GB/T 7321-2004

Abolished

Sample preparation for testing of shaped refractory products

定形耐火制品试样制备方法

Standard Type

GBT

ICS

81.080

CCS

Q40

Status

废止

Issue Date

2004-01-19

Implementation

2004-07-01

Responsible Dept

国家标准委

Drafting Unit

国家标准委

📋 Scope / 适用范围 ai_extracted

This standard specifies the definitions, sampling locations, and preparation of test specimens for shaped refractory products. This standard is applicable to the preparation of test specimens for shaped refractory products.

本标准规定了定形耐火制品制样的定义、制样部位和试样的制备。本标准适用于定形耐火制品试样的制备。

📝 Foreword / 前言 ai_extracted

This standard replaces GB/T 7321-1987 "Rules for Sample Preparation of Dense Shaped Refractory Products for Testing". Compared with the previous edition, this revision mainly adds the following contents: — Specifies the principles for determining the sampling location; — Clarifies the sample preparation requirements for composite products composed of two or more materials; — Determines the sampling location for specimens of special specifications; — Supplements the sample preparation requirements for testing shaped insulating refractory products. This standard is proposed by the China Iron and Steel Industry Association. This standard is under the jurisdiction of the National Technical Committee on Refractories of Standardization Administration of China. This standard is drafted by Luoyang Institute of Refractories Research. The main drafter of this standard is Zheng Xianghua. The previous editions of the standard replaced by this standard are as follows: — YB 368^-376-1963 "Appendix 2 of Ministry-Standard Refractory Materials: Sampling Location"; — YB 843-1975 "Rules for Sample Preparation of Refractory Products for Inspection"; — GB/T 7321-1987 "Rules for Sample Preparation of Dense Shaped Refractory Products for Testing". GB/T 7321-2004 Method for Sample Preparation of Shaped Refractory Products

本标准代替GB/T 7321-1987《致密定形耐火制品试验的制样规定》。本次修订与前版标准相比，主要增加了下列内容： — 规定了制样部位的确定原则； — 明确了由两种或多种材质组成的复合制品的制样规定； — 确定了特殊规格试样的制样部位； — 补充了定形隔热耐火制品试验的制样要求。本标准由中国钢铁工业协会提出。本标准由全国耐火材料标准化技术委员会归口。本标准由洛阳耐火材料研究院负责起草。本标准主要起草人：郑祥华。本标准所代替标准的历次版本发布情况为： — YB 368^-,376-1963《部颁耐火材料标准附件二取样部位》； — YB 843-1975《耐火制品检验制样规定》； — GB/T 7321-1987《致密定形耐火制品试验的制样规定》。 GB/T 7321- 2004 定形耐火制品试样制备方法

🔗 Related Standards / 同类标准

GB/T 3996-1983 Shaped thermal insulating products--Diatomite bricks and shapes GB/T 15545-1995 Unshaped refractory--Packing， marking， transportation and storage GB/T 16763-1997 Shaped insulating refractory products--Classification GB/T 17105-1997 Classification of dense shaped refractory products GB/T 17617-1998 Refractory products--Sampling of raw materials and unshaped products GB/T 2992-1998 Dimensions of general bricks GB/T 17912-1999 Refractory bricks for rotary kilns--Dimensions GB/T 18257-2000 Refractory bricks for use in rotary kilns--Hot-face identification marking

Content extracted by AI. Not officially verified.