--- $schema: "http://json-schema.org/draft-07/schema#" $id: "https://oimlsmart.org/schemas/R76.yaml" title: "OIML R76 (Non-automatic weighing instruments) Certificate Schema" type: object required: [certificate, certified_type, characteristics, recommendation] properties: certificate: { $ref: "_core.yaml#/definitions/Certificate" } issuing_authority: { $ref: "_core.yaml#/definitions/IssuingAuthority" } applicants: { $ref: "_core.yaml#/definitions/PartyList" } manufacturers: { $ref: "_core.yaml#/definitions/PartyList" } certified_type: { $ref: "#/definitions/CertifiedType" } characteristics: { $ref: "#/definitions/Characteristics" } recommendation: type: object required: [id, edition, scheme] properties: id: { type: string, enum: [R76, R76-1, "R 76"] } edition: type: integer oneOf: - const: 2006 description: Edition 2006 - const: 1992 description: Legacy edition 1992 amendment: { type: [integer, string, "null"] } scheme: { type: string, enum: [A, B] } accuracy_classes: type: array items: { $ref: "#/definitions/AccuracyClassValue" } test_reports: { $ref: "_core.yaml#/definitions/TestReportList" } revision_history: { $ref: "_core.yaml#/definitions/RevisionHistory" } model_family: { $ref: "_core.yaml#/definitions/ModelFamily" } components: type: array items: { $ref: "_core.yaml#/definitions/Component" } footnotes: { $ref: "_core.yaml#/definitions/FootnoteList" } d011_tests_applicable: description: Tests mandated by R76-2 type evaluation (D 11:2013 subset). type: array items: { $ref: "#/definitions/D011TestReference" } default: - { test_id: d011_t06_static_temperature } - { test_id: d011_t07_static_temperature } - { test_id: d011_t08_damp_heat_steady_state } - { test_id: d011_t09_damp_heat_cyclic } - { test_id: d011_t11_atmospheric_pressure } - { test_id: d011_t18_dc_mains_voltage_variation } - { test_id: d011_t20_ac_mains_voltage_variation } - { test_id: d011_t22_dc_mains_dips_interruptions } - { test_id: d011_t23_ac_mains_dips_interruptions } - { test_id: d011_t26_bursts_ac_dc_mains } - { test_id: d011_t27_surges_ac_dc_mains } - { test_id: d011_t28_bursts_signal_data_control } - { test_id: d011_t29_surges_signal_data_control } - { test_id: d011_t33_rf_em_fields_general } - { test_id: d011_t35_electrostatic_discharges } definitions: AccuracyClass: description: | OIML R76-1 §3.2 accuracy class for a non-automatic weighing instrument. May carry a single class or, for multi-accuracy-class instruments, a list of classes (one per weighing range). The `value` subfield accepts either form; the enum tokens are the Roman numerals I, II, III, IIII. allOf: - $ref: "_core.yaml#/definitions/StructuredValue" - properties: value: description: | Accuracy class token. Single class = a string from the enum. Multi-accuracy instrument = an array of enum tokens, one per weighing range (R76-1 §3.2). Tokens are Roman numerals; note class IIII (four Is), distinct from III. oneOf: - type: string oneOf: - const: I description: Special accuracy — highest precision instruments - const: II description: High accuracy — precision balances, lab/retail - const: III description: Medium accuracy — most commercial/industrial scales - const: IIII description: Ordinary accuracy — coarse industrial scales - const: "N/A" description: Not applicable - type: array items: type: string enum: [I, II, III, IIII] AccuracyClassValue: description: | Bare accuracy class token used in `recommendation.accuracy_classes` array (the list of classes the certificate covers). Distinct from the StructuredValue-wrapped accuracy_class in characteristics.type_level. type: string oneOf: - const: I description: Special accuracy - const: II description: High accuracy - const: III description: Medium accuracy - const: IIII description: Ordinary accuracy InstrumentType: description: | R76-1 §3.4 instrument classification. Canonical tokens; surface synonyms (e.g. "electronic", "electromechanical") should be normalized to these. type: string oneOf: - const: single_interval description: Single-interval instrument — one verification scale interval - const: multi_interval description: Multi-interval instrument — multiple scale intervals within one range - const: single_range description: Single-range instrument - const: multi_range description: Multi-range instrument — two or more weighing ranges - const: multiple_range description: Multi-range instrument (synonym of multi_range) - const: "N/A" description: Not applicable # Surface forms observed in cert data (pre-normalization). These describe # the instrument type in human-readable form and SHOULD be normalized to # the canonical single_interval/multi_interval/etc tokens above. - const: "Non-automatic weighing instrument" description: Surface form — normalize to canonical token - const: "Non-automatic weighing instruments" description: Surface form — normalize to canonical token - const: "Non-automatic electronic weighing instrument" description: Surface form — normalize to canonical token - const: "Non-automatic weighing indicator" description: Surface form — normalize to canonical token - const: "Non-automatic electronic weighing indicator" description: Surface form — normalize to canonical token - const: "Analog data processing device" description: Surface form — component-level description - const: "Digital data processing device" description: Surface form — component-level description - const: "Analog load cells" description: Surface form — component-level description - const: "analog_passive" description: Surface form — load cell characterization (R60-style) CertifiedType: type: object required: [category, type_designations] properties: category: description: | R76-1 §3.2. Canonical value is "Non-automatic weighing instrument"; historical certs may use variant phrasing pending migration. type: string type_designations: type: array minItems: 1 items: { type: string } module_designation: oneOf: - $ref: "#/definitions/InstrumentType" - type: "null" description: { type: string } Characteristics: type: object properties: type_level: { $ref: "#/definitions/TypeLevel" } model_level: type: array items: { $ref: "#/definitions/ModelLevelEntry" } config_level: type: array items: { $ref: "#/definitions/ConfigLevelEntry" } TypeLevel: type: object properties: accuracy_class: { $ref: "#/definitions/AccuracyClass" } instrument_type: { $ref: "#/definitions/InstrumentType" } temperature_range: { $ref: "_modules/d011_environmental.yaml#/definitions/TemperatureRange" } humidity_class: { $ref: "_modules/d011_environmental.yaml#/definitions/ClimaticClass" } electromagnetic_environment_class: { $ref: "_modules/d011_environmental.yaml#/definitions/EMClass" } mechanical_environment_class: { $ref: "_modules/d011_environmental.yaml#/definitions/MechanicalClass" } maximum_capacity: { $ref: "_core.yaml#/definitions/StructuredValue" } minimum_capacity: { $ref: "_core.yaml#/definitions/StructuredValue" } verification_scale_interval: { $ref: "_core.yaml#/definitions/StructuredValue" } actual_scale_interval: { $ref: "_core.yaml#/definitions/StructuredValue" } number_of_scale_intervals: { $ref: "_core.yaml#/definitions/StructuredValue" } measuring_range: { $ref: "_core.yaml#/definitions/StructuredValue" } weighing_range: { $ref: "_core.yaml#/definitions/StructuredValue" } tare_balancing_range: { $ref: "_core.yaml#/definitions/StructuredValue" } preset_tare_value: { $ref: "_core.yaml#/definitions/StructuredValue" } maximum_tare: { $ref: "_core.yaml#/definitions/StructuredValue" } maximum_tare_effect: { $ref: "_core.yaml#/definitions/StructuredValue" } maximum_number_of_verification_scale_intervals: { $ref: "_core.yaml#/definitions/StructuredValue" } fraction_of_maximum_permissible_error: { $ref: "_core.yaml#/definitions/StructuredValue" } fraction_max_permissible_error_pi: { $ref: "_core.yaml#/definitions/StructuredValue" } power_supply_voltage: { $ref: "_core.yaml#/definitions/StructuredValue" } power_supply_type: { $ref: "_core.yaml#/definitions/StructuredValue" } power_supply_frequency: { $ref: "_core.yaml#/definitions/StructuredValue" } load_cell_excitation_voltage: { $ref: "_core.yaml#/definitions/StructuredValue" } minimum_load_cell_impedance: { $ref: "_core.yaml#/definitions/StructuredValue" } maximum_load_cell_impedance: { $ref: "_core.yaml#/definitions/StructuredValue" } minimum_input_voltage_per_verification_scale_interval: { $ref: "_core.yaml#/definitions/StructuredValue" } maximum_cable_length: { $ref: "_core.yaml#/definitions/StructuredValue" } software_identification: { $ref: "_core.yaml#/definitions/SoftwareIdentification" } ModelLevelEntry: type: object required: [attribute, values] properties: attribute: { type: string } unit: { $ref: "_units.yaml#/definitions/Unit" } values: type: array items: type: object required: [model, value] properties: model: { type: string } value: { $ref: "_core.yaml#/definitions/ValueOrScalar" } footnote_markers: type: array items: { type: string } ConfigLevelEntry: type: object required: [attribute, axis, values] properties: attribute: { type: string } axis: { oneOf: [ { type: string }, { type: "null" } ] } unit: { $ref: "_units.yaml#/definitions/Unit" } values: type: array items: type: object anyOf: - required: [condition, value] properties: condition: { type: string } value: { $ref: "_core.yaml#/definitions/ValueOrScalar" } - required: [model, value] properties: model: { type: string } value: { $ref: "_core.yaml#/definitions/ValueOrScalar" } D011TestReference: description: Reference to an OIML D 11:2013 performance test. type: object required: [test_id] properties: test_id: { type: string, pattern: '^d011_t\d{2}_' } test_level_index: { type: integer, minimum: 1, maximum: 5 } notes: { type: string } allOf: - description: | Conditional applicability of D 11 damp heat tests (R76-1 §4.3, D 11 §9.2): t08 (steady state) applies iff humidity_class = H2 or H3 (non-condensing, non-temperature-controlled or open-air); t09 (cyclic) applies iff humidity_class = H3 (open-air, condensing). For R76 the humidity_class uses D 11 H1/H2/H3 directly (unlike R60 which uses the separate CH/NH/SH load-cell marking). if: properties: characteristics: properties: type_level: properties: humidity_class: properties: value: { const: H2 } then: properties: d011_tests_applicable: contains: { properties: { test_id: { const: d011_t08_damp_heat_steady_state } } } - if: properties: characteristics: properties: type_level: properties: humidity_class: properties: value: { const: H3 } then: properties: d011_tests_applicable: contains: { properties: { test_id: { const: d011_t09_damp_heat_cyclic } } }