The ISO/TC2 International Fastener Standardization Technical Committee meeting was hosted by the Australian National Standards Agency from October 15 to October 19, 2012 in Sydney, Australia. Nearly 38 experts from 14 countries including China, Germany, the United States, France, the United Kingdom, Italy, Australia, Japan, Switzerland, Sweden, Canada, Belgium, India, and South Korea participated in the ISO/TC2 Technical Committee and Sub-Technical Committee. Conference on the standardization of fasteners for SC7, SC11, SC12, and SC14. Left: Mr. Ren Chibing, Senior Engineer, Lianyungang Xingyi Fastener Co., Ltd. Zhong: Mr. Song Weidong, General Manager of Zhejiang Shaoxing Mountain High Strength Fastener Co., Ltd. 1.ISO/TC2 Overview The current Secretary State of the ISO/TC2 Fasteners Standardization Technical Committee is Germany. The ISO Technical Committee on Fasteners has two subcommittees: TC1-fastener threads and TC2-fasteners. TC2 is divided into 5 sub-committees, namely TC2/SC7—basic standard, TC2/SC11-meter external thread fastener, TC2/SC12 metric internal thread fastener, TC2/SC13—non-metric threaded fastener , TC2/SC14 - Surface Coating Subcommittee. The technical committee has full members (P members are voting countries) and observers (O members are those who have a right to speak). In China, the National Fastener Standardization Technical Committee (SAC/TC85) participates in the ISO/TC2 Technical Committee as a P member. From the formulation, voting to issuance of ISO standards is a very serious and long work cycle, a total of PWI (pre-stage), NP (proposal stage), WD (preparation stage), CD (committee stage), DIS (inquiry) Seven phases, including phase (), FDIS (approval phase) and ISO (publishing phase). After completing the work in the CD phase, the International Standardization Technical Committee Secretariat will forward the draft DIS to the ISO Central Secretariat for DIS inquiry and its subsequent approval. Therefore, it can be said that the ISO standard is valid from the listing to the completion of the discussion until the publication needs to go through a long period of time. It is subject to extensive discussion and deliberation by experts from various countries, and more than 75% of the members must vote for it. For example, the ISO 898/1:2009 "Mechanical Performance of Fasteners, Bolts, Screws and Studs" standard has been shared for a full six years from the 2004 PWI, CD draft, and FDIS approval drafts until the 2009 release. ISO fastener standards should be the most demanding product standard or basic technical standard in international trade. Although in current international trade, fastener products are currently not directly ordered according to ISO standards, the most commonly used are DIN (Germany), EN (EU), ASTM (USA), JIS (Japan), etc., but the basis Technical standards have adopted ISO standards as much as possible, and there is a trend in the development of basic technical standards for metric and American systems. Therefore, the ISO fastener standard should be regarded as the general representative and basis of the "Metal Fastener Standard". All metric countries attach great importance to and include and convert ISO standards into their own standards. China also attaches great importance to the adoption of ISO fastener standards. Practice has proved that the adoption of ISO standards is adopted to improve the level of China's fastener standards and international standards. It is very necessary and is also very beneficial to the export trade of fasteners in China. 2. The main content of this annual meeting discussion The main contents of the review of revised standards in this session are: Four quality report certificate templates are also available in the appendix to the draft standard. It was agreed by the participants in the discussion and approved by the participating experts. It was agreed to set up an expert working group to further improve, refine, and clearly submit the draft CD to the Secretariat for discussion and review at the October 2013 annual meeting. The author believes that the ISO/WD 16228 "fastener certification document format" certificate reporting format is more worthy of reference. 2 Discussion agreed and proposed to add ISO 1891 three fastener terminology series standards: ISO 1891/2 "Fasteners - Terminology - Part 2: Vocabulary and definitions for coatings terminology of fastener plating", ISO 1891/3 "Fasteners — Terminology — Part 3: Mechanical properties and testing terminology for mechanical properties, ISO 1891/4 “Standards for the control of fastener production processes, inspections, delivery of products, acceptance inspections and quality termsâ€. China has submitted the Chinese terminology of the terminology of fastener plating before the meeting, which has been recognized by the participating experts. This is the second time that Chinese characters appear in the international fastener standards. 