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JG/T 21-1999Test methods for determining the performance of air cooling and air heating coils (English PDF)

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Issued by

Ministry of Housing and Urban-Rural Development of the People's Republic of China

Level / Type

National · Recommended

Issue date

June 4, 1999

Implementation date

June 4, 1999

Scope

JG/T 21-1999 (Test methods for determining the performance of air cooling and air heating coils) is available as an English-translated PDF.

JG/T 21-1999 — This standard specifies the forced flow of surface air coolers and air heaters (hereinafter referred to as heat) performance test methods and requirements.

This standard applies to water as the medium of air cooler (or air heater) and steam as the medium of the air heater. For ethylene drunk with saline or air cooler solution for the medium can also refer to this standard test.

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Document preview — JG/T 21-1999

National Standard of the People's Republic of China

ICS: 91.140.30
Classification: P 48
Replacing: GB 10223-1988

What this standard covers1
Document data2

What this standard covers

This standard specifies the forced flow of surface air coolers and air heaters (hereinafter referred to as heat) performance test methods and requirements. This standard applies to water as the medium of air cooler (or air heater) and steam as the medium of the air heater. For ethylene drunk with saline or air cooler solution for the medium can also refer to this standard test. This standard does not apply to the refrigeration system evaporator and condenser.

Document data

International classification (ICS): 91.140.30.

Chinese classification (CCS): P48.

Estimated length of the Chinese original: 16,112 words.

Supersedes the earlier edition GB 10223-1988.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 11 pages — is available in the English PDF.

Referenced standards

Cited by

GB/T 19232-2019Fan coil unit

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