GB16161-2021

Regulations for the shape of the marks of maritime buoyage system in China

中国海区水上助航标志形状显示规定

GB 16161-2021 は現行の中国強制国家規格です：Regulations for the shape of the marks of maritime buoyage system in China。業界：機械。テーマ：製品安全。施行日：2022年3月1日。

適用可否は製品範囲、認証ルート、所管当局の通知、移行規定によって異なります。コンプライアンス判断に使う前に、翻訳をご依頼いただくか公式情報源をご確認ください。

コンプライアンス概要

この概要は現在英語のみで提供しています。

適用範囲

This standard specifies the shape display requirements for maritime buoyage marks in China, including conical, cylindrical, spherical, and cross-shaped topmarks. It is applicable to all buoys and fixed marks in water within China's sea areas, ports, and estuaries. It explicitly excludes lightships, large navigational buoys, and ice buoys. Engineers designing or manufacturing maritime aids to navigation must ensure their products comply with these visual shape regulations.

技術要求

The standard outlines the geometric and proportional requirements for various buoy shapes. It specifies that the shape characteristics of buoys and fixed marks must be displayed through topmarks, daymarks, or body shapes. These shapes must be identifiable from any horizontal direction, except for the 'x' and '+' shaped topmarks. For conical shapes, the standard defines the proportional relationships between the topmark diameter, height, and support rod dimensions relative to the float body diameter. Similar proportional constraints are established for cylindrical (can) shapes and spherical shapes, ensuring consistent visual identification. Additionally, the standard introduces requirements for the 'x' and '+' shaped topmarks, specifying their square dimensions and diagonal/centerline widths. It also mandates that the hollow area of topmarks and daymarks must not exceed one-third of the total area and must be evenly distributed. The standard references GB 4696 for general buoyage system rules and GB 17381 for surface color specifications.

試験方法

The standard primarily involves visual and dimensional verification rather than complex laboratory testing. Compliance is assessed by measuring the geometric proportions of the topmarks, daymarks, and buoy bodies against the specified ratios relative to the float body diameter. Engineers must verify that the physical dimensions and visual profiles meet the defined geometric criteria for each shape type. The assessment also includes checking the uniformity and area ratio of any hollow sections in the marks.

よくある質問

What products are regulated under GB 16161-2021?

GB 16161-2021 regulates the shape display of maritime buoyage marks, including all buoys and fixed marks in water within China's sea areas, ports, and estuaries. It excludes lightships, large navigational buoys, and ice buoys.

Are there any updates from the previous version of GB 16161?

Yes, GB 16161-2021 replaces GB 16161-1996. Key updates include adding general provisions for shape characteristics and surface colors, modifying the shape display features for conical and can topmarks, adding descriptions and illustrations for various buoy body shapes, and introducing requirements for '+' shaped topmarks.

Does GB 16161-2021 reference any other standards?

Yes, the standard references GB 4696 for the general rules of the maritime buoyage system in China and GB 17381 for the specifications of surface colors for visual aids to navigation.

The summary above provides a high-level overview of GB 16161-2021. To ensure complete compliance for your maritime buoyage products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 16161-2021 today to access all detailed parameters, proportional tables, and illustrative figures.

適用のヒント

種別: 安全
CCS: R 63
ICS: 03.220.40
所管部門: Ministry of Transport
技術委員会: Ministry of Transport