Standards

HB 8423.7-2023 Active

HB 8423.7-2023 Metal material identification method - Part 7: Identification of nickel-based high-temperature alloy grades using a spectrum analysis

This document specifies the methodological principles, instruments, working conditions, and identification steps for identifying high-temperature alloys (hereinafter referred to as nickel-based high-temperature alloys) with nickel as the main alloying element using spectral analysis methods. This document is applicable to the identification of all types of nickel-based high-temperature alloys listed in Table A.1. For types of nickel-based high-temperature alloys not listed in Table A.1, as long as the types of alloying elements fall within the range of elements listed in Table A.1, and the content of the alloying elements (i.e., mass fraction) is within the range defined by the determination intensity of each corresponding element in this document, they can be used for reference.

Publish Date: 2023-12-29

HB 8423.8-2023 Active

HB 8423.8-2023 Metal material identification method - Part 8: Identification of Co-based superalloy designation using spectrum analysis

This document specifies the principles, instruments, working conditions, and identification steps for identifying cobalt-based (with cobalt as the main alloying element) high-temperature alloy grades using spectral analysis methods. This document is applicable to the identification of cobalt-based high-temperature alloy grades listed in Table A.1. For cobalt-based high-temperature alloy grades not listed in Table A.1, as long as the types of alloying elements and their contents (i.e., mass fractions) are within the ranges defined by the detection limits of each corresponding element in this section, they can be used for reference.

Publish Date: 2023-12-29

HB 8679-2023 Active

HB 8679-2023 HB 8679-2023 Waterplane weight center of gravity design and control requirements

This document specifies the methodological principles, instruments, working conditions, and identification steps for identifying cobalt-based (with cobalt as the main alloying element) high-temperature alloy grades using spectral analysis methods. This document is applicable to the identification of cobalt-based high-temperature alloy grades listed in Table A.1. For cobalt-based high-temperature alloy grades not listed in Table A.1, as long as the types of alloying elements and their contents (i.e., mass fractions) fall within the ranges defined by the measurement intensities of the corresponding elements in this section, they can be used for reference.

Publish Date: 2023-12-29

HB 8690-2023 Active

HB 8690-2023 HB 8690-2023 Airplane Fuel Vapor Communication System Flame Suppressor Specification

This standard specifies the technical requirements and quality assurance provisions for flame suppressors installed in aircraft fuel ventilation systems to prevent external fire sources from entering the fuel tank. This standard applies to the design, manufacture, testing, and acceptance of flame suppressors. Flame suppressors used in inerting systems may also be implemented with reference to this standard.

Publish Date: 2023-12-29

HB 8692-2023 Active

HB 8692-2023 Civil aircraft are not allowed to clean the oil filter cartridges

This standard specifies the requirements, inspection rules, test methods, and packaging and storage for non-cleanable lubricating oil filters used in civilian aircraft. This standard applies to the design, manufacture, testing, and acceptance of non-cleanable lubricating oil filters used in civilian aircraft (hereinafter referred to as "filters").

Publish Date: 2023-12-29

HB 8693-2023 Active

HB 8693-2023 Aircraft head-up display optical measurement method

This document specifies the measurement methods for optical parameters such as the field of view of the on-board head-up display, the size of the eye box, the accuracy of the symbol position, the display offset, the line width, the display jitter, the binocular parallax, and the brightness. This document is applicable to on-board head-up displays (HUDs) with cathode ray tube (CRT) image sources. Most of the measurement methods can also be used for HUDs with other image sources.

Publish Date: 2023-12-29

HB 8695-2023 Active

HB 8695-2023 HB 8695-2023 method of safety test for transparent window pane of aircraft

This standard specifies the test conditions, test specimens, test equipment and fixtures, test procedures, test results, and test reports for the safety test of aircraft window panes in the event of damage. This standard applies to aircraft window panes with a double-layered hollow structure. Other similar-structured aviation transparent parts can be used for reference.

Publish Date: 2023-12-29

HB 8696-2023 Active

HB 8696-2023 Aircraft component radiographic inspection quality gauge

This document specifies the common materials, styles, selection criteria, and quality requirements for linear and hole-type image intensifiers used in the radiographic inspection of aeronautical components. This document is applicable to linear and hole-type image intensifiers used in the radiographic inspection of aeronautical components.

Publish Date: 2023-12-29

HB 8697-2023 Active

HB 8697-2023 Making and evaluating the standard aluminum alloy flat bottom hole ultrasonic testing specimen

This document specifies the specifications and types of standard test blocks with aluminum alloy flat-bottomed holes for ultrasonic testing, material requirements, production procedures and requirements, and the testing and evaluation of the test blocks. This document is applicable to the production and evaluation of standard test blocks with aluminum alloy flat-bottomed holes for ultrasonic testing.

Publish Date: 2023-12-29

HB 8698-2023 Active

HB 8698-2023 Method for determining the nominal strength reference value of detail fatigue of metal material during punching process

This document specifies the specimens, testing devices, testing procedures, test data processing, and test reports for determining the fatigue rating strength reference values of open-hole details in metal materials. This document is applicable to determining the fatigue rating strength reference values of open-hole details in metal materials at room temperature.

Publish Date: 2023-12-29

HB 8699-2023 Active

HB 8699-2023 HB 8699-2023 Metal Material Detail Fatigue Roughness Coefficient Measurement Method

This document specifies the specimens, test devices, test procedures, test data processing, and test reports for determining the fatigue roughness coefficient of metal materials at the microscopic level. This document is applicable to determining the fatigue roughness coefficient of metal materials under room temperature conditions, without stress concentration details of fasteners.

Publish Date: 2023-12-29

HB 8701-2023 Active

HB 8701-2023 HB 8701-2023 Civil Aircraft Fuel One-way Valve Specification

This document specifies the technical requirements, quality assurance provisions, and packaging and storage requirements for one-way valves used in civil aircraft fuel systems. This document is applicable to the design, manufacture, testing, and acceptance of one-way valves used in civil aircraft fuel systems (with fuel and fuel vapor as the medium).

Publish Date: 2023-12-29