ISO 3621:1994
Photography - Processing chemicals - Specifications for sodium tetraborate decahydrate

Standard No.

ISO 3621:1994

Release Date

1994

Published By

International Organization for Standardization (ISO)

Latest

ISO 3621:1994

Scope

Cancels and replaces the first edition (1976). Establishes criteria for the purity of photographic-grade sodium tetraborate decahydrat and specifies the tests to be used to determine the purity.

ISO 3621:1994 history

• 1994 ISO 3621:1994 Photography - Processing chemicals - Specifications for sodium tetraborate decahydrate
• 1976 ISO 3621:1976 Photographic grade sodium tetraborate, decahydrate; Specification