ISO/R 1457:1970/Amd 1

Title missing - Legacy paper document

General Information

• Status: Withdrawn
• Publication Date: 31-Dec-1969
• Technical Committee: ISO/TMBG - Technical Management Board - groups
• Drafting Committee: ISO/TMBG - Technical Management Board - groups
• Current Stage: 9599 - Withdrawal of International Standard
• Completion Date: 01-Jan-1975

Relations

• Consolidated By: ISO 15614-6:2006 - Specification and qualification of welding procedures for metallic materials — Welding procedure test — Part 6: Arc and gas welding of copper and its alloys
• Effective Date: 28-Feb-2023

Standards Content (Sample)

Ref, No. : IW/R 1457-1970/A1-1972 (E)
-1-
UDC 669.387’248’268 : 620.198
FOREWORD
Amendment 1 to IS0 Recommendation R 1457-1970 (originally Draft IS0 Recommendation No. 2357) was drawn
up by Technical Committee ISO/TC 107, Metallic and other non-organic coatings.
It was approved in October 1971 by the Member Bodies of the following countries :
Australia Ireland South Africa, Rep. of
Austria Israel Sweden
Egypt, Arab Rep. of Italy Switzerland
France Netherlands Thailand
Germany New Zealand United Kingdom
Hungary Romania U.S.S.R.
No Member Body expressed disapproval of the document.
Amendment 1 - May 1972 - to IS0 Recommendation R 1457-1970
Amendment 1
to IS0 Recommendation R 1457-1970
ELECTROPLATED COATINGS FOR COPPER PLUS NICKEL
PLUS CHROMIUM ON STEEL (OR IRON)
Clause 6.3.3
Delete the symbol “m” for micro-cracked chromium and substitute the symbol “mc”.
Add the following text after the paragraph now beginning “mc - for micro-cracked chromium” :
“mp - for micro-porous chromium***, containing a minimum of 10 O00 pores per cmz when determined
by the method given in Annex D, section D.2, and having a minimum thickness of 0.3 pm. The pores should
be invisible to the unaided eye.
There may be some loss of lustre after a period of service in the case of mp chromium deposits which could be
unacceptable in some applications. This tendency can be reduced by increasing the chromium deposit
thickness in every case where micro-porous chromium is specified in Table 1. The modified designation to be
used in such cases in place of Cr mp is as follows :
Cr mp 0.5
The figure refers to the minimum thickness of chromium in micrometres.”
Add the following footnote :
“ *** This is commonly achieved by depositing chromium over a,specia
...