GB 15210-2018General specifications for walk-through metal detectors (English PDF)

1 Scope

China's mandatory specification for walk-through metal detector archways - the doorframes at airport and station security, at courthouses, stadiums and government buildings, through which every person passes and which have to decide, in the second it takes to walk through, whether someone is carrying metal that matters. It is the companion of GB 12899 on the hand-held wand: the archway makes the first, fast decision and the wand localises what it found. The standard specifies the technical requirements, the test methods, the inspection rules, the identifications, marks, labels and packaging and the accompanying technical documentation of walk-through metal detectors. The requirements are built around a problem that has no comfortable answer. Sensitivity must be high enough to find a small blade carried at any point of the body, including the positions people use precisely because detectors are weak there - the ankles, and the centre of the archway at head height. But an archway that alarms on belt buckles and keys stops a queue, and one that is turned down to keep the queue moving is not a detector any more. The standard therefore fixes the detection sensitivity against defined test pieces at defined positions in the aperture, the uniformity of the detection field through the whole opening so that there is no weak zone, the discrimination and the ability to reject small personal items, the localisation of the alarm by zone, the walk-through speed at which the figures must still hold, and the immunity to a second archway or a scanner operating nearby - the arrangement in which these machines are almost always installed. To that are added the electrical safety, the environmental and electromagnetic programme, and the requirement that the equipment be safe for people with pacemakers and other implanted devices. Issued on 19 November 2018 and in force since 1 December 2019, it replaces GB 15210-2003.

This Standard specifies technical requirements, test methods, inspection rules, identifications, marks, labels and packaging, accompanying technical documents of walk-through metal detector. This Standard is applicable to the walk-through metal detector that detects metal weapons and metal prohibited goods. The walk-through metal detectors for other usages may refer to this Standard.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

GB/T 2423.1-2008, Environmental testing - Part

3 Terms and definitions

For the purposes of this document, the following terms and definitions apply.

3.1 walk-through metal detector A metal detection device. Its structure is generally a door frame erected on the ground. When a person walks through it, the device can detect whether the passer carries metal that reaches or exceeds a limited amount.

3.2 detector region A space range in the pedestrian crossing of walk-through metal detector.

3.3 detector plane A virtual plane in the detector region. It is perpendicular to the pedestrian passing direction, as shown in plane ABCD in Figure 1.

3.4 positive alarm When a metal object that reaches or exceeds a limited amount passes through the detector plane, the walk-through metal detector emits an alarm signal with the specified display and sound.

3.5 alarm failure When a metal object that reaches or exceeds a limited amount passes through the detector plane, the walk-through metal detector has no alarm.

4 Classification

According to the detection class, the walk-through metal detector (hereinafter referred to as "metal detector") is divided into class I, class II, class III and mixed class.

5 Technical requirements

5.1 Appearance The appearance of metal detector shall meet the following technical requirements.

7 Inspection rules

7.1 Inspection type and grouping According to GB/T 6587-2012, inspection is divided into two types. identification inspection and quality consistency inspection. And according to the product performance characteristics, all the inspection items are divided into six inspection groups, A~F.

7.2 Inspection item The inspection items under different inspection types shall be carried out in accordance with the provisions of Table 5.

7.3 Defect determination and classification According to the degree of impact of defects on the performance of metal detector, it is divided into the following 3 types.

7.4 Sampling of inspection samples and determination of conformity Sampling and conformity determination are conducted according to the relevant requirements in Clause 6 of GB/T 6587-2012.AQL value range shall not be greater than 6.5.

8 Identification, marks, labels and packaging

8.1 Identification Product identification shall meet the following requirements.

8.2 Marks and labels The product marks and labels shall meet the following requirements.

8.3 Packaging Measures such as moisture-proof, pressure-proof, collision-proof and shock absorption shall be taken to ensure that the detector structure and circuit components shall not be damaged during normal loading, unloading, transportation and storage.

9 Accompanying technical document

9.1 Overview A user manual in Chinese shall be provided with the metal detector and shall include the following as detailed as possible.

9.2 Technical description The technical description shall contain the followings.

9.3 Instructions Instructions shall include the followings.