|  | C |
SECTION C — CHEMISTRY AND METALLURGY

|  | C |
Note(s) Definitions for Section C: Alkali metals: Li, Na, K, Rb, Cs, Fr Alkaline earth metals: Ca, Sr, Ba, Ra Lanthanides: elements with atomic numbers 57 to 71 inclusive Rare earths: Sc, Y, Lanthanides Actinides: elements with atomic numbers 89 to 103 inclusive Refractory metals: Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, W Halogens: F, Cl, Br, I, At Noble gases: He, Ne, Ar, Kr, Xe, Rn Platinum group: Os, Ir, Pt, Ru, Rh, Pd Noble metals: Ag, Au, Platinum group Light metals: alkali metals, alkaline earth metals, Be, Al, Mg Heavy metals: metals other than light metals Iron group: Fe, Co, Ni Non-metals: H, B, C, Si, N, P, O, S, Se, Te, noble gases, halogens Metals: elements other than non-metals Transition elements: elements with atomic numbers 21 to 30 inclusive, 39 to 48 inclusive, 57 to 80 inclusive, 89 upwards

CHEMISTRY

|  | C12 |
BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING

|  | C12 |
Note(s) In the field of sub-classes Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...C12M-C12Q, in the absence of an indication to the contrary, an invention is classified in the last appropriate place. [3] Within this class, viruses, undifferentiated plant or animal cells, protozoa and unicellular algae are considered as micro-organisms. Also, sub-cellular parts, unless specifically provided for, are classified with the whole cell. [3] Within this class, non-obligatory classifications may be given as additional information relating to the micro-organisms used by means of the symbols of sub-class Fulltext... Hierarchy... Expanded...C12R. [3]

|  | C12Q |
MEASURING OR TESTING PROCESSES INVOLVING ENZYMES OR MICRO-ORGANISMS (immunoassay Fulltext... Hierarchy... Expanded...G01N 33/54); COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES [3]

|  | C12Q |
Note(s) The term "involving", when used in relation to a substance, includes the testing for the substance as well as employing the substance as a determinant or reactant in a test for a different substance. Test media are classified with the relevant test process. [3] Inventions dealing with the observation of the progress or of the result of processes specified in this sub-class by any of the methods specified in sub-class Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...G01N 3/00-G01N 29/00, are dealt with in sub-class Fulltext... Hierarchy... Expanded...G01N. [3]

|  | C12Q 1/00 |
Measuring or testing processes involving enzymes or micro-organisms (measuring or testing apparatus with condition measuring or sensing means, e.g. colony counters Fulltext... Hierarchy... Expanded...C12M 1/34); Compositions therefor; Processes of preparing such compositions [3]

|  | C12Q 1/02 |
· | involving viable micro-organisms [3]

|  | C12Q 1/04 |
· · | Determining presence or kind of micro-organism; Use of selective media for testing antibiotics or bacteriocides; Compositions containing a chemical indicator therefor [3]

|  | C12Q 1/06 |
· · · | Quantitative determination [3]

|  | C12Q 1/08 |
· · · · | using multifield media [3]

|  | C12Q 1/10 |
· · · | Enterobacteria [3]

|  | C12Q 1/12 |
· · · | Nitrate to nitrite reducing bacteria [3]

|  | C12Q 1/14 |
· · · | Streptococcus; Staphylococcus [3]

|  | C12Q 1/16 |
· · · | using radioactive material [3]

|  | C12Q 1/18 |
· · | Testing for antimicrobial activity of a material [3]

|  | C12Q 1/20 |
· · · | using multifield media [3]

|  | C12Q 1/22 |
· · | Testing for sterility conditions [3]

|  | C12Q 1/24 |
· · | Methods of sampling, or inoculating or spreading a sample; Methods of physically isolating an intact micro-organism [3]

|  | C12Q 1/26 |
· | involving oxidoreductase [3]

|  | C12Q 1/28 |
· · | involving peroxidase [3]

|  | C12Q 1/30 |
· · | involving catalase [3]

|  | C12Q 1/32 |
· · | involving dehydrogenase [3]

|  | C12Q 1/34 |
· | involving hydrolase [3]

|  | C12Q 1/36 |
· · | involving peptidase [3]

|  | C12Q 1/38 |
· · | involving proteinase [3]

|  | C12Q 1/40 |
· · | involving amylase [3]

|  | C12Q 1/42 |
· · | involving phosphatase [3]

|  | C12Q 1/44 |
· · | involving esterase [3]

|  | C12Q 1/46 |
· · · | involving cholinesterase [3]

|  | C12Q 1/48 |
· | involving transferase [3]

|  | C12Q 1/50 |
· · | involving creatine phosphokinase [3]

|  | C12Q 1/52 |
· · | involving transaminase [3]

|  | C12Q 1/54 |
· | involving glucose or galactose [3]

|  | C12Q 1/56 |
· | involving blood clotting factors, e.g. involving thrombin, thromboplastin, fibrinogen [3]

|  | C12Q 1/58 |
· | involving urea or urease [3]

|  | C12Q 1/60 |
· | involving cholesterol [3]

|  | C12Q 1/62 |
· | involving uric acid [3]

|  | C12Q 1/64 |
· | Geomicrobiological testing, e.g. for petroleum [3]

|  | C12Q 1/66 |
· | involving luciferase [3]

|  | C12Q 1/68 |
· | involving nucleic acids [3]

|  | C12Q 1/70 |
· | involving virus or bacteriophage [3]

|  | C12Q 3/00 |
Condition-responsive control processes (apparatus therefor Fulltext... Hierarchy... Expanded...C12M 1/36; controlling or regulating in general Fulltext... Hierarchy... Expanded...G05) [3]