Download 4 Passive materials and copper alloys for product group D

For our environment
1. ------IND- 2016 0545 D-- EN- ------ 20161020 --- --- PROJET
Version: 22 September 2016
ASSESSMENT BASIS
Basis for assessment of metallic materials
coming into contact with drinking water
Second amendment
The following amendments shall be applied to the notified version
(2013/541/D) published on 2 April 2015 and/or the notified version of the
first amendment (2015/513/D) published on 28 January 2016.
In Chapter I Introduction, the following statement is added in Section 4
after the first sentence:
‘The amendments thus far have resulted in an expansion of the positive list.
These amendments are therefore binding as at 10 April 2017 as well.’
In Chapter IV Structure of the positive list, Paragraphs 2 and 3 are replaced
by the following amendments:
‘The suitability of metallic materials for drinking water shall be specified for
use in the following product groups:
A)
Pipes,
B)
Fittings, pipe connectors, devices and pumps for drinking
water systems,
C)
1. Components in fittings, pipe connectors, devices and pumps
for drinking water systems whose total water-contact surface
area does not exceed 10% of the total water-contact surface
of the component.
2. Fittings, pipe connectors, devices and pumps in the area of
water supply outside of drinking water systems with
generally continuous flow, and
D)
Components in fittings, pipe connectors, devices and pumps in
the area of water supply outside of drinking water systems
(C2) whose total water-contact surface area does not exceed
10% of the total water-contact surface of the component.
Federal Environment Agency
Department II 3.4
Heinrich-Heine-Str. 12
08645 Bad Elster
www.umweltbundesamt.de
The use of pipe materials (A) and materials for product group C2 may be restricted to certain
types of drinking water. Materials in product group A (pipe materials) may also be used for
applications in product groups B, C and D. Materials for product groups B and C1 must exhibit
general suitability for drinking water and shall be assessed accordingly by the Federal
Environment Agency. This means that they are usable with all drinking water types. Materials for
product group D are not listed explicitly, but rather must meet specific chemical composition
requirements.’
In the Annex, the following materials are added in Category 2.1:
‘2.1.3.3 CW501L-DW (CuZn10)
Product
group
Designation
CW501L-DW* (CuZn10) C
* further restrictions on composition (see below) compared to the standardised European composition of CW501L
Alloy constituents (% (m/m)):
Cu
Zn
89.0% - 91.0%
Remainder
Unavoidable accompanying elements (% (m/m)):
Fe
Ni*
Pb
Sn
≤ 0.05%
≤ 0.2%
≤ 0.05%
≤ 0.1%
2.1.3.4 CW506L-DW (CuZn33)
Product
group
Designation
CW506L-DW* (CuZn33) B and C
* further restrictions on composition (see below) compared to the standardised European composition of CW506L
Alloy constituents (% (m/m)):
Cu
Zn
66.0% - 68.0%
Remainder
Unavoidable accompanying elements (% (m/m)):
Fe
Ni*
Pb
Sn
≤ 0.05%
≤ 0.2%
≤ 0.05%
≤ 0.1%
2.1.3.5 CW507L-DW (CuZn36)
