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Buscador de normas

Buscador de normas

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Número de resultados: 3.573

UNE
Vigente
2025-01-15

Calidad del agua. Determinación espectrofotométrica del contenido de clorofila-a por extracción con etanol para la monitorización de rutina de la calidad del agua.

UNE
Vigente
2025-01-01

Requisitos de seguridad de equipos eléctricos de medida, control y uso en laboratorio. Parte 2-201: Requisitos particulares para equipos de control. (Ratificada por la Asociación Española de Normalización en enero de 2025.)

CEN
PUBLISHED
2024-10-09

Testing and evaluating the performance of devices for electrocatalytic CO2-reduction

CEN
PUBLISHED
2021-12-15

Liquid chromatography at critical conditions (LCCC) - Chemical heterogeneity of polyethylene oxides (ISO/TS 23973:2020)

IEC
VIGENTE
2023-09-20

Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-033: Particular requirements for hand-held multimeters and other meters for domestic and professional use, capable of measuring mains voltage

IEC
VIGENTE
2023-09-20

Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-030: Particular requirements for equipment having testing or measuring circuits

IEC
VIGENTE
2023-09-20

Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-033: Particular requirements for hand-held multimeters and other meters for domestic and professional use, capable of measuring mains voltage

IEC
VIGENTE
2023-09-20

Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 2-030: Particular requirements for equipment having testing or measuring circuits

ASTM
Active
2025-01-01

Standard Test Method for Purity of Isophorone by Capillary Gas Chromatography

ASTM
Active
2025-01-01

Standard Test Method for Trace Benzene in Hydrocarbon Solvents by Capillary Gas Chromatography

ASTM
Active
2024-12-01

Standard Test Method for Determination of Carbon in Refractory and Reactive Metals and Their Alloys by Combustion Analysis

ASTM
Active
2024-12-01

Standard Guide for Determination of Plutonium and Neptunium in Uranium Hexafluoride and U-Rich Matrix by Alpha Spectrometry

ASTM
Active
2024-12-01

Standard Practice for Determination of Chromium Treatment Weight on Metal Substrates by X-Ray Fluorescence

ASTM
Active
2024-12-01

Standard Test Methods for Determining the Biobased Content of Solid, Liquid, and Gaseous Samples Using Radiocarbon Analysis

ASTM
Active
2024-11-01

Standard Test Method for Determination of Individual Components in Spark Ignition Engine Fuels by 50-Metre Capillary High Resolution Gas Chromatography

ASTM
Active
2024-11-01

Standard Practices for Infrared Multivariate Quantitative Analysis

ASTM
Active
2024-11-01

Standard Specification for Disproportionation (TDP) Toluene

ASTM
Active
2024-11-01

Standard Test Method for Determination of the Weight Percent Individual Volatile Organic Compounds in Air-Dry Low VOC Coatings by Gas Chromatography

ASTM
Active
2024-11-01

Standard Practice for Testing Nitrogen/Phosphorus Thermionic Ionization Detectors for Use In Gas Chromatography

ASTM
Active
2024-11-01

Standard Practice for General Techniques of Thermogravimetric Analysis (TGA) Coupled With Infrared Analysis (TGA/IR)

ASTM
Active
2024-11-01

Standard Practice for Testing Electrolytic Conductivity Detectors (ELCD) Used in Gas Chromatography

ASTM
Active
2024-11-01

Standard Practice for Qualifying Spectrometers and Spectrophotometers for Use in Multivariate Analyses, Calibrated Using Surrogate Mixtures

ASTM
Active
2024-11-01

Standard Practice for Near Infrared Qualitative Analysis

ASTM
Active
2024-10-01

Standard Practice for Sampling of Process Vents with a Portable Gas Chromatograph

Número de resultados: 3.573