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HG/T 2957.7-2004Alunite ores potassium and sodium content. The Potassium Tetraphenylborate gravimetric and flame emission spectrophotometry (English PDF)

明矾石矿石中钾和钠含量的测定四苯硼钾重量法和火焰发射分光光度法

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Issued by

MIIT

Level / Type

National · Recommended

Issue date

December 14, 2004

Implementation date

June 1, 2005

Scope

HG/T 2957.7-2004 is the English-translated version of 明矾石矿石中钾和钠含量的测定四苯硼钾重量法和火焰发射分光光度法.

HG/T 2957.7-2004 — Alunite ores potassium and sodium content. The Potassium Tetraphenylborate gravimetric and flame emission spectrophotometry

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Document preview — HG/T 2957.7-2004

National Standard of the People's Republic of China

ICS: 73.080
Classification: D 51
Replacing: HG/T 2957.7-1984

What this standard covers1
Document data2
Standards quoted by this document3

What this standard covers

This standard specifies the solar collector basic requirements for environmental labeling products, technical content and test methods. This standard applies to the use of solar radiation heating, heat the working fluid is a liquid collector.

Document data

International classification (ICS): 73.080.

Chinese classification (CCS): D51.

Estimated length of the Chinese original: 5,529 words.

Supersedes the earlier edition HG/T 2957.7-1984.

Standards quoted by this document

GB/T 6682

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 4 pages — is available in the English PDF.

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