Standard No.:	HG/T 4216-2011
English Name:	Fast methods to determine longevity and release rate of slow/controlled release fertilizers
Chinese Name:	缓释/控释肥料养分释放期及释放率的快速检测方法
Chinese Classification:	G20    Basic standards and general methods on chemical fertilizers
Professional Classification:	HG    Professional Standard - Chemistry
Issued by:	Ministry of Industry and Information Technology
Issued on:	2011-12-20
Implemented on:	2012-7-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	5500 words
Price(USD):	285.0
Delivery:	via email in 1~3 business day

本标准规定了缓释/控释肥料养分释放期及释放率的快速检测方法。
本标准适用于氮肥、钾肥、复混肥料、掺混肥料（BB肥）等产品的所有颗粒或部分颗粒经特定工艺加工而成的缓释/控释肥料养分释放期及释放率的快速检测。
本标准不适用于利用硝化抑制剂、脲酶抑制剂技术延缓养分形态转化的稳定性肥料，也不适用于无机包裹型复混肥料（复合肥料）、脲醛缓释肥料、含有有机态和螯合态养分的肥料。