ISO 11262-2003 土壤质量.氰化物的测定.pdf

标准号：ISO 11262-2003
实施状态：作废
中文名称：土壤质量.氰化物的测定
英文名称：Soil quality - Determination of cyanide
发布日期：2003-09
被替代标准：ISO 11262-2011
代替标准：ISO/FDIS 11262-2003
采用标准：BS ISO 11262-2003,IDT;NF X31-407-2004,IDTN-ISO 11262-2008,IDT
起草单位：ISO/TC 190
标准简介：This International Standard is applicable to as-received soil samples, and specifies two quantification methods for the determination of easily released and complex cyanides. It is not always necessary to determine easily released cyanide prior to the measurement of complex cyanide. In this instance, the first part of the distillation process is omitted so that only the total cyanide is determined. The methods are applicable to soil containing between 0,5 mg/kg and 10 000 mg/kg of total cyanide. The methods and corresponding ranges of cyanide in the aliquot taken from the relevant absorption solution are as follows:
a)   photometric method:
This method is applicable for cyanide contents of 0,5 mg/kg to 50 mg/kg in the original field-moist sample.
b)   titrimetric method using an indicator:
This method is applicable for cyanide contents of above 50 mg/kg in the original field-moist sample.
文件格式：PDF
文件大小：277.94KB
文件页数：26
（以上信息更新时间为：2019-11-23）



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