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Stationary source emissions - Determination of the mass concentration of sulfur dioxide - Hydrogen peroxide/barium perchlorate/Thorin method. Original standard ISO 7934-1989 in PDF full version. Additional info + preview on request

Document status: Active

Stationary source emissions - Determination of the mass concentration of sulfur dioxide - Hydrogen peroxide/barium perchlorate/Thorin method - Amendment 1. Original standard ISO 7934-1989 amd1-1998 in PDF full version. Additional info + preview on request

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Stationary source emissions - Determination of the mass concentration of sulfur dioxide in flue gases - Performance characteristics of automated measuring systems. Original standard ISO 7935-2024 in PDF full version. Additional info + preview on request

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Coal - Determination and presentation of float and sink characteristics - General directions for apparatus and procedures. Original standard ISO 7936-2022 in PDF full version. Additional info + preview on request

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Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of Clostridium perfringens - Colony-count technique. Original standard ISO 7937-2004 in PDF full version. Additional info + preview on request

Document status: Replaced by

Aircraft - Ball bearings for control cable pulleys - Dimensions and loads. Original standard ISO 7938-1986 in PDF full version. Additional info + preview on request

Document status: Replaced by