Fertilizers. Chemical analysis. Determination of phosphorus-Extraction of water-soluble phosphates
肥料 化学分析 磷的测定 水溶性磷酸盐的提取
1978-01-31
ASTM D8001-16(2024)
Standard Test Method for Determination of Total Nitrogen, Total Kjeldahl Nitrogen by Calculation, and Total Phosphorus in Water, Wastewater by Ion Chromatography
通过计算测定总氮 总凯氏氮素的标准测试方法和水中的总磷 离子色谱法测定的废水
2024-11-01
NY/T 3425-2019
水溶肥料 总铬、三价铬和六价铬含量的测定
Water-soluble fertilizers-Determination of total Chromium and chromium (Ⅲ)and chromium (Ⅵ)contents
2019-01-17
NB/T 11531-2024
煤矿水中总磷、氨氮、高锰酸盐指数含量的测定 流动注射-分光光度法
Determination of total phosphorus,ammonia nitrogen,permanganate index in coal mine water—Flow injection-spectrophotometry
2024-05-24
BS PD CEN/TS 17403-2021
Fertilizers. Determination of cold water insoluble nitrogen and hot water insoluble nitrogen in solid urea formaldehyde and methylene urea slow-release fertilizers and determination of the solubility of nutrient polymers in phosphate buffer solution with a pH of 7,5 at 100 °C
肥料 固体脲醛和亚甲基脲缓释肥料中冷水不溶性氮和热水不溶性氮的测定 以及营养聚合物在pH值为7,5、温度为100℃的磷酸盐缓冲溶液中溶解度的测定
2021-01-18
DIN CEN/TS 17403
Fertilizers - Determination of cold water insoluble nitrogen and hot water insoluble nitrogen in solid urea formaldehyde and methylene urea slow-release fertilizers and determination of the solubility of nutrient polymers in phosphate buffer solution with a pH of 7.5 at 100 ¿C; German version CEN/TS
肥料.固体脲醛和亚甲基脲缓释肥料中冷水不溶性氮和热水不溶性氮的测定 以及在100℃pH值为7.5的磷酸盐缓冲溶液中营养聚合物溶解度的测定；德语版CEN/TS
2021-03-01
ISO 21793-2020
Water quality — Determination of total organic carbon (TOC), dissolved organic carbon (DOC), total bound nitrogen (TNb), dissolved bound nitrogen (DNb), total bound phosphorus (TPb) and dissolved bound phosphorus (DPb) after wet chemical catalysed ozone hydroxyl radical oxidation (COHR)
水质 - 催化臭氧羟基自由基氧化后总有机碳 总氮和总磷的测定