Dear friends,
I am in need of the following standard , please share if your have those

ISO 6552: 1980/ (BS 6023: 1981): Glossary of technical terms for automatic steam traps.
ISO 6553: 1980/CEN 26553: 1991 (Replaces BS 6024: 1981) Marking of automatic steam traps.
ISO 6554 1980/CEN 26554: 1991 (Replaces BS 6026: 1981) Face-to-face dimensions for flanged automatic steam trap.
ISO 6704: 1982/CEN 26704: 1991 (Replaces BS 6022 : 1983) Classification of automatic steam traps
ISO 6948:1981/ CEN 26948: 1991 (Replaces BS 6025: 1982) Production and performance characteristic tests for automatic steam traps.
ISO 7841: 1988/CEN 27841: 1991 (Replaces BS 6027: 1990) Methods for determination of steam loss of automatic steam traps.
ISO 7842: 1988/CEN 27842: 1991 (Replaces BS 6028: 1990) Methods for determination of discharge capacity of automatic steam traps.

Thanks you very much!