Are polymers exempt from TSCA?
polymers that are prepared from monomers or other reactants that are not on the TSCA (Toxic Substances Control Act) Inventory are ineligible, as are water-absorbing polymers with number-average MW equal to or greater than 10,000, and.
Are polymers subject to TSCA?
The polymer exemption at 40 C.F.R. § 723.250 exempts qualifying polymers from the premanufacture notification requirements of section 5 of the Toxic Substances Control Act (TSCA), (40 C.F.R. § 720).
What is an excluded substance from TSCA regulations?
Certain substances are generally excluded from TSCA, including, among others, food, drugs, cosmetics and pesticides. TSCA addresses the production, importation, use, and disposal of specific chemicals including polychlorinated biphenyls (PCBs), asbestos, radon and lead-based paint.
Do polymers have CAS?
In REGISTRY, each polymer is identified by its own CAS Registry Number in the RN field. Each monomer making up a polymer has its own record and is identified by its own CAS Registry Number in the CRN field.
Do polymers have CAS numbers?
nomenclature used for the name (1972 rules).] The CAS Registry Number is the database key for the REGISTRY record. CAS RNs are assigned to the polymer and to the monomers.
How do I find my CAS number?
The check digit is found by taking the last digit times 1, the preceding digit times 2, the preceding digit times 3 etc., adding all these up and computing the sum modulo 10. For example, the CAS number of water is 7732-18-5: the checksum 5 is calculated as (8×1 + 1×2 + 2×3 + 3×4 + 7×5 + 7×6) = 105; 105 mod 10 = 5.
Are polymers exempt from UK reach?
Polymers: As under EU REACH, Polymers themselves are exempt from registration under UK REACH, but the monomers that make up the polymers are required to be registered and as such it is possible to submit a DUIN for those monomers.
What polymers are ineligible for the TSCA program?
polymers that are prepared from monomers or other reactants that are not on the TSCA (Toxic Substances Control Act) Inventory are ineligible, as are water-absorbing polymers with number-average MW equal to or greater than 10,000, and
What is the TSCA PMN polymer exemption?
Read the TSCA PMN rule amendments of 1995 that updated the Polymer Exemption. Read the Polymer Exemption Guidance Manual. The eligibility criteria are: Polymers with molecular weight (MW) of 1,000 daltons or greater and less than 10,000 daltons are eligible, with restrictions on low MW species and reactive functional groups;
What are the polymers that are not eligible for the exemption?
Polymers which degrade, decompose, or depolymerize are ineligible for the exemption. Also ineligible are several classes of polymers: polymers that are prepared from monomers or other reactants that are not on the TSCA (Toxic Substances Control Act) Inventory are ineligible,
What are the recordkeeping requirements for exempted polymers?
There are recordkeeping requirements to document compliance with the exemption criteria, however, and manufacturers of exempted polymers are required to submit an annual report on the number of exempted polymers for which their manufacture or importation commenced under terms of the exemption during the preceding calendar year.