Designation
Product group
CW507L-DW* (CuZn36)
B and C
* further restrictions on composition (see below) compared to the standardised European composition of CW507L
Alloy constituents (% (m/m)):
Cu
Zn
63.5% - 65.5%
Remainder
Unavoidable accompanying elements (% (m/m)):
Fe
Ni*
Pb
Sn
≤ 0.05%
≤ 0.2%
≤ 0.1%
≤ 0.1%
2.1.3.6 CW508L-DW (CuZn37)
Product
group
Designation
CW508L-DW* (CuZn37) B and C
* further restrictions on composition (see below) compared to the standardised European composition of CW508L
Alloy constituents (% (m/m)):
Cu
Zn
62.0% - 64.0%
Remainder
Unavoidable accompanying elements (% (m/m)):
Al
Fe
Ni*
Pb
Sn
≤ 0.05%
≤ 0.1%
≤ 0.2%
≤ 0.1%
≤ 0.1%
‘
In the Annex, the category boundaries, the reference material and the following material are
added in Category 2.5:
‘2.5.1 Category boundaries
Alloy constituents (% (m/m)):
Cu
Zn
As
≥ 60.0%
Remainder 0.02% - 0.10%
Sb
Al
0.02% - 0.10%
0.02% - 1.0%
Unavoidable accompanying elements (% (m/m)):
Fe
Mn
Ni
Pb
Sn
≤ 0.5%
≤ 0.1%
≤ 0.2%
≤ 0.2%
≤ 0.5%
2.5.2 Reference material
Alloy constituents (% (m/m)):
Cu
Zn
As
Sb
Al
62.0% - 65.0%
Remainder
0.03% - 0.04% 0.04% - 0.05%
0.45% - 0.58%
Unavoidable accompanying elements (% (m/m)):
Fe
Mn
Ni
Pb
Sn
≤ 0.2%
≤ 0.1%
0.12% - 0.20%
0.15% - 0.25%
≤ 0.3%
Elements to be determined in comparative testing as per DIN EN 15664-1 in contact water:
aluminium, antimony, arsenic, lead, copper, nickel, zinc
2.5.3 Materials suitable for use in drinking water systems
2.5.3.1 CC771S (CuZn38AsSb)
Designation
Product
group
CC771S (CuZn38AsSb)
B and C
Alloy constituents (% (m/m)):
Cu
Zn
As
Sb
Al
62.0% - 65.0%
Remainder 0.02% - 0.04% 0.02% - 0.05%
0.45% - 0.7%
Unavoidable accompanying elements (% (m/m)):
Fe
Mn
Ni
Pb
Sn
≤ 0.2%
≤ 0.1%
≤ 0.20%
≤ 0.2%
≤ 0.3%
‘
In the Annex, the category title, boundaries and reference material are amended as follows for
Category 2.13:
In addition, the materials CC245E (CuSi4Zn4MnP-C) and CC246E (CuSi4Zn9MnP-C) are added
as replacements for CuZn10Si4MnP and the materials CuSi4Zn4MnP and CuSi4Zn9MnP:
‘2.13 Copper-silicon-zinc-manganese-phosphorus alloys
2.13.1 Category boundaries
Alloy constituents (% (m/m)):
Cu
Si
Zn
Mn
P
≥ 80.0% 0.5% - 5.5% Remainder 0.01% - 0.2%
0.01% - 0.3%
Unavoidable accompanying elements (% (m/m)):
Al
Fe
Ni
Pb
Sn
≤ 0.3%
≤ 0.5%
≤ 0.1%
≤ 0.1%
≤ 0.5%
2.13.2 Reference material
Alloy constituents (% (m/m)):
Cu
Si
Remainder 2.5% - 3.5%
Zn
Mn
P
8.0% - 10.0%
0.03% - 0.09%
0.05% - 0.10%
Unavoidable accompanying elements (% (m/m)):
Al
Fe
Ni
Pb
Sn
≤ 0.3%
≤ 0.3%
0.06% - 0.10%
0.06% - 0.10%
≤ 0.3%
Elements to be determined in comparative testing as per DIN EN 15664-1 in contact water:
Lead, copper, manganese, nickel, zinc
2.13.3 Materials suitable for use in drinking water systems
2.13.3.1 CC245E (CuSi4Zn4MnP-C)
Designation
Product
group
CC245E CuSi4Zn4MnP-C
B and C
Alloy constituents (% (m/m)):
Cu
Si
Remainder 2.5% - 4.5%
Zn
Mn
P
1.0% - 7.0%
0.03% - 0.09%
0.05% - 0.15%
Unavoidable accompanying elements (% (m/m)):
Al
Fe
Ni
Pb
Sn
≤ 0.3%
≤ 0.3%
≤ 0.10%
≤ 0.10%
≤ 0.3%
2.13.3.2 CC246E CuSi4Zn9MnP-C
Designation
Product
group
