Photography. Processing chemicals. Specification for anhydrous sodium thiosulfate and sodium thiosulfate pentahydrate Ingestion-build-126766 BS 476-13 provides you with

BS 476-13 provides you with test and test results with background information for the ignitability of products subjected to thermal irradiance

Clause 5 "Safety" has been revised

BS EN 12522-2:1998 Furniture removal activities

Glare restriction

The output of the assurance engagement

Photography. Processing chemicals. Specification for anhydrous sodium thiosulfate and sodium thiosulfate pentahydrate Ingestion-build-126766 BS 476-13 provides you with1 Scope This International Standard specifies the purity requirements and describes the tests for photographic grade anhydrous sodium thiosulfate and sodium thiosulfate pentahydrate.