GB/T 45891-2025

Active

Fertilizers and soil conditioners—Determination of humic and hydrophobic fulvic acids concentrations in fertilizer materials

肥料和土壤调理剂肥料原料中腐植酸和疏水性黄腐酸含量的测定

Standard Type

GBT

ICS

65.080

CCS

G20

Status

现行

Issue Date

2025-06-30

Implementation

2026-01-01

Responsible Dept

中国石油和化学工业联合会

Drafting Unit

N/A

🔗 Related Standards / 同类标准

GB/T 2945-1989 Ammonium nitrate GB/T 13565-1992 Layouts for fertilizer sampling report GB/T 13566-1992 Determination of bulk density for fertilizers GB/T 6274-1997 Fertilizers and soil conditioners--Vocabulary GB/T 17420-1998 Foliar microelement fertilizer GB/T 17419-1998 Foliar fertilizer with amino acid GB/T 3600-2000 Fertilizers--Determination of ammoniacal nitrogen content--Formaldehyde method GB/T 3595-2000 Fertilizers--Determination of ammoniacal nitrogen content--Titrimetric method after distillation