BS IsO 11277:2009, Soil quality – Determination of particle size distribution in mineral soil material – Method by sieving and sedimentation BS IsO 16729:2013, Soil quality – Digestion of nitric acid soluble fractions of elements.The subsoil shall be classified as multipurpose subsoil or specific purpose subsoil.Specific purpose subsoil shall be further classified as acidic or calcareous.NOTE 1 If correctly handled, and managed appropriately (including attention to drainage), subsoil is capable of providing adequate rooting, drainage, aeration and runoff attenuation (see Clause 6). Some natural subsoils, especially clayey and silty subsoils, might not be able to survive the handling involved with trading subsoil.
NOTE 2 Multipurpose subsoil is natural subsoil or manufactured subsoil. This is the grade suited to most situations where subsoil is required; however, there can be situations where specific purpose subsoil is required (see NOTE 3).NOTE 3 Specific purpose subsoil is natural or manufactured subsoil. It comprises subsoils with characteristics appropriate for specialist applications, e.g. supporting the growth of certain plants or plant communities where acidic or calcareous soils are required.NOTE 4 Specific purpose subsoils might not be appropriate for general landscaping projects.NOTE 5 When specifying multipurpose or specific purpose subsoil, suppliers,specifiers and users of subsoil should take into account the intended use of the site
at which the subsoil is to be deployed so that the particular properties are fit for the intended planting.BS 8601 pdf download.