GB/T 24980-2020 Active National standards

GB/T 24980-2020 Rare earth long afterglow phosphors

GB/T 24980-2020 Rare earth long afterglow phosphors

Publish Date: 2020-11-19 Implement Date: 2021-10-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 24980-2020

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Rare earth metals and their alloys

ICS Name: Other non-ferrous metals and their alloys

Publish Date: 2020-11-19

Implement Date: 2021-10-01

Pages: 11 pages

Scope

This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation, storage, and quality certificates for rare earth long-afterglow phosphors.
This standard applies to rare earth long-afterglow phosphors obtained by high-temperature solid-phase reactions in aluminate systems, silicate systems, and sulfide oxide systems. They are mainly used in fire safety applications, such as emergency signs and escape route markings, as well as in the plastics, ink, and ceramics industries for low-light indication, and in outdoor and road environments for guidance and low-light illumination in low-visibility conditions.

Development Information

Word Count: 20 Thousand words Pages: 11 pages

Replace the following standards

GB/T 24980-2010 Long afterglow phosphors activated by rare earths

Referenced Standards

GB/T 20170.1-2006 Test methods for physical characters of rare earth metals and their compounds—Determination for particle size distribution of rare earth compounds 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 15676-1995 Terms for rare earths GB/T 15676-2015 Terms for rare earths GB/T 24981.1-2010 Test methods of long afterglow phosphors activated by rare earths—Part 1:Determination of emission dominantpeak and chromaticity coordinates GB/T 24981.1-2020 Test methods of rare earth long afterglow phosphors—Part 1:Determination of emission dominantpeak and chromaticity coordinates GB/T 24981.2-2010 Test methods of long afterglow phosphors activated by rare earths—Part 2:Determination of relative brightness GB/T 24981.2-2020 Test methods of rare earth long afterglow phosphors—Part 2:Determination of afterglow brightness

Related Standards

GB/T 13840-1992 Abolished

GB/T 13840-1992 Wafer carriers

Publish Date: 1992-12-28

GB/T 15677-1995 Replaced

GB/T 15677-1995 Lanthanum metal

Publish Date: 1995-08-11

GB/T 3136-1995 abolished_transferred

GB/T 3136-1995 Tantalum powders

Publish Date: 1995-10-17

GB/T 3463-1995 Abolished

GB/T 3463-1995 Tantalum wires

Publish Date: 1995-10-17

GB/T 3628-1995 Replaced

GB/T 3628-1995 Tantalum and tantalum alloy foils

Publish Date: 1995-10-17

GB/T 16476-1996 Replaced

GB/T 16476-1996 Scandium metal

Publish Date: 1996-07-09