safety base, undetermined
type: Concept
definition: Safety base film whose type has not been identified.
in scheme: Motion picture: base of film
notation: a

safety base, acetate undetermined
type: Concept
definition: Acetate safety base film whose exact type cannot be determined, i.e., where it is unknown if the type is diacetate or triacetate.
in scheme: Motion picture: base of film
notation: c

safety base, diacetate
type: Concept
definition: Cellulose diacetate film base.
in scheme: Motion picture: base of film
notation: d
scope note: Introduced before World War I for home movies, diacetate base was more expensive and unpredictable than nitrate base and so failed to gain acceptance in professional 35 mm. film production.

nitrate base
type: Concept
definition: Cellulose nitrate film base.
in scheme: Motion picture: base of film
notation: i
scope note: Cellulose nitrate support or base was used in the manufacture of 35 mm. film (and some 17.5 mm. film) until 1951. Nitrate base film is no longer manufactured.

mixed base (nitrate and safety)
type: Concept
definition: Combination of nitrate base and safety base film.
in scheme: Motion picture: base of film
notation: m
scope note: The use of a mixed base was common in the early 1950s when nitrate base stock shots were spliced with safety base film for low-budget motion pictures. In such releases, up to 50% of the film consisted of stock shots on nitrate base film.

not applicable
type: Concept
definition: Item does not have a film base.
in scheme: Motion picture: base of film
notation: n
scope note: E.g., paper film.

safety base, polyester
type: Concept
definition: Film base made of a synthetic resin.
in scheme: Motion picture: base of film
notation: p
scope note: E.g., estar.

safety base, mixed
type: Concept
definition: Mixed safety base films spliced together; but contains no nitrate film.
in scheme: Motion picture: base of film
notation: r

safety base, triacetate
type: Concept
definition: Cellulose triacetate film base.
in scheme: Motion picture: base of film
notation: t
scope note: Cellulose triacetate is a high acetal compound with very low flammability and slow burning characteristics. From 1951, triacetate has been used for professional as well as for amateur produced moving image film.

unknown
type: Concept
definition: Base of the film is not known.
in scheme: Motion picture: base of film
notation: u

other
type: Concept
definition: Base of film other than safety base, undetermined, safety base, acetate undetermined, safety base, diacetate, nitrate base, mixed base (nitrate and safety), not applicable, safety base, polyester, safety base, mixed, safety base, or triacetate.
in scheme: Motion picture: base of film
notation: z

Motion picture: base of film
type: ConceptScheme
contributor: Metadata Management Associates
language: en
alternative: MARC21 007/12 values for motion pictures expressed using RDF
contributor: http://viaf.org/viaf/151962300
creator: http://viaf.org/viaf/139541794
description: Base of the film.
format: Turtle
has format: motion picture base of film.html
has format: motion picture base of film.jsonld
has format: motion picture base of film.nt
has format: motion picture base of film.rdf
issued: 2024
license: http://creativecommons.org/publicdomain/zero/1.0
provenance: marc00Xvalues
publisher: http://viaf.org/viaf/139541794
source: marc21rdf.info
source: bd007.html
type: Dataset
disambiguating description: SKOS Concept Scheme for MARC 00X Values
version: 1-0-0