3 ISO / TC2/SC14 subcommittee proposed ISO 4042 (seventh draft) "Fasteners - Electroplated coatings fastener plating" revised draft, proposed galvanized coating thickness and the name of the coating, also defined the plating tight The firmware thread test applies to the specification of the torque force on the gauge, the importance of the anti-hydrogen embrittlement of the galvanized fastener and the technical requirements of the dehydrogenation treatment. The revision "stipulates the minimum corrosion resistance requirement of the plating layer. Technical parameters (data for neutral salt spray test - white corrosion, red rust), requires the relevant countries to propose a plan to the ISO Task Force in the first quarter of 2013 (China also undertakes the task of providing technical data). The standard differs from the existing version in terms of technical content and terms. The meeting also heard a presentation by a Korean technical expert on the hydrogen embrittlement test method. ISO/TC2/SC14 agreed to distribute the recommendations on the hydrogen embrittlement test method provided by the representative of Korea. 4 The meeting also discussed ISO/WD 3269 “Fasteners—Acceptance inspectionâ€, which was proposed by ISO/TC2/SC 7. This discussion mainly cancels the concept of AQL quality level that everyone is used to. According to ASME B18 The term A, B, and C quality levels for .18.1, the biggest difference is the emphasis on the quality level requirement for accepting defects "Ac = zero." The dispute over the draft is still relatively large. The author believes that once it passes the quality requirements for the export of fasteners in China, it may have a certain impact. 5ISO/ TC2/SC12, in accordance with the French proposal, agreed in principle to modify the maximum hardness 353HVmax of the 04, 5, 6 and 8 nuts in ISO 898-2:2012 "Mechanical Performance of Nuts", the process of quenching and tempering nuts Sexual requirements, attendance also made clear that the decision on this process is chosen by the manufacturer to be quenched and tempered. 6 Discussed and reviewed the series of standards for ISO 6157/1, /2, /3ref "Fasteners - Surface discontinuities fastener surface defects", the meeting also discussed some of the standard changes and new content, such as: increase ISO 6157- 4 Preliminary work items of the General Standard for Washing Surface Defects, ISO/TC 2 accepts the work item of adding and revising ISO 4759-3 "Washer Tolerance" and adding new general standards for gaskets as Part 3 of ISO 898. At the meeting, ISO/PWI 2320rev "Prevailing torque type steel nuts - mechanical and performance fastener mechanical performance against effective torque test"; ISO/DIS 1458-1, 2 "Fasteners - Hexalobular socket countersunk flat head screws" fastener pattern Standard revision and review of countersunk screws. ISO/TC2 made five resolutions respectively. China is a big country in the production of fasteners. Fastener production and overseas trade are important countries in the world. China should have the right to stand and speak in the formulation and revision of ISO international fastener standardization, and participate in international standardization activities, which is a very important and beneficial work to promote the standardization of fasteners in China. Since 2005, China has participated in many international conferences on ISO fastener standardization, actively discussed and deliberated it, and fully expressed its opinions. The latest ISO standards published in the world have a key vote in China. Our views and suggestions Has been recognized by the international community. Nowadays, the speed of development and change of international standards is quite fast. At the same time, ISO standards are also trying to absorb and adopt the latest scientific and technological achievements, technical and quality requirements of various professional developments in the standards of fasteners. This is the standard. The reason for the constant update. Basic technical requirements such as electroplating and Dacromet surface treatment have also been made to incorporate international electroplating surface treatment technology and the latest scientific and technological achievements and requirements into the standard. On the other hand, it also proposes new technical and quality requirements for the specification of fastener standards, which requires us to work hard to receive new technologies, new technologies and new processes to improve the technology of our fastener industry. And quality