GB/T 47305-2026 Pending National standards

GB/T 47305-2026 Determination of availa bleboron in soil

Publish Date: 2026-03-31 Implement Date: 2026-10-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Price: $ 44.00

Out of stock

Basic Information

Standard Code: GB/T 47305-2026

Standard Type: National standards

Standard Status: Pending

is_force_gb: no

CCS Name: \nSoil and fertilizer

ICS Name: \nSoil quality, soil science

Publish Date: 2026-03-31

Implement Date: 2026-10-01

Pages: 20 pages

Scope

This document describes the methods for determining the effective boron in soil using inductively coupled plasma emission spectrometry, inductively coupled plasma mass spectrometry, curcumin colorimetry, and methylisothiazolinone-H colorimetry. In this document, inductively coupled plasma emission spectrometry and inductively coupled plasma mass spectrometry are suitable for determining effective boron in all types of soil, while methylisothiazolinone-H colorimetry is not suitable for determining effective boron in soil with a content lower than 0.29 mg/kg. When the sample weight is 10.00 g and the extraction solvent is 20 mL of water: - The detection limit of inductively coupled plasma emission spectrometry is 0.03 mg/kg, and the determination limit is 0.08 mg/kg; - The detection limit of inductively coupled plasma mass spectrometry is 0.02 mg/kg, and the determination limit is 0.04 mg/kg; - The detection limit of curcumin colorimetry is 0.05 mg/kg, and the determination limit is 0.08 mg/kg; - The detection limit of methylisothiazolinone-H colorimetry is 0.12 mg/kg, and the determination limit is 0.29 mg/kg.