Electromagnetic Compatibility，It refers to the ability of the equipment or system to operate in accordance with the requirements in its electromagnetic environment and not to produce unbearable electromagnetic interference to any equipment in its environment. Therefore, EMC includes two requirements: on the one hand, it means that the electromagnetic interference generated by the equipment in the normal operation process can not exceed a certain limit (EMI); on the other hand, it means that the equipment has a certain degree of immunity to the electromagnetic interference in the environment, that is, electromagnetic sensitivity (EMS).

Test scope:

Commercial and household appliances, information technology products, audio and video products, lamps products, toys products, institutions and electric tools products.

The goal of LVD is to ensure the safety of low voltage equipment in use. The instruction applies to electrical products with voltages ranging from 50V to 1000V and 75V to 1500V. The instruction contains all safety rules for the equipment, including protection against mechanical hazards. The design and structure of the equipment shall ensure that no hazards occur when used under normal working conditions or under failure conditions, in accordance with its intended use, in particular the following hazards are assessed:

1) Electric Shock; 2) Dangerous Energy Hazard; 3) Fire;

4) Mechanic and heat hazard; 5) Radiation hazard;

6) Chemical Hazard.

LVD

安规测试中有安规要求的零部件包括：

电源线（flexible cables and cords），插头（plug），插座（socket-outlet），耦合器（coupler），连接　器（connector），AC Inlet，SOCKET,X/Y 电容（X /Y capacitor），保险丝（Fuse），开关（switch）， 温控器（thermostat），调光器（dimmer），定时器（timer），转换器（converter），马达（motor），喇叭（Speaking），镇流器（ballast），继电器（relay），非整体灯座（lamp holder），保险座（fuse-holder）。

HTT实验条件符合认证项目：

中国CCC，CQC；日本PSE；韩国KC，欧洲CE，GS，RED；美洲UL，ETL，CSA；澳洲SAA

实验室提供现场测试及整改服务，欢迎广大企业客户前来测试咨询

RELIABILITY TEST

It refers to the ability or possibility of components, products and systems to perform specified functions without failures in a certain time and under certain conditions. The reliability of products can be evaluated by reliability, failure rate and average failure-free interval.

During the use of products, there are different environments (some are installed outdoors, some carry-on, some are loaded on ships, etc.), which will be subject to different environmental stresses (some are wet and wind, some are subject to vibration and fall, some are attacked by salt spray, etc.). In order to confirm that the product can work normally in these environments, the national standard and the line standard require the product to simulate some test items in the environmental method.

HTT Laboratory has perfect reliability testing equipment, the main equipment are imported international brands: with a number of large constant temperature and humidity box, fast temperature change box, large drying box, shaking table, mechanical impact table, drop test, salt spray test, waterproof, dust-proof tester, and other environmental testing equipment.

Reliability testing project introduction:

CHEMICAL TESTING inspects, tests, tests, inspects and analyses the finished products, semi-finished products, raw materials and intermediate processes of chemical products such as reagent solvents, daily chemical products, chemical fertilizers, chemical pesticides, paint dyes and pigments, coal coking, cement and gas by means of sampling inspection, chemical analysis instruments and physical and chemical instruments.

HTT has a sound physical, chemical and biochemical testing laboratory, which provides scientific, fair, accurate and efficient testing services and technical support for clients with standardized management and professional technology. There are microbiology laboratory, spectroscopic room, chromatograph room, sample pretreatment room, environmental sub chamber and other analytical laboratories. Instruments and equipment include: LC-MS-MS, GC-MC, ICP, Fu Liye transform infrared spectroscopy (FTIR), high performance liquid chromatography (HPLC), gas chromatography (GC), ion chromatography, total organic carbon analyzer (TOC), gel imaging instrument, electrophoresis apparatus, Automatic microbiological identification system and other high-end precision instruments and equipment.

CHEMICAL TESTING