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In September 2019, the Thailand Department of Industrial Work (DIW) under the Ministry of Industry (MOI) published the approved List of Hazardous Substances (No.5) [1]. The consultation on this amendment started in March. (Chemlinked News [2])
Compared to the Draft [3] released in March, there are changes in the modification of Annex 4.1. Specifically, the classification for substance No. 25 is changed as well, and detailed information on the hydrates of citric acid and configuration of lactic acids is shown in the list.
Compared to the previous official version, the followings are the modification in List No.5:
For Annex 4.1, the hazard classification of chlorpyrifos (No.24) is changed from Type 3 to Type 4, and chlorpyrifos-methyl (No.25) is changed from Type 2 to Type 4. Five substances are added in Annex 4.1 (No. 226~No. 230).
For Annex 4.2, the hazard classification of amphoteric surfactants (No.15) is changed from Type 3 to Type 1 and one substance is added (No. 29).
For Annex 5.1, the exemption conditions of methoxyacetic acid and 2- methoxyacetic acid (No. 60) and hexachlorobenzene (No. 477) is supplemented, and seven substances are added (No. 519~No. 525). For methoxyacetic acid, the exemption condition is impurity ≤ 0.3% (w/w), and for hexachlorobenzene, the exemption condition is impurity ≤ 0.005% (w/w).
The information on the hazardous substances that newly added to the List is shown in Table 1.
Table 1. The Hazardous Substances Newly Added to the List
Annex | No. | Chemical Name | CAS No. | Type |
4.1 | 226 | Citric Acid (monohydrate) | 5949-29-1 | 2 |
4.1 | 227 | Citric Acid (anhydrous) | 77-92-9 | 2 |
4.1 | 228 | D(-) Lactic Acid | 10326-41-7 | 2 |
4.1 | 229 | DL-Lactic Acid or Racemic Lactic Acid | 598-82-3 or 50-21-5 | 2 |
4.1 | 230 | L(+) Lactic Acid | 79-33-4 | 2 |
4.2 | 29 | Amine Oxides | - | 1 |
5.1 | 519 | Decabromodiphenyl Ether | 1163-19-5 | 3 |
5.1 | 520 | Chloroalkanes, C6-C18 | 68920-70-7 | 3 |
5.1 | 521 | Chloroalkanes, C10-C12 | 108171-26-2 | 3 |
5.1 | 522 | Chloroalkanes, C10-C13 | 85535-84-8 | 3 |
5.1 | 523 | Chloroalkanes, C10-C14 | 85681-73-8 | 3 |
5.1 | 524 | Chloroalkanes, C12-C13 | 71011-12-6 | 3 |
5.1 | 525 | Chloroalkanes, C12-C14 | 85536-22-7 | 3 |
According to the new Hazardous Substance Act (HSA), as far as the import procedure is concerned, Type 1 hazardous substances should notify before import. Type 2 and Type 3 hazardous substances are subject to registration before import. Type 4 substances are prohibited from importation. More information about the NEW HSA will be updated on Chemlinked soon.
