JIS R2208-1998 scan

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STD-JIS
R
22DB-ENGL
1998
M
q933b08
0553576
Ob5
m
b.
Y
J
IS
JAPANESE
I
NDUSTRIAL
STANDARD
Translated and Published by
Japanese Standards Association
Dense shaped refractory products-
Determination of permanent change
in dimensions on heating
8
ICs
81.080
Descriptors
:
refractory bricks, refractories, fire safety, bricks, refractory materials,
linear measurement, linearity, testing, permanent, heating tests,
thermal testing
Reference number
:
JIS
R
2208
:
1998
(E)
6s
STD-JIS
R
2208-ENGL
177A
I
‘i733h08 0553579
TTL
9
R 2208
:
1998
Foreword
This translation has been made based on the original Japanese Industrial
Standard revised by the Minister
of
International Trade and Industry
through deliberations at Japanese Industrial Standards Committee in
accordance with the Industrial Standardization Law:
Date
of
Establishment:
1950-04-19
Date
of
Revision:
1998-04-20
Date
of
Public Notice in Oficial Gazette:
1998-04-20
Investigated by: Japanese Industrial Standards Committee
Divisional Council on Ceramics
JIS
R
2208
:
1998,
First English edition published in
1999-02
Translated and published by: Japanese Standards Association
4-1-24,
Akasaka, Minato-ku, Tokyo,
107-8440
JAPAN
c
In
the event
of
any doubts arising
as
to the contents,
the original JIS is to be the final authority.
O
JSA
1999
All
rights reserved. Unless otherwise specified,
no
part
of
this publication may be reproduced
or
utilized in any form
or
by any means, electronic
or
mechanical, including photocopying and microfilm,
without permission in writing from the publisher.
Printed in Japan
I.
STD-JIS
R
2208-ENGL
1998
Li933b08
U553580
713
œ
JAPANESE INDUSTRIAL
STANDARD
JIS
R
2208
:
1998
Dense shaped refractory products-
Determination
of
permanent change
in dimensions on heating
Introduction
This Standard is the Japanese Industrial Standard prepared based
on
IS0
2478,
Dense shaped refractory products-Determination
of
permanent change
in
dimensions on heating,
published in
1987
as the second edition in accordance with
the structure of the original International Standard) however, part of contents of
the Standard has been altered in conformity
with
the actual circumstances of
our
country.
The places underlined with dots in this Standard show that the contents
of
the
original International Standard have been altered,
or
that the matters are not in-
cluded in the original International Standard.
1
Scope
This Japanese Industrial Standard specifies the
two
measuring methods
for permanent change in dimensions of dense shaped refractory bricks.
It
does
not
apply
to
products containing carbon.
2
Normative references
Normative references
to
this Standard are given in the
following.
IS0
5017
Dense shaped refractory products-Determination of bulk density,
ap-
parent porosity and true porosity
.............................................................................................................
...................
Informative reference
:
The contents are equivalent
to
JIS
R
2205,
Testing
method
for apparent porosity, water absorption specific gravity of
refractory bricks.
..................................................................................................................................................................
.................................................................................................................
..................................
IS0
5022
Shaped refractory products-Sampling and acceptance testing
Informative reference
:
The contents are equivalent
to
JIS
Z
9001,
General rules
for sampling inspection procedures.
..................................................................................................................................................................
.......................................................................
3
Definitions
For
the purposes
of
this Standard, the following definitions apply.
3.1
permanent change
in
dimensions on heating
The expansion or contrac-
tion that remains in a shaped refractory product that is heated
to
a specified tem-
perature for a specified time and then cooled
to
ambient temperature.
3.2
dense shaped refractory product
A
refractory product having a true porosity
(volumetric percentage) of less than
45
%
when measured in accordance with
IS0
5017.
Informative reference
:
This true porosity coincides with the true porosity
Pt
ob-
tained by using the bulk density
Db
and true specific
gravity
Dt
measured in accordance with
JIS
R
2205
as
well as the formula
(1).
..................................................................................................................................................................
.................................................................................................................
.................................................................................................................
...................................................
p
-
1;-
x
100
(Yo)
(1)
4
3
摘要：

本页面提供日本工业标准 JIS R2208-1998 的扫描版文档，该标准全称为《耐火砖的耐压强度试验方法》。该标准于1998年修订发布，详细规定了耐火砖在室温下压缩破坏强度的测定方法，包括试验设备、试样制备、加载速率及结果计算等关键技术要求。本扫描文档为原版标准的高清数字副本，适用于耐火材料生产、质检、工程验收及研发人员查阅参考，确保测试流程符合1998年版本的JIS规范要求。通过本页可直接获取该标准的完整内容，帮助用户准确理解并执行耐火砖耐压强度试验的标准操作程序。

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