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SEMI F57-0301 © SEMI 200 0, 2001 9 Table 7 Relat ed Standards for Plastic Pipi ng Materials PP PVDF PVC PFA ECTFE Materia ls P REN 12 202-1 DIN 167 74 ISO/DIS 1587 4-1 ASTM D4101 ISO 10 931-1 ASTM D3222 PR EN 1452- 1 AST…

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SEMI F57-0301 © SEMI 2000, 2001 8
PREN 12202-3 — Plastics Piping Systems for Hot and
Cold Water - Polypropylene (PP) - Part 3: Fittings
PREN 12202-5 — Plastics Piping Systems for Hot and
Cold Water - Polypropylene (PP) - Part 5: Fitness for
Purpose of the System
12.5 ISO Standard
2
ISO 10931-1 — Plastic piping systems for industrial
applications - PVDF - Part 1: General
ISO 10931-2 — Plastic piping systems for industrial
applications - PVDF - Part 2: Pipes
ISO 10931-3 — Plastic piping systems for industrial
applications - PVDF - Part 3: Fittings
ISO 10931-4 — Plastic piping systems for industrial
applications - PVDF - Part 4: Valves
ISO/FDIS 10931-5 — Plastic piping systems for
industrial applications - PVDF - Part 5: Fitness for
Purpose of the System
ISO/DIS 15874-1 — Plastics piping systems for hot and
cold water -- Polypropylene (PP) -- Part 1: General
ISO/DIS 15874-2 — Plastics piping systems for hot and
cold water -- Polypropylene (PP) -- Part 2: Pipes
ISO/DIS 15874-3 — Plastics piping systems for hot and
cold water -- Polypropylene (PP) -- Part 3: Fittings
ISO/DIS 15874-5 — Plastics piping systems for hot and
cold water -- Polypropylene (PP) -- Part 5: Fitness for
purpose of the system
12.6 SEMATECH Documents
6
SEMASPEC 92010936B-STD — Provisional Test
Method for Determining Leachable Trace Inorganics in
Ultra Pure Water Distribution System Components”
SEMASPEC 92010950B-STD — Provisional Test
Method for Visual Characterization of Surface
Roughness for Plastic Surfaces of UPW Distribution
System Components
6 SEMATECH, 2706 Montopolis Drive, Austin, Texas 78741, USA
SEMI F57-0301 © SEMI 2000, 20019
Table 7 Related Standards for Plastic Piping Materials
PP PVDF PVC PFA ECTFE
Materials PREN 12202-1
DIN 16774
ISO/DIS 15874-1
ASTM D4101
ISO 10931-1
ASTM D3222
PREN 1452-1
ASTM D1784
ASTM D3915
ASTM D3307 ASTM D3275
Pipes PREN 12202-2
DIN 8077
DIN 8078
ISO/DIS 15874-2
ISO 10931-2 PREN 1452-2 No standards No standards
Fittings PREN 12202-3
ISO/DIS 15874-3
ISO 10931-3 PREN 1452-3 No standards No standards
Valves DIN 3442-1
DIN 3442-2
DIN 3442-3
ISO 10931-4 PREN 1452-4 No standards No standards
Systems PREN 12202-5
ISO/DIS 15874-5
ISO/FDIS 10931-5 PREN 1452-5 No standards No standards
NOTE 1: See Related Documents Sections 12.2, 12.3, 12.4, and 12.5.
NOTICE: SEMI makes no warranties or representations as to the suitability of the standard set forth herein for any
particular application. The determination of the suitability of the standard is solely the responsibility of the user.
Users are cautioned to refer to manufacturer’s instructions, product labels, product data sheets, and other relevant
literature respecting any materials mentioned herein. These standards are subject to change without notice.
The user’s attention is called to the possibility that compliance with this standard may require use of copyrighted
material or of an invention covered by patent rights. By publication of this standard, SEMI takes no position
respecting the validity of any patent rights or copyrights asserted in connection with any item mentioned in this
standard. Users of this standard are expressly advised that determination of any such patent rights or copyrights, and
the risk of infringement of such rights, are entirely their own responsibility.
SEMI F57-0301 © SEMI 2000, 2001 10
RELATED INFORMATION 1
THEORETICAL DYNAMIC CONCENTRATION (TDC)
NOTE: This related information is not an official part of SEMI F57 and was derived from the work of the originating task force.
This related information was approved for publication by full letter ballot procedures on August 28, 2000.
R1-1 TDC Definition and Calculation
R1-1.1 For purposes of demonstrating a theoretical
mathematical relationship between the maximum
allowed static leach out values (provided in this
specification) and a corresponding concentration which
may result in a flowing stream, this related information
on Theoretical Dynamic Concentration (TDC) is being
provided.
R1-1.2 The Static Value as defined in this document
(see Section 7.3.4) is a measure of the weekly
accumulated mass transfer of contaminant (contaminant
flux per week) from the material being tested into static
ultrapure water (UPW). The value is calculated based
upon measurement of total leached mass of a
contaminant per unit area of the surface that was wetted
in the test apparatus. Since the duration of the static
test is fixed at 7 days, the information is simply
reported as mass/area (Tables 3, 4, and 5 use units of
µg/m
2
).
R1-1.3 The Theoretical Dynamic Concentration (TDC)
is a mathematical conversion of the static value into a
theoretical prediction of concentration of a contaminant
incorporated into the flowing liquid by contact with the
contaminant generating (or transmitting) polymer
component wall. The conversion depends upon a
model which assumes a uniform rate of contaminant
generation that is equal to the average rate over the 7
day Static Value test (7d * 24 hr/d * 3600 sec/hr = 6.05
x 10
5
sec). The model also assumes a non-depleting
source of the contaminant in steady state transport
conditions through the component/liquid interface. In
general, this assumption is only true early in the life of
the piping system installation. Values have been found
to decrease in time. Calculation of TDC for
specification limit purposes can be derived by dividing
the static value limit for the component (adjusted for
wetted surface area of the component) by the volume of
liquid affected by contact with the component.
R1-2 TDC Example
R1-2.1 Referring to the concentrations shown in Tables
3, 4 and 5, a 1 meter long, 60 mm inner diameter pipe
with an UPW constant fluid velocity of 1.5
meters/second is selected as an example. Since several
factors will affect the actual concentration in a flowing
stream the TDC should be considered as approximate,
not absolute.
I.D. d = 60 mm
Length l = 1.0 m
Fluid velocity = 1.5 m/sec
R1- 2.2 Example of TDC Calculation:
a) Surface area of tube I.D.
= πdl
= (π)(0.060 m)(1.0 m)
= 0.188 m
2
= 1.88 × 10
-1
m
2
b) Volume of tube I.D.
= π (d/2)
2
l
= (π)(0.060/2 m)
2
(1.0 m)
= 2.83 × 10
-3
m
3
= (2.83 × 10
-3
m
3
)(1 × 10
3
liter/m
3
)
= 2.83 liter
c) Volume of liquid transported through tube per
second
= (1.5 m/sec) (2.83 liter/m)
= 4.25 liter/sec
d) Volume of liquid transported through tube per
week
= (4.25 liter/sec)(6.05 x 10
5
sec/wk)
= 2.57 × 10
6
liter/wk
e) Assume a Static Value limit of 10µg/m
2
= (10 µg/m
2
)(1.88 × 10
-1
m
2
)
= 1.88 µg
f) Using the values from d and e, above,
TDC = 1.88 µg / 2.57 × 10
6
liter
TDC = 7.3 × 10
-7
µg/liter
(or, 7.3 × 10
-4
parts per trillion in liquids with an
approximate density of 1 gram/cm
3
)