level. By participating in the ISO International Conference, the Chinese delegates have gained a lot. By attending international conferences, they can understand the background and procedures of international standards development, understand the difficulties and debates in the process of international standards revision, and correctly understand the international standards and adopt them. International standards play an active role. Especially after China’s accession to the WTO, in order to avoid creating technical barriers in trade, it is easier for China’s products and services to enter and occupy the international market. When formulating China’s technical regulations and standards, it should be based on international standards. Participation in international standardization activities is becoming more and more important. (Source: National Fasteners Standardization Committee) Product introduction of internal forced expansion bolt: Drop In Anchor,Drop In Wedge Anchor,Drop In Anchor Fastener,Stainless Drop In Anchors Taizhou Risco Stainless Steel Products Co.,Ltd , https://www.riscofastener.com
Right: Mr. Ding Baoping, Secretary General of the National Fastener Standardization Technical Committee (SAC/TC85) 
The International Organization for Standardization (ISO) is a global non-governmental organization and a very important organization in the field of international standardization. ISO's mission is to promote global standardization and related activities to facilitate the exchange of international products and services, as well as to develop international cooperation in knowledge, science, technology and economic activities. ISO/TC2 fasteners are one of the most important, and the earliest established, the most widely-received technical committee.
The experts attending the five-day meeting carefully listened to and reviewed the 117 standard texts, proposals and agendas of CD, DIS and FDIS submitted by ISO/TC2 sub-technical committee members SC7, SC11, SC12 and SC14 in the past year. Seriously and enthusiastically discussed and reviewed item by item. As a Member State of P, China has also reviewed various text clauses, proposals and agendas. We have also issued opinions and proposed amendments based on China’s work experience and experience in fastener standardization. Voted on the vote and received recognition and recognition from the experts of the participating countries, especially the German Secretary-General of ISO International Fasteners.
1 The Secretariat proposed the ISO/WD 16228 "Fasteners-Inspection documents fastener certification document format" discussion paper, based on the EN 10204:2005 "metal product inspection certificate format" standard, for the finished product inspection of fasteners Quality certificate mode: F2.1 - fastener certificate (certificate), F2.2 - certificate of inspection quality conforming to manufacturing quality (certificate of batch for non-specific delivery), F3 .1 - Certificate of conclusion of the inspection test report for the batch (equivalent to the 3.1B certificate mode of EN 10204) and F3.2 - Certificate of inspection test report issued by a third party.
There are two standard systems for fasteners in the world, namely American and metric systems. The US system is represented by ASTM standards. The metric system is represented by ISO standards. The two standards are different standard systems. However, some basic technical standards have a fusion. The trend, as proposed in this meeting, in the cancellation of the concept of AQL quality level, the requirements of A, B, C quality level, is the representative thinking and quality requirements model of the US standard, which is also a development trend.
The internally forced expansion bolt is easy and safe to install. It is applicable to fixed pipes, cables, heating equipment, ventilation devices, fire extinguishers, electric fans, sanitary equipment, flat steel and section steel, and ordinary steel structures.
*Body materials include stainless steel, carbon steel and other metal materials.
*Suitable for installation base materials: concrete, natural hard stone.
*This product is suitable for fixing by screws and internal teeth, installation of fire-fighting equipment, hot water pipe air conditioning and exhaust pipe, curtain wall, upside down pipe air duct ceiling, etc. in the heavy load range.
*The body is fully expanded with * * conical inner plug to be fixed in the base material, which is convenient and fast to install.
*The calibrated tensile value is obtained by testing under the condition of cement strength of 260 ~ 300kgs / cm2. The safe * * heavy load shall not exceed 25% of the calibrated value.
2012 ISO/ISO2 Fastener Technology Committee successfully held in Sydney