Slow-release fertilizers — Determination of the release of the nutrients — Method for coated fertilizers
文件核验信息（付费前可核对）
标准范围（官方英文摘要）
ISO 21263:2017 specifies a method for the determination of the slow release properties of nutrients from coated fertilizers. pH-dependent hydrolysis and degradation by biological or microbial mechanisms are excluded.
The specified method is only applicable to products releasing any nutrients by means of a non-biological process (i.e. those where the nutrients are released by a physical mechanism). Microbial attack on the coating (e.g. sulfur coated fertilizers) and the consequences thereof are not measurable by the technique described.
This method involves a lengthy process which may not be appropriate for day to day testing purposes. Accelerated methods can be used provided they are correlated with this document. An example of such an accelerated method is described in Annex B. Regression analysis can also be used for this purpose.
标准信息
- 标准号
- ISO 21263:2017
- 英文标题
- Slow-release fertilizers — Determination of the release of the nutrients — Method for coated fertilizers
- 发布单位
- —
- 技术委员会
- ISO/TC 134
- 版本 / 版次
- 1
- 状态
- 现行
- 发布日期
- 2017
- ICS 分类
- 65.080 肥料
- 页数
- 9 页
- 官方定价
- CHF 63
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