泥炭材料中总氮的标准试验方法

详细信息   

• 标准号：ASTM D2973-2010
• 发布日期：2010
• 英文题名：Standard Test Method for Total Nitrogen in Peat Materials
• 英文主题词：chemical analysis ; nitrogen compounds ; peat
• 标准状态：现行
• 发布单位：US-ASTM
• 国际标准分类号：65.080 (Fertilizers)
• 载体形态：3P.;A4
• 中国标准分类号：D20;B10
• 国别：美国材料与试验协会

文摘

Nitrogen content is important as it is one of the primary plant food elements necessary for plant growth. Nitrogen is present in peat as organic nitrogen, and therefore, does not release nitrogen to plants as quickly as chemical fertilizers. However, nitrogen from peat continues to be released for several years as the organic matter decomposes.

:

1.1 This test method covers a chemical test method for the determination of the weight percent of nitrogen in peat material.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. (See Practice D3740)