GB/T 45480-2025 Active National standards

GB/T 45480-2025 Manganese ores and concentrates—Determination of aluminium content—Photometric and gravimetric methods

Publish Date: 2025-03-28 Implement Date: 2025-10-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 45480-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Manganese ore

ICS Name: Manganese ore

Publish Date: 2025-03-28

Implement Date: 2025-10-01

Pages: 24 pages

Scope

This document describes the spectrophotometric and gravimetric methods for determining the aluminum content in manganese ores and manganese concentrates.
This document is applicable to the determination of aluminum content in manganese ores and manganese concentrates. Method A: Photometry, determination range (mass fraction): 0.1% to 1.5%; Method B: Gravimetry, determination range (mass fraction): greater than 1.5%.

Development Information

Word Count: 33 Thousand words Pages: 24 pages

Referenced Standards

GB/T 2011-1987 Method of sampling and sample preparation of manganese ores in bulk GB/T 6379.2-2004 Accuracy(trueness and precision)of measurement methods and results—Part 2:Basic method for the determination of repeatability and reproducibility of a standard measurement method GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 12806-1991 Laboratory glassware—One-mark volumetric flasks GB/T 12806-2011 Laboratory glassware—One-mark volumetric flasks GB/T 12807-1991 Laboratory glassware—Graduated pipettes GB/T 12807-2021 Laboratory glassware—Graduated pipettes GB/T 12808-1991 Laboratory glassware—One-mark pipettes GB/T 12808-2015 Laboratory glassware—One mark pipettes GB/T 14949.8-1994 Manganese ores—Determination of hygroscopic moisture content in analytical samples GB/T 14949.8-2018 Manganese ores—Determination of hygroscopic moisture content—Gravimetric method JJG 119-2005 Laboratory pH Meters JJG 119-2018 Laboratory pH Meters JJG 178-2007 Ultraviolet,Visible,Near-Infrared Spectrophotometers

Adopt standards

ISO 4295:1988

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