New GOST 59286-2020 "Non-destructive testing. Leak detection. Terms and definitions"

The company EXPERT NK LLC took an active part in the development of GOST 59286-2020 "Non-destructive testing. Leak detection. Terms and definitions", which comes into force on March 1, 2021 on the basis of the Order of the Federal Agency for Technical Regulation and Metrology No. 1436-st dated December 29, 2020

This document introduces new terms and definitions of basic concepts in the field of leak detection during non-destructive quality control of materials, semi-finished products of vessels, apparatus, boilers and pipelines. The standard takes into account trends and approaches used in European and other international standards in the field of leak detection. The terms established by the standard are intended for use in all types of documentation, scientific and technical, educational and reference literature in the field of leak detection.

The standard defines the following terms:

• Auto calibration
• Leak Analyzer
• Leak size
• Ballast substance
• Test substance
• Working substance (working environment)
• Capacity
• holding time
• tightness
• Absolute pressure
• Atmospheric pressure (barometric)
• Vacuum pressure (vacuum)
• Internal pressure / external pressure
• Overpressure
• Test pressure
• partial pressure
• Test pressure
• Operating pressure
• pressure allowed
• Design pressure
• Conditional pressure
• through defect
• Reliability of tightness control
• Instrument drift
• Mode of flow of the medium (gas) molecular
• Leak test
• Density Tests
• Control system calibration
• Vacuum chamber
• External pressure chamber
• The camera is sealed
• Tightness class
• Sensitivity class of leak detection systems
• Traceability
• Leak test
• Local tightness control
• Total tightness control
• Concentration
• Leak localization
• acoustic method
• Vacuum method
• High frequency discharge method
• Gas method
• Halogen method
• liquid method
• Sound resonant method
• infrared method
• spark method
• Capillary method
• Catharometric method
• Kerosene test method
• Contact acoustic method
• Fluorescent color method
• Luminescent method
• Manometric method
• Mass spectrometric method
• Non-contact acoustic method
• Method of residual stable deformations
• Plasma method
• Semiconductor sensor method
• bubble method
• The method is radioactive
• Leak detection method
• Photoionization method
• Chemical method
• Color method (chromatic)
• Electrospark method
• Electrocapturing method
• Brightness method (achromatic)
• leakage
• Leakage
• Local leakage
• Leakage total
• Tightness rate
• blower
• Outgassing
• Test sample (simulator of the control object)
• Object sealed
• Object of control
• Crimping
• Blocking leaks
• Rejection threshold (rejection level)
• Sensitivity threshold of a method, method, means of control, tightness control system (threshold sensitivity of a method, method, means, system)
• Leak detector time constant (response time)
• Medium flow (gas)
• Permeability
• leak
• Medium consumption
• Counterflow mode
• Direct stream mode
• Medium flow regime viscous
• The flow regime of the medium is molecular-viscous
• background signal
• Leak detection system
• Aquarium way
• Baro aquarium method
• Vacuum method
• Vacuum chamber method
• Helium chamber method
• Hydraulic method with luminescent indicator coating
• Leak test method
• Local vacuum chamber method
• Luminescent-hydraulic method
• Vacuum accumulation method
• Sample gas accumulation method at atmospheric pressure
• Method of pouring water without pressure
• blowing method
• Soaping method
• Crimping method
• Method of pressing with external pressure
• Method of pressure testing of closed shells with test gas
• Immersion crimping method
• Foam indicator method
• Purge method
• Vacuum bubble method
• Thermal vacuum method
• Leak detection method
• Chemisorption method (chemical)
• Probe method
• Wednesday
• Wednesday control
• Leak testers
• Leak detection tools
• Indicator tool
• The degree of tightness of the control object
• The degree of leakage of the control object
• Operating temperature
• Design temperature
• Leak detection technique
• leak detection
• leak detector
• Flow
• virtual leak
• Leak calibrated control
• Control leak
• leak realistic
• The leak is real
• Leak test conditions
• Zeroing the leak detector
• A leak
• Leak detector sensitivity
• Leak probe

GOST 59286-2020 takes into account the trends and approaches used in the following international standards: ISO 20484:2017 (E) Non-destructive testing - Leak testing - Vocabulary, NEQ, as well as EN 1330-8:1998 "Non-destructive testing. Terminology. Part 8: Terms and definitions in leak tightness testing" (Non-destructive testing – Terminology – Part 8: Terms used in leak tightness testing, NEQ).