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Carbonaceous materials for the production of aluminium — Pitch for electrodes — Determination of contents of…

Overview ISO 6791:1981 specifies a conventional gravimetric method to determine the content of quinoline‑insoluble material in pitch for electrodes used in aluminium production. The standard describe…

Polyglycols for industrial use — Determination of hydroxyl number — Phthalic anhydride esterification method

Overview ISO 6796:1981 specifies a standardized method for determining the hydroxyl number in polyglycols intended for industrial use. This method employs the phthalic anhydride esterification techni…

Reciprocating internal combustion engines — Measurement of sound power level using sound pressure — Part 2: S…

Overview ISO 6798-2:2020 - "Reciprocating internal combustion engines - Measurement of sound power level using sound pressure - Part 2: Survey method" specifies a standardized survey method to measur…

Cement — Test methods — Determination of strength

Overview ISO 679:2009 - Cement - Test methods - Determination of strength defines the standardized procedure for measuring the compressive (and optionally flexural) strength of cement mortar. The met…

Equipment for fire protection and fire fighting — Graphical symbols for fire protection plans — Specification

Reciprocating internal combustion engines — Measurement of sound power level using sound pressure — Part 3: S…

Overview ISO 6798-3:2022 specifies an in situ survey method to determine the sound power level of reciprocating internal combustion engines using measured sound pressure. Applicable to engines covere…

Reciprocating internal combustion engines — Measurement of emitted airborne noise — Engineering method and su…

But-2-ene 1,4-diol for industrial use — Determination of iodine value

Road vehicles — Motor vehicles — Production conformity requirements for flasher units

Overview ISO 6797:1982 is an international standard that establishes production conformity requirements for flasher units used in road motor vehicles, excluding motorcycles. Developed by ISO Technica…

Phthalic and adipic esters for industrial use — Determination of free alcohols content — Spectrometric method

Reciprocating internal combustion engines — Measurement of sound power level using sound pressure — Part 1: E…

Overview ISO 6798-1:2020 - "Reciprocating internal combustion engines - Measurement of sound power level using sound pressure - Part 1: Engineering method" - defines an engineering-grade procedure to…

Animal and vegetable fats and oils — Determination of composition of the sterol fraction — Method using gas c…

Animal and vegetable fats and oils — Determination of composition of the sterol fraction — Method by gas-liqu…

Butane-1,4-diol for industrial use — Determination of degree of unsaturation

Butadiene for industrial use — Determination of oxygen and argon in the gaseous phase above liquid butadiene…

Reciprocating internal combustion engines. Measurement of sound power level using sound pressure - Engineerin…

What is ISO 6798-1 about? ISO 6798-1 specifies the engineering method, which is the measurement method of the sound power level for reciprocating internal combustion engines. ISO 6798-1 applies to al…

Reciprocating internal combustion engines. Measurement of sound power level using sound pressure - Survey met…

What is ISO 6798-3 - Sound pressure measurement about? ISO 6798-3 is an international organisation for standardization that specifies the measurement method of sound power level for reciprocating int…

Reciprocating internal combustion engines. Measurement of sound power level using sound pressure - Survey met…

What is ISO 6798-2 about? ISO 6798-2 specifies the survey method, which is the measurement method of the sound power level for reciprocating internal combustion engines. ISO 6798-2 applies to all rec…

Reciprocating internal combustion engines. Measurement of emitted airborne noise. Engineering method and surv…

1 Scope 1.1 This International Standard specifies methods for measuring the sound pressure levels on a measurement surface enveloping a source, and for calculating the sound power level produced by t…