CC246E CuSi4Zn9MnP-C
B and C
Alloy constituents (% (m/m)):
Cu
Si
Remainder 2.5% - 4.5%
Zn
Mn
P
7.0% - 11.0%
0.03% - 0.09% 0.05% - 0.15%
Unavoidable accompanying elements (% (m/m)):
Al
Fe
Ni
Pb
Sn
≤ 0.3%
≤ 0.3%
≤ 0.10%
≤ 0.10%
≤ 0.3%
2.13.3.3 CuSi4Zn4MnP
Designation
Product
group
CuSi4Zn4MnP
B and C
Alloy constituents (% (m/m)):
Cu
Si
Remainder 2.5% - 4.5%
Zn
Mn
P
1.0% - 7.0%
0.01% - 0.09%
0.05% - 0.15%
Unavoidable accompanying elements (% (m/m)):
Al
Fe
Ni
Pb
Sn
≤ 0.3%
≤ 0.3%
≤ 0.10%
≤ 0.10%
≤ 0.3%
2.13.3.4 CuSi4Zn9MnP
Designation
Product
group
CuSi4Zn9MnP
B and C
Alloy constituents (% (m/m)):
Cu
Si
Remainder 2.5% - 4.5%
Zn
Mn
P
7.0% - 11.0%
0.01% - 0.09% 0.05% - 0.15%
Unavoidable accompanying elements (% (m/m)):
Al
Fe
Ni
Pb
Sn
≤ 0.3%
≤ 0.3%
≤ 0.10%
≤ 0.10%
≤ 0.3%
’
In the Annex, the following category is added:
‘2.14 Ferrous materials
2.14.1 Category boundaries
Not necessary
2.14.2 Reference material
Not necessary
2.14.3 Materials suitable for use in drinking water systems
2.14.3.1 Cast iron
Designation
Cast iron as per
EN 1561/EN 1563
Product
group
C2
Alloy constituents (% (m/m)):
Fe
C
Cr
Mo
Ni
≤ 1.0%
≤ 1.0%
≤ 1.0%
Cr
Mo
Ni
≤ 1.0%
≤ 1.0%
≤ 0.5%
2.14.3.2 Unalloyed steels
Product
group
Designation
Unalloyed steels as per
EN 10025/EN 10213
C2
Alloy constituents (% (m/m)):
Fe
C
Restrictions:
Ferrous materials may be used in contact with drinking water for components in the area of
water supply outside of drinking water systems in the case of a continuous flow of over 0.1
m/s.
In order to form a protective coating, the water must also meet the following conditions:
a)
b)
c)
d)
c(O2) > 0.1 mmol/l
pH value > 7.0
KS4,3 > 2 mmol/l
c(Ca) > 1 mmol/l’
In the Annex, the following two materials groups are added:
‘3 Coating
3.1 Electroplating of the outer surface for optical reasons
Components made from CW617N or CW612N (as per 2.6.3.1) can be electroplated with a
copper-tin layer composition.
Restrictions:

Base material for the component to be electroplated: CW617N or CW612N (as per
2.6.3.1)

Coating layer composition: 1.) Cu 2.) Sn

Coating production method: electroplating

Anode purity: ≥ 99.90%
Additional requirement:
It must be demonstrated for the production process in question that the finished products are
not contaminated with organic substances added to the electroplating bath. This can be
demonstrated with a migration test as per DIN EN 12873-1.
The proof can be provided within the framework of a permit or certification procedure. In a
procedure of this kind, testing of the metal discharge is not required. In addition, a quality
control system for the production process is required.’
and
‘4 Passive materials and copper alloys for product
group D
In addition to the materials in product groups A, B and C, additional passive metal materials
and copper alloys can be used for components in product group D.
The copper alloys must meet the following requirements:






Cu, Zn, Si, Sn, P: no restrictions
Al, Fe, Mn: max. 3.0% (m/m)
Pb: max. 3.5% (m/m)
Ni: max. 3.0% (m/m)
As, Sb: max: 0.25% (m/m)
All other elements: max. 0.1% (m/m)’