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HG/T 4857-2015Test method for activity of pre-reduced ammonia synthesis catalysts (English PDF)

预还原型氨合成催化剂活性试验方法

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Issued by

MIIT

Level / Type

Industry · Recommended

Issue date

July 14, 2015

Implementation date

January 1, 2016

Scope

HG/T 4857-2015 is the English-translated version of 预还原型氨合成催化剂活性试验方法.

HG/T 4857-2015 is a recommended Chinese chemical industry standard that lays down the test method for the activity of pre-reduced ammonia synthesis catalyst. It is a method document: it defines how that activity is determined, and does not set product requirements for the catalyst itself. The method applies to pre-reduced ammonia synthesis catalysts used in the reaction of hydrogen and nitrogen to ammonia. The standard is classified G74 in the Chinese system and 71.100.99 internationally, among catalysts and related chemical products, and it quotes GB/T 601, GB/T 603, GB/T 6003.1, GB/T 6682 and HG/T 3550. Issued on 14 July 2015, it has applied since 1 January 2016.

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Document preview — HG/T 4857-2015

National Standard of the People's Republic of China

ICS: 71.100.99

Issued by: Ministry of Industry and Information Technology of the People's Republic of China

2 Normative references

2 Normative references

HG/T 4857-2015 cites the following standards, which apply in full or in part through the references made to them in its clauses.

GB/T 601

GB/T 603

GB/T 6003.1

GB/T 6682

HG/T 3550

......
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

Similar standards

HG/T 3545-2014|HG/T 6055-2022|HG/T 3550-2013|HG/T 3554-2013|HG/T 4864-2015|HG/T 5909-2021

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