MADCAD.com - The Cloud-Based Reference Library

Expand All

TOC Search:

BS 1902-10.2:1994 Methods of testing refractory materials. Investment casting shell mould systems - Determination of permeability and standard air flow capacity at elevated temperatures - Section 10.2: Determination of permeability and standard air flow c, 2003

BRITISH STANDARD [Go to Page]
Committees responsible for this British Standard
Contents
1 Scope
2 Definitions [Go to Page]
permeability
air flow capacity
standard air flow capacity (SAF)
3 Principle
4 Apparatus [Go to Page]
4.1 Test equipment
4.2 Air supply
4.3 Pressure regulator
4.4 Thermal mass flow sensor
4.5 Pressure sensor
4.6 Test piece temperature indication
4.7 Programmable control furnace [Go to Page]
Figure 1 - Configuration of test equipment
Figure 2 - Pressure-tight thermocouple/T-piece adaptor for thermocouple entry into air stream
Figure 3 - Detail of T-piece
Figure 4 - Location of test piece
5 Number and form of test pieces [Go to Page]
5.1 Number
5.2 Test piece former
5.3 Shelling
5.4 Burn-out [Go to Page]
Figure 5 - Sample former
6 Test procedure [Go to Page]
Table 1 - Test procedure: possible options
7 Shell characterization: procedure A [Go to Page]
7.1 Measurement of shell test pieces
7.2 Connecting test piece to apparatus and performing leak checks [Go to Page]
Figure 6 - Four sample diameter measurement points
7.3 Furnace controller
7.4 Test pressure
7.5 Recording data
8 Production/quality control procedure on a fired shell: procedure B
9 Production/quality control procedure on an unfired shell: procedure C
10 Calculation of results
11 Test report
Annex A (informative) Alternative calculation methods
Annex B (informative) Convention for tabular presentation of results [Go to Page]
Table B.1 - Temperature ramp phase
Table B.2 - Temperature dwell phase at 1 200 °C
Annex C (informative) Convention of graphical presentation [Go to Page]
Figure C.1 - Example of graphical presentation [Go to Page]

Email *
Password *
Confirm *
First Name *
Last Name *
Title
Company Name *
Company Size *
Industry *
Address *
Address 2
City *
State *	Zip *
Country *
Phone *
How did you hear about MADCAD.com? *

Company*
Full name*
Email*
Phone

Full name*
Email*
Phone
Your selection

MADCAD.com Free Trial

Report To Us

Contact us for a custom quote

⨯To continue with accurate pricing,
please select your company type below:

⨯We need your input!

⨯ We need your input!

⨯We need your input!

⨯We need your input!

Cart Warning

BS 1902-10.2:1994 Methods of testing refractory materials. Investment casting shell mould systems - Determination of permeability and standard air flow capacity at elevated temperatures - Section 10.2: Determination of permeability and standard air flow c, 2003

Username:
Password:

Company Industry
Number Of Employees
Revenue

MADCAD.com Free Trial

Report To Us

Contact us for a custom quote

⨯To continue with accurate pricing, please select your company type below:

⨯We need your input!

⨯ We need your input!

⨯We need your input!

⨯We need your input!

Cart Warning

BS 1902-10.2:1994 Methods of testing refractory materials. Investment casting shell mould systems - Determination of permeability and standard air flow capacity at elevated temperatures - Section 10.2: Determination of permeability and standard air flow c, 2003

⨯To continue with accurate pricing,
please select your company type below: