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YD/T 2457.2-2016Method for chemical composition analysis of dimethyl ether catalyst by vapor phase dehydration of methanol (English PDF)

基于统一IMS的业务测试方法多媒体电话业务（第一阶段）第2部分：呼叫闭锁和多方通话业务

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Issued by

Ministry of Industry and Information Technology

Level / Type

National · Recommended

Issue date

April 5, 2016

Implementation date

July 1, 2016

Scope

YD/T 2457.2-2016 is the English-translated version of 基于统一IMS的业务测试方法多媒体电话业务（第一阶段）第2部分：呼叫闭锁和多方通话业务.

YD/T 2457.2-2016 — Method for chemical composition analysis of dimethyl ether catalyst by vapor phase dehydration of methanol

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Document preview — YD/T 2457.2-2016

National Standard of the People's Republic of China

Classification: M 21

Issued by: Ministry of Industry and Information Technology

What this standard covers1
Document data2

What this standard covers

This standard specifies the test methods for call blocking and multi-party services based on unified IMS and configuration and management of each service.

Document data

Chinese classification (CCS): M21.

Estimated length of the Chinese original: 25,277 words.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.

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