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The PTCRB was established in 1997 as the certification forum by select North American cellular operators. Now a pseudo-acronym, it no longer stands for its original meaning of the PCS Type Certification Review Board (then named after the GSM1900 MHz band in North America).
n.o.s. = not otherwise specified meaning a collective entry to which substances, mixtures, solutions or articles may be assigned if a) they are not mentioned by name in 3.2 Dangerous Goods List AND b) they exhibit chemical, physical and/or dangerous properties corresponding to the Class, classification code, packing group and the name and description of the n.o.s.entry [3]
Perchlorate reductase is an enzyme that catalyzes the chemical reactions: . ClO 4 − + 2 AH 2 ClO 2 − + 2 A + 2 H 2 O. and ClO 3 − + AH 2 ClO 2 − + A + H 2 O. Thus, the substrates of this enzyme are a reduced electron acceptor (denoted AH 2) and either chlorate or perchlorate, sometimes collectively denoted as (per)chlorate.
The first four characters XXXX are the Federal Supply Classification Group (FSCG) / NATO Supply Classification Group (NSCG) code. This relates the item to the Federal Supply Group (FSG) / NATO Supply Group (NSG) (characters 1 & 2) and the Federal Supply Class (FSC) / NATO Supply Class (NSC) (characters 3 & 4) of similar items that it belongs to.
UN Number Class Proper Shipping Name UN 2901: 2.3: Bromine chloride: UN 2902: 6.1: Pesticides, liquid, toxic, n.o.s. : UN 2903: 6.1: Pesticides, liquid, toxic ...
The NATO Stock Number or National Stock Number (NSN) is a 13-digit alphanumeric code consisting of a Group of Supply, a Class of Supply and the unique NIIN to designate unique items of supply grouped by their relative catalog category. The first four digits are the NATO Supply Classification (NSC) or Federal Supply Class (FSC) code.
The CPT code revisions in 2013 were part of a periodic five-year review of codes. Some psychotherapy codes changed numbers, for example 90806 changed to 90834 for individual psychotherapy of a similar duration. Add-on codes were created for the complexity of communication about procedures.
The tariff schedule has 99 chapters under 22 sections, and various appendices for chemicals, pharmaceuticals, and intermediate chemicals for dye.Raw materials or basic substances generally appear in the early chapters and in earlier headings within a chapter, whereas highly processed goods and manufactured articles appear in later chapters and headings.