Customer Support: +1 416-401-8730

Login to i2i Subscription Intertek.com
  • There are no items in your cart
Please enter a keyword to search
Advanced search
Home
BSI
BS EN 725-1:2007

BS EN 725-1:2007

Current

Current

The latest, up-to-date edition.

Advanced technical ceramics. Methods of test for ceramic powders Determination of impurities in alumina

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

10-31-2007

Publisher

British Standards Institution

Foreword
1 Scope
2 Normative references
3 Principle
4 Reagents
   4.1 General
   4.2 Reagents for fusion
   4.3 Sulphuric acid-phosphoric acid mixture for acid
       dissolution
   4.4 Reagents for calibration
5 Apparatus
6 Test sample
7 Decomposition of the test sample
   7.1 General
   7.2 Fusion
   7.3 Acid dissolution
8 Calibration graph
   8.1 General
   8.2 Fusion
   8.3 Acid dissolution
   8.4 Drawing the calibration curve
9 Adjustment of the apparatus
   9.1 Atomic absorption spectrometer
   9.2 Inductively coupled plasma spectrometer
10 Measurements
11 Expression of the results
12 Test report
Annex A (informative) Repeatability and reproducibility
Bibliography

Defines one fusion and one acid dissolution method for the determination of elements of sodium, potassium, iron, silicon, calcium and magnesium present as impurities in alumina using atomic absorption spectroscopy (AAS) or inductively coupled plasma (ICP) spectroscopy.

This Part of EN 725 specifies one fusion and one acid dissolution method for the determination of elements of sodium, potassium, iron, silicon, calcium and magnesium present as impurities in alumina using atomic absorption spectroscopy (AAS) or inductively coupled plasma (ICP) spectroscopy. For each element present as impurities, the methods are applicable to the following ranges, calculated as oxides : - Sodium oxide: 20 ppm to 6000 ppm - Potassium oxide: 20 ppm to 100 ppm - Ferric oxide: 20 ppm to 300 ppm - Silica: 50 ppm to 2000 ppm - Calcium oxide: 20 ppm to 700 ppm - Magnesium oxide: 5 ppm to 1000 ppm

Committee
RPI/13
DevelopmentNote
Supersedes 93/311578 DC. (08/2005) Supersedes 05/30117337 DC. (10/2007)
DocumentType
Standard
Pages
14
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
I.S. EN 725-1:2007 Identical
DIN EN 725-1:2008-06 Identical
NEN EN 725-1 : 2007 Identical
SN EN 725-1:2007 Identical
UNI EN 725-1 : 2008 Identical
NBN EN 725-1 : 2007 Identical
EN 725-1:2007 Identical
NS EN 725-1 : 2ED 2007 Identical
NF EN 725-1 : 2007 Identical

ISO/IEC 17025:2005 General requirements for the competence of testing and calibration laboratories
ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
ISO 3696:1987 Water for analytical laboratory use — Specification and test methods
EN ISO 3696:1995 Water for analytical laboratory use - Specification and test methods (ISO 3696:1987)

View more information
US$143.74
Excluding Tax where applicable
USD
CAD
CHF
CNY
DKK
EUR
GBP
HKD
IDR
INR
JPY
KRW
MXN
NOK
NZD
SEK
SGD
USD
ZAR
Hardcopy - English
PDF - English
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.

Learn more on subscription solutions

or

Get in touch with us