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GB/T 14634.4-2002Test methods of rare earth three-band phosphors for fluorescent lamps - Determination of particle size distribution by electric sensing zone technique (English PDF)

灯用稀土三基色荧光粉试验方法电传感法粒度分布测定

GB/T 14634.4 | Evolution and historical versions

Std ID	Title	Status
GB/T 14634.4-2002	Test methods of rare earth three-band phosphors for fluorescent lamps - Determination of particle size distribution by electric sensing zone technique	Obsolete

GB/T 14634.4-2002 is obsolete. This page sells the obsolete edition, for projects and contracts that still cite it.

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Issued by

General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

Level / Type

National · Recommended

Issue date

January 1, 2002

Implementation date

June 1, 2003

Scope

GB/T 14634.4-2002 is the English-translated version of 灯用稀土三基色荧光粉试验方法电传感法粒度分布测定.

GB/T 14634.4-2002 is the Chinese national standard "Test methods of rare earth three-band phosphors for fluorescent lamps - Determination of particle size distribution by electric sensing zone technique".

It was issued on January 1, 2002 by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, and took effect on June 1, 2003. It is obsolete: it has been withdrawn (abolished on December 15, 2017).

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Document preview — GB/T 14634.4-2002

National Standard of the People's Republic of China

Issued by: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China

Document data

1 Document data

Sector: National standard (Recommended).

Issuing body: General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China.

Date of issue: 2002-01-01.

Date of implementation: 2003-06-01.

Status: obsolete, withdrawn on 2017-12-15.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.

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