ROHS2.0, in July 22, 2019, 10 items were implemented, including 3 production, sales and testing reports.

Lead (0.1%);

Mercury (0.1%);

Cadmium (0.01%);

Six valence chromium (0.1%);

Polybrominated biphenyls (PBB) (0.1%);

Polybrominated two phenyl ether (PBDE) (0.1%)

O-ethyl benzene two formic acid two ethyl ester (DEHP) (0,1%)

Phenyl butyl two phthalate (BBP) (0,1%)

Dibutyl phthalate (DBP) (0,1%)

Two isobutyl ester of ortho two carboxylic acid (DIBP) (0,1%)

The EU's RoHS2.0 update has finally been settled. The original six control substances: lead (Pb), mercury (Hg), cadmium (Cd), six valent chromium (Cr VI), polybrominated biphenyl (PBB), polybrominated two phenyl ether (Cr), have become ten control substances, two new (two ethylhexyl) esters of phthalic acid (two), two phenyl toluene butyrate (phthalate), two phthalic acid two, Ding Jizhi, and o-benzoic acid two isobutyrate (phthalate). The European Union communiqu (OJ) issued the RoHS2.0 revised directive (EU) 2015/863. The control limits of the ten control substances were 0.1% and 0.01% respectively.

After the release of this revised directive, the EU member states need to turn this Directive into national laws and regulations before December 31, 2016. Since July 22, 2019, all electronic and electrical products (except medical and monitoring equipment) have to meet the requirement. In July 22, 2021, medical equipment (including external medical equipment) and monitoring equipment (including industrial monitoring equipment) will also be included in the control range. In addition, REACH, annex XVII, fifty-first annex XVII toys will be controlled by DEHP, BBP and DBP in this directive.

In February 13, 2003, the European Parliament and the European Commission issued the "directive on waste electrical and electronic equipment" (WEEE directive) and the directive on the restriction of the use of certain hazardous substances in the electronic and electrical equipment (RoHS directive), the RoHS directive and the WEEE directive, which contain ten categories and 102 categories of products, including the first seven categories of products, which are the main export electrical products in China.They include large household appliances, small household appliances, information and communication equipment, consumer products, lighting equipment, electrical and electronic tools, toys, leisure and sports equipment, medical equipment (except for implanted or infected products), monitoring and control instruments, vending machines. In December 3, 2008, the EU issued a revised proposal for WEEE directive (2002/96/EC) and RoHS directive (2002/95/EC). The purpose of this proposal is to create a better regulatory environment, that is, simple, understandable, effective and enforceable regulations. The main contents of the RoHS directive revision are:

1. changed the legal term and clarified the scope and definition of the directive.

2. introduce product CE logo and EC conformity declaration;

3. stages of medical devices, control and monitoring instruments were included in the RoHS directive. There were no changes in the six harmful substances, but four substances -- o-benzoic acid two isobutyl ester (DIBP), o-benzoic acid two (2- ethyl hexyl ester) (DEHP), o-benzoic acid butylbenzyl ester (BBP) and dibutyl phthalate (DBP) -- were asked to give priority assessment so as to examine whether the future category of restricted substances could be included in the RoHS scope: only for the new products put on the market in July 1, 2006. Incandescent lamps and light sources including household. Special instructions or regulations for special safety and health requirements should not be violated. Vehicle ELV, vehicle instructions, battery instructions, 91/157/EEC, 93/86/EEC&98/101/EC do not include: medical equipment or monitoring equipment (WEEE directive eighth, class 9); maintenance spare parts that were put on the market before July 1, 2006; reused products originally put on the market before July 1, 2006.

Restricted toxic substances:: heavy metals: new European RoHS Certificate (RoHS2.0) - Lead lead; - Mercury mercury; - Cadmium cadmium; - Chromium (VI) six valent chromium; some brominated flame retardants: polybrominated biphenyl Polybrominated biphenyls (PBB s); polybrominated two phenyl ether - PBB (Lead); limiting indicators are: cadmium: 0.01% (H2); lead, mercury, six valent chromium, polybrominated biphenyl, polybromo two phenyl ether: 0.1% (?).

RoHS for all production processes and raw materials may contain the above six hazardous substances electrical and electronic products, including: white household appliances, such as refrigerators, washing machines, microwave ovens, air conditioners, vacuum cleaners, water heaters, etc., black household appliances, such as audio and video products, DVD, CD, TV receivers, IT products, digital products, communication products, electric tools, electric toys, medical electrical equipment.

1. lead (Pb) example of using this substance: solder, glass, PVC stabilizer

2. mercury (Hg) (mercury) example of using this material: thermostat, sensors, switches and relays, bulbs.

3. cadmium (Cd): examples of using this substance: switches, springs, connectors, shells and PCB, contacts, batteries.

4. six valent chromium (Cr 6+) example of using this substance: metal anticorrosive coating

5. examples of polybrominated biphenyls (PBBS) using this substance: flame retardants, PCB, connectors, plastic housing

6. examples of polybrominated two phenyl ether (PBDE) using this substance: flame retardants, PCB, connectors, plastic housing

According to the European Union WEEE&RoHS directive, the domestic third party testing agency with qualification is to split the product according to the material and detect harmful substances separately with different materials. Generally speaking, metal materials need to test four kinds of harmful metal elements, such as (Cd cadmium /Pb lead /Hg mercury /Cr6+ six valent chromium). Besides testing these four harmful heavy metals, plastic materials need to detect brominated flame retardants (polybrominated biphenyl PBB/ polybrominated two Phenyls PBDE), and packaging materials for different materials are also required to carry out the testing of heavy metals in packaging materials (94/62/EEC).

Below is the upper limit concentration of six hazardous substances specified in RoHS: cadmium: less than 100ppm; lead: less than 1000ppm; steel alloy less than 3500ppm; aluminum alloy less than 4000ppm; copper alloy less than 40000ppm; mercury: less than 1000ppm; six valent chromium: less than 1000ppm.

Heavy metals that are harmful to human health are found in electrical and electronic equipment. Cadmium was found in the cables of a group of game machines sold in Holland in 2000. In fact, the large quantities of solder used in the production of electrical and electronic products and the printing ink in package boxes contain harmful heavy metals such as lead.

A. first used XRF for non-destructive screening, which is fast, efficient, non-destructive and low cost. But there are many interference factors and large errors.

B. microwave digestion and acid digestion were used to determine the concentration of Pb, Cd and Hg by AAS or ICP-AES.

C. Soxhlet extraction was used to determine the concentration of polybrominated biphenyl and polybrominated diphenyl ethers by GC-MS.

D. uses dot test or boiling water extraction to determine the concentration of Cr6+ in colorless surface, or is measured by ultraviolet visible spectrophotometer by EPA3060A.

The following tables: detailed ROHS1.0 and ROHS2.0 specific substances and limit values and testing instruments are listed in detail.