GB/T 43304-2023Oxynitride cyan phosphors for white LEDs (English PDF)
白光LED用氮氧化物蓝绿粉
This is a limited preview
Buy now to download the full PDF (15 pages)
Need quotation for your management?
Get a formal quotation for GB/T 43304-2023 in 30 minutes.
Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
November 27, 2023
Implementation date
June 1, 2024
Scope
GB/T 43304-2023 is the English-translated version of 白光LED用氮氧化物蓝绿粉.
GB/T 43304-2023 is the Chinese national product standard for the oxynitride cyan phosphors used in white LEDs, covering their technical requirements, test methods, inspection rules, marking, packaging, transportation, storage and accompanying documents.
Clause 1 applies it to cyan phosphors made by high-temperature solid-phase reaction, by co-precipitation or by combustion, phosphors that under excitation between 350 nm and 480 nm emit cyan light between 485 nm and 505 nm which combines with the excitation light to make white, the main use being white LED devices driven by violet or near-ultraviolet chips.
It defines reference phosphors, the relative brightness Br measured against them, and chromaticity coordinates on the CIE 1931 observer. Among the standards it quotes are GB/T 24982-2020 and GB/T 23595. Issued on 27 November 2023, it has applied since 1 June 2024.
Found what you need?
Document preview — GB/T 43304-2023
National Standard of the People's Republic of China
- ICS
- 77.120.99
- Classification
- H 65
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative reference documents
- 3 Terms and definitions
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.
1 Scope
This document specifies the technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of nitrogen oxide blue-green powder for white light LEDs. Save and accompanying files.
This document applies to nitrogen oxide blue-green powder prepared by liquid phase methods such as high-temperature solid-phase reaction method, co-precipitation method or combustion method. The phosphor is used in When excited by a light source with a wavelength of 350nm~480nm, it emits blue-green light of 485nm~505nm. This light is different from the light emitted by the excitation source.
The colored light forms white light, which is mainly used to prepare white LED light-emitting devices excited by purple/near-ultraviolet LED chips.
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document.
GB/T 5838.1-2015 Phosphors Part 1: Terminology
GB/T 8170 Numerical rounding rules and expression and determination of limit values
GB/T 14634.5-2010 Test methods for rare earth three-primary color phosphors for lamps Part 5: Determination of density
GB/T 15676-2015 Rare earth terminology
GB/T 20170.1-2006 Test methods for physical properties of rare earth metals and their compounds Determination of particle size distribution of rare earth compounds
GB/T 23595 (all parts) Test methods for rare earth yellow phosphors for white LED lamps
GB/T 24982-2020 Garnet structure aluminate series phosphors for white LEDs
GB 39176 Packaging, marking, transportation and storage of rare earth products
3 Terms and definitions
The following terms and definitions as defined in GB/T 15676-2015, GB/T 5838.1-2015 and GB/T 24982-2020 apply in this document.
3.1 Standard phosphors
Phosphors prepared according to specified specifications and certain requirements, given fixed values for performance indicators, and used for product relative brightness and other performance measurements.
3.2 Relative brightness
Under specified excitation conditions, the brightness ratio of the phosphor sample to the corresponding standard phosphor. [Source: GB/T 15676-2015, 6.3.32, with modifications]
3.3 chromaticity coordinates
A set of parameters used to characterize the color of phosphor light after being excited. Calculated according to CIE-1931 standard colorimetric observer rules.
Note: It is called chromaticity coordinates (x, y).
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 5838.1-2015Phosphors—Part 1: Terminology
- GB/T 8170Rules of rounding off for numerical values & expression and judgement of limiting values
- GB/T 14634.5-2010Test methods of rare earth three-band phosphors for fluorescent lamps - Part 5: Determination of density
- GB/T 15676-2015Terms for rare earths
- GB/T 20170.1-2006Test methods for the physical properties of rare earth metals and their compounds - Part 1: Determination of the particle size distribution of rare earth compounds - Laser diffraction method
- GB/T 24982-2020Garnet aluminate series of rare earth phosphors for white LED
GB/T 23595
Similar standards
How to Download GB/T 43304-2023
- 1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
- 2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
- 3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
- 4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.
Related Standards
GB 39176-2020 — Rare earth products packing, marking, transport and storage
GB/T 14634.5-2010 — Test methods of rare earth three-band phosphors for fluorescent lamps - Part 5: Determination of density
GB/T 15676-2015 — Terms for rare earths
Secure payment via Stripe
Payments accepted
GB/T 43304-2023
$145.00