Iso 2093-1986

 

International , INTERNATIONAL

 .   e   n    i    l   n   o   n   o    i   s   r   e   v    l    l   u    f   e    h    t   s   s   e   c   c    A  .   e    l   p   m   a   s   e   g   a   p    4   e   e   r    f   a   s    i   s    i    h    T

ORGANIZATION

FOR STANDARDIZATION.ME~YHAPOJJHAR

Electroplated methods D6pO ts 6lec tro/ytiques

Second

UDC

edition

coatings d ‘4 tain -

-

Standard

Spkifications Spkificatio ns

OPrAHM3AUMR

of tin et mkthodes

-

fl0 CTAH,QAPTM3Ai&4M~ORGANISATlON

Specification

D E NORMALlSATlON

and test

d’essai

1986-12-15

Ref. No.

669.687

Descriptors

INTERNATIONALE

: metal coatings,

electrodeposited

coatings,

tin coatings,

ciassifications,

specifications,

tests,

determination,

ISO 20934986 (E) thickness,

Price b ased

ad hesion.

on 8 pages

 

Foreword

 .   e   n    i    l   n   o   n   o    i   s   r   e   v    l    l   u    f   e    h    t   s   s   e   c   c    A  .   e    l   p   m   a   s   e   g   a   p    4   e   e   r    f   a   s    i   s    i    h    T

ISO (the International Organization for Standard Standardization) ization) is a worldwide federation of national Standards bodies (ISO member bodies). The work of prepa preparing ring International Standards is normally carried out through ISO technical committees. Esch member body interested in a subject for which a technical committee has been established has the right to be represented on that commit committee. tee. International organization organizations, s, governmental and non-governmental, non-governmental, in liaison with ISO, also take patt in the work. work. Draft International International Standards adopted by the technical committees are circulated to the member bodies for ap approval proval before their acceptance acceptance as International Standards by the ISO Council. They are approved in accordance with ISO procedures requiring at least 75 approval by the member bodies voting. International Standard ISO 2093 was prepared by Technical Committee International Me taliic and o ther non-organic cos tings.

ISO/TC

107,

This second edition cancels and rreplaces eplaces the first edition (ISO 2093 2093-1973), -1973), of which which it constitutes a technical revision. Users should note th that at all Internationa Internationall Standards undergo revision from time to time and that any reference reference made herein herein to to any other International Standard implies its latest edition, unless otherwise stated.

0

International

Printed

Organ kation

in Switzerland

for Standardkation,

1986

l

 

INTERNATIONAL

ISO 20934986 (EI

STANDARD

Electroplated

coati,ngs

of tin

-

Specification

and test

methods 0

Introduction

ISO 2177, Metallic Metallic coatings Measurement of coating Coulometric Coulometri c method by anodic dissolution. disso lution. thickness

This International International Standard specifies requirements for electroplated coatings of tin o on n fabricated metal articles articles to protect protect them from corrosion and to facilitate soldering.

 .   e   n    i    l   n   o   n   o    i   s   r   e   v    l    l   u    f   e    h    t   s   s   e   c   c    A  .   e    l   p   m   a   s   e   g   a   p    4   e   e   r    f   a   s    i   s    i    h    T

Attention is drawn to legislative requirement s that exist in many countries for tin coati coatings ngs used in the food industry. Annex C gives a additional dditional information information

as guidance to the User.

It is essential that the purchaser purchaser should mation itemized in 4.1 and, if appropriat e, ISO 2093 without

1

this information

state the inforinfor4.2. Specifying

is insufficient.

ISO 2819, Metallic coatings on metallic Substrates - Electrodeposited and chemicall chemicallyy deposited coatings - Review of me thods a vailable for tes ting adhesion . ISO 2859, Sampling procedures and tables for inspection inspection by attributes. 2) IS 0 3497, Metallic cos tings Measureme n ts of thickness - X-ray spectrometric spectrometric methods.

cos ting

ISO 3543, Metallic an d non-metallic coatings - Measuremen ts of thickness - Beta backscatter method.

Scope a nd field of application

ISO 3768, Metallic tes tl.

coatings

-

Neutral s alt Spray test (NSS

This Internation International al Standard specifies requirements for electroplated coatings of nominally pure tin on fabricated metal articles. The coatings may be dull or bright as electroplated electroplated or may be flow-melted by fusion after electropla ting.

ISO 4519, Electrodeposit Electrodeposited ed metallic metallic coatings and related related finishes - Sampling procedures for inspection by attributes. attributes.

lt does not apply to

ISO 8988, Metallic Metallic and other non-organic non-organic coatings dioxide fest with general condensation of moisture.

a)

threaded components ;

b)

tin-coated

IEC Publicatio Publication n 68-2-20, Basic cedures - Test T: Soldering.

topper wire;

environment environmental al

-

testing

Sulfur

pro-

c) coatings on sheet, Strip or wire in unfabricated form, or on articles made from them; d) coatings on coil springs; e) coatings applied by Chemical autocatalytic autocatalyt ic or “electroless”) ;

means

(immersion,

f) electroplatin g of steels with tensile strength gr eater than 1 000 MPal) (or of corresponding corresponding hardness), because such steels are subject to hydrogen embrittlement embrittlement (sec 8.2).

2

References

ISO 1463, Metalli Metallicc and Oxide coatings cos ting thickness - Microscopical method.

Measurement

of

ISO 2064, Metallic and other non-organic coatings - Definitions and conventions concerning the measurement of thickness.

1)

1MPa=1N/mm2

2)

At present

at the Stage of draft.

(Revision

of ISO 2859-1974.)

