AS 4419:2018 pdf free.Soils for landscaping and garden use. 4 DFFINITIONS For the purpose of this Standard, the definitions below apply. 4.1 Acid soils Soils that have a pH of not less than 4.5 and not greater than 6.0. 4.2 Alkaline soils Soils that have a pH of not less than 7.6 and not greater than 9.0. 4.3 Landscaping soils...
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