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HG/T 3187-2026Impermeable graphite heat exchanger with rectangular-block holes (English PDF)

不透性石墨矩形块孔式换热器

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Issued by

Ministry of Industry and Information Technology

Level / Type

National · Recommended

Issue date

April 16, 2026

Implementation date

November 1, 2026

Scope

HG/T 3187-2026 is the English-translated version of 不透性石墨矩形块孔式换热器.

HG/T 3187-2026 — Impermeable graphite heat exchanger with rectangular-block holes

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Document preview — HG/T 3187-2026

National Standard of the People's Republic of China

ICS: 71.120
Classification: G 94
Replacing: HG/T 3187-2012

Issued by: Ministry of Industry and Information Technology

[Preview only]
1 Scope
2 Normative references
3 Terms and definitions
4 Molecular formula and relative molecular mass
5 Classification
6 Test methods
6.1 General provisions
6.2 Appearance inspection
7 Inspection rules
9 Marking and accompanying documents

1 Foreword

HG/T 3187-2026 was issued by Ministry of Industry and Information Technology on 16 April 2026 and has been in force since 1 November 2026.

It replaces the earlier edition HG/T 3187-2012, HG/T 3187-1999.

The HG/T prefix marks a recommended standard. It is not law in itself: it becomes binding when a contract names it, when a regulation or a mandatory standard refers to it, or when a producer declares conformity with it.

2 Scope Preview

HG/T 3187-2026 falls under ICS 71.120, in the field of chemical technology.

This catalogue holds 1,628 other HG/T standards in that field.

In this catalogue, HG/T standards carry edition years from 1975 to 2026.

3 About this standard

Issued by: Ministry of Industry and Information Technology

Supersedes the earlier edition HG/T 3187-2012.

4 Related standards

Other editions:

HG/T 3187-2012 (earlier edition)

HG/T 3187-1999 (earlier edition)

5 Classification and status

International classification (ICS): 71.120

Chinese Standard Classification (CCS): G 94

Prefix HG/T: recommended standard.

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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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