標(biāo)準(zhǔn)號：DIN EN ISO 14254-2011
中文標(biāo)準(zhǔn)名稱：土質(zhì).氯化鋇提取物中可互換酸度的測定(ISO 14254-2001);德文版本EN ISO 14254-2011
英文標(biāo)準(zhǔn)名稱：Soil quality - Determination of exchangeable acidity in barium chloride extracts (ISO 14254:2001); German version EN ISO 14254:2011
標(biāo)準(zhǔn)類型：B11
發(fā)布日期：1999/12/31 12:00:00
實(shí)施日期：1999/12/31 12:00:00
中國標(biāo)準(zhǔn)分類號：B11
國際標(biāo)準(zhǔn)分類號：13.080.10
引用標(biāo)準(zhǔn)：ISO 3696;ISO 11260;ISO 11464;ISO 11465
適用范圍：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.