DIN EN ISO 14254-2011 土质.氯化钡提取物中可互换酸度的测定(ISO 14254-2001);德文版本EN ISO 14254-2011

标准号：DIN EN ISO 14254-2011
中文标准名称：土质.氯化钡提取物中可互换酸度的测定(ISO 14254-2001);德文版本EN ISO 14254-2011
英文标准名称：Soil quality - Determination of exchangeable acidity in barium chloride extracts (ISO 14254:2001); German version EN ISO 14254:2011
标准类型：B11
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：B11
国际标准分类号：13.080.10
引用标准：ISO 3696;ISO 11260;ISO 11464;ISO 11465
适用范围：This International Standard specifies a method for the determination of exchangeable acidity in barium chloride extracts of soil samples obtained according to ISO 11260.The procedure described herein mainly concerns the determination of total exchangeable acidity by means of a fixed-pH end-point titration (see note). Two optional procedures are also given, describing respectively, determinations of free H+ acidity and of aluminium in the extracts.This International Standard is applicable to all types of air-dry soil samples which have been pretreated in accordance with ISO 11464.