3

Definitions

For the purpose of this this International definitions apply.

Standard,

the following following

31 significantt significan surface : The part of the article covered or to be covered by the coating and for which which the coating is essential for serviceability serviceability and/or appearance. (Definition (Definiti on

taken from ISO 2064.)

3.2 flow-melting ; fusing ; flow-brighte ning ; reflowing : A process by which which a coating is melted in Order Order to impart desirable properties such as brightness or improved solderability (see clause C.4).

 

ISO 20934986 (E)

4 Information to be supplied to the electroplater

by the purchaser

7

Classif ication

7.1 4.1

Essential

information

The following information the electroplate r :

the number of this IInternation nternational al

b)

the nature of the basis material (see clause 5);

Standard;

number

exceptionally severe - for example Service Service outdoors in

severe corrosive conditions or contact with food or drink where a complete cover of tin has to be maintained maintained against corrosion and abrasion (sec C. 1.1).

condition number (see 7.1) or the classi classifific) the Service condition cation code of the coating required (see 7.2);

3 : severe for example temperate conditions

d) the significant surface of the article to be electroplated indicated, for example, by drawings or by the Provision of suitably marked samples ;

2 : moderate condensation

g)

marks and

the method of adhesion adhesion testing to be used (sec 10.3).

Additional

information

any hea heatt treatment

b)

any requirements requirements

required (sec cla clause use 8) ; for po porosity rosity testing (see 10.4);

between

When

specifying

classification

Code,

it should

7.2

the Service be noted or in those

condition

that

tin

containing

number

is susceptible certain

or coating to darnage

organic

vapours.

ser-

in abrasive See also

d)

any special req requirements uirements for un undercoats dercoats (sec clause 9) ;

e)

a Sample showing the required finish (sec 10 10.1) .1) ;

f)

any special pretreatmen pretreatmentt

i)

treatment.

code

where a indicates the Chemical Symbol for the basis metal (or for the main constituent if an alloy) ; b indicates the Chemical Symbol for the undercoat metal (or for the main constituent if an alloy) followed by a figure for its minimum coating thick ness, in micrometres , and is omitted if no undercoa t is required [see 4.2 d)] ;

g) any specific requirements for the purity purity of the coating (sec clauses 0 and C.5); requirementss requirement

classification

alb c d

required;

h) any special packaging ponents; -

Coating

The coating classification code shall consist of four Parts, the first two of which which shall be separated by an oblique stroke, as follows :

cr any requirement for solderability testing and the test methods and conditions to be applied ( sec 10.5);

any special post-plating

for example Service indoors with s ome

C.I.I.

The following additional information may be required and, if so, shall be specified by the purchaser: a)

in typical

NOTE - See 10.2, which gives guidance on the relation vice condition number and minimum thickness.

environments

4.2

-

Service outdoors

1: mild - for example Service indoors in dry atmospheres atmospheres or applications where solderability is the primary requirement

the sampling sampling procedure to be adopted (sec clause 6); 6);

f) the positions where unavoidabl unavoidable e contact other defects are acceptable (sec 10.1); 10.1);

,

condition

The Service condition number indicates th e severity of the service conditions in accordan ce with the following scale: 4:

a)

e)

 .   e   n    i    l   n   o   n   o    i   s   r   e   v    l    l   u    f   e    h    t   s   s   e   c   c    A  .   e    l   p   m   a   s   e   g   a   p    4   e   e   r    f   a   s    i   s    i    h    T

shall be supplied by the purchas er to

Service

for plate plated d com-

c indicates the Chemical Symbol for tin, Sn, followed figure for its minimum thickness, in micrometres ;

bY a

d indicates the surface finis h, by the Symbol m if the coating is matt, or b if it is bright electroplat ed or f if it is flow-melted.

5

Basis material

An example is Fe/Ni 2,5 Sn 5 f which represent s an iron or steel basis metal, with a 2,5 Pm nicke1 undercoat, tin electroplated electroplated to a coating thickness of 5 Pm and flow-melted.

6

8

Sampling

Heat treatment

of steel

Stress relief before electroplating

Sampling Samplin g procedures are specified in ISO ISO 2859 and ISO 4519.

8.1

The method method of sampling and acceptance between purchaser and supplier.

Severely cold-worked steel Parts Parts shall shall be stress relie relieved ved before electroplating by heating for 1 h at 190 to 220 OC. electroplating

2

shall be agreed

 

 

This is a free preview. preview. Purchase the entire entire publication at the link below:

ISO 2093:1986 Electroplated coatings of tin Specification and test methods

 .   e   n    i    l   n   o   n   o    i   s   r   e   v    l    l   u    f   e    h    t   s   s   e   c   c    A  .   e    l   p   m   a   s   e   g   a   p    4   e   e   r    f   a   s    i   s    i    h    T

Looking for additional Standards? Visit SAI Visit SAI Global Infostore Subscribe to our  Free  Free Newsletters about Australian Standards® in Legislation; ISO, IEC, BSI and more Do you need to Manage to Manage Standards Collections Online? Online ? Learn about  about  LexConnect, All Jurisdictions, Standards referenced in Australian legislation legislation Do you want to know to know when a Standard has changed? Want to become to become an SAI Global Standards Sales Affiliate?  Affiliate?   Learn about other SAI Global Services: LOGICOM Military Parts and Supplier Database  Database  Metals Infobase Database of Metal Grades, Standards and Manufacturers Materials Infobase Database of Materials, Standards and Suppliers Database of European Law, CELEX and Court Decisions

Need to speak with a Customer Service Representative - Contact - Contact Us