Electrical protection relays. Requirements for the principal families of protection relays -- Specification for thermal electrical relays

Specification for Single Input Energizing Quantity Measuringrelays With Non-Specified

Specification for Single Input Energizing Quantity Measuringrelays With Dependent Spec

Electrical protection relays. Requirements for single input energizing quantity relays -- Specification for single input energizing quantity measuring relays with non-specified time or independent specified time

Electrical protection relays. Requirements for single input energizing quantity relays -- Specification for single input energizing quantity measuring relays with dependent specified time

Specification for Biased (Percentage) Differential Relays

Specification for Directional Relays and Power Relays

Electrical protection relays. Requirements for multi-input energizing quantity relays -- Specification for biased (percentage) differential relays

Electrical protection relays. Requirements for multi-input energizing quantity relays -- Specification for directional relays and power relays

Specification for cleanliness of fillings and stuffings for bedding, upholstery, toys and other domestic articles

Cleanliness of fillings and stuffings for bedding, upholstery and other domestic articles -- Specification for fillings and stuffings other than feather and/or down

Cleanliness of fillings and stuffings for bedding, upholstery and other domestic articles -- Specification for feather and/or down fillings and stuffings

Gas surface boxes

Tests for water used in steam generation control tests

Microchemical apparatus. Combustion trains for the determination of elements -- Specification for carbon and hydrogen combustion train (Pregl type)

Microchemical apparatus. Combustion trains for the determination of elements -- Specification for nitrogen combustion train (micro-Dumas)

Microchemical apparatus. Combustion trains for the determination of elements -- Specification for halogens and sulphur combustion train (micro-Grote)

Microchemical apparatus. Combustion trains for the determination of elements -- Specification for rapid method combustion tubes (Belcher and Ingram type) and absorption tube

Microchemical analysis. Apparatus for the determination of elements by other than combustion methods. Specification for nitrogen determination apparatus (micro-Kjeldahl)

Microchemical analysis. Apparatus for the determination of elements by other than combustion methods -- Specification for ammonia distillation apparatus (Markham)

Microchemical apparatus. Apparatus for the determination of elements by other than combustion methods. -- Specification for nitrogen determination apparatus (non-transference micro-Kjeldahl)

Alkoxyl and alkylimino group apparatus for the determination of organic groups

Microchemical apparatus. Apparatus for the determination of organic groups. -- Specification for acetyl group determination apparatus (Wiesenberger)

Microchemical apparatus. Volumetric analysis -- Specification for burettes with pressure-filling device and automatic zero

Microchemical apparatus. Volumetric analysis -- Specification for micro-nitrometer (Pregl type)