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Prebiotics

Prebiotics, Total:293 items.

In the international standard classification, Prebiotics involves: Microbiology, Animal feeding stuffs, Spices and condiments. Food additives, Food products in general, Quality, Terminology (principles and coordination), Farming and forestry, Milk and milk products, Beverages, Company organization and management, Aerospace fluid systems and components, Biology. Botany. Zoology, Fruits. Vegetables, Environmental protection, Pharmaceutics, Home textiles. Linen, General methods of tests and analysis for food products, Sociology. Demography, Services, Hydraulic energy engineering, Tobacco, tobacco products and related equipment, Wastes, Water quality, Transport, Buildings, Shipbuilding and marine structures in general, Fertilizers, Vocabularies, Applications of information technology, Medical sciences and health care facilities in general, Road vehicle systems, Interior finishing, Installations in buildings, Electronic components in general, Fuels, Character sets and information coding, Wood, sawlogs and sawn timber, Aerospace electric equipment and systems, On-board equipment and instruments, Piezoelectric and dielectric devices, Telecommunication systems, Equipment for the chemical industry, Machine tool systems, Graphical symbols, Plastics.


RU-GOST R, Prebiotics

Group Standards of the People's Republic of China, Prebiotics

  • T/SZBX 085-2022 Probiotics Powder
  • T/CNFIA 131-2021 probiotic food
  • T/CEMA 001-2022 Colostrum probiotic foods
  • T/QGCML 1436-2023 Oral probiotics for pets
  • T/CIFST 009-2022 General standard of probiotics for food use
  • T/QGCML 1064-2023 Probiotic ice cream for kids
  • T/CAB 0281-2023 Ready-to-eat probiotic foods
  • T/CASME 435-2023 Probiotic fermented botanical beverage
  • T/CASME 673-2023 Complete pet food-Probiotic food
  • T/CIET 247-2023 Evaluation method for the efficacy of probiotics in regulating reproductive tract microecology
  • T/JGE 0050-2023 Jiangxi Green Ecology-Probiotic fermented fruit and vegetable drinks
  • T/CSES 01-2019 Guideline for benefit evaluation of reclaimed water use
  • T/SDAS 21-2018 Technical specification for traditional Chinese medicine fermented by probiotics
  • T/HOMETEX 14-2020 Probiotics antibacterialand anti-mite home textiles
  • T/CNHFA 006-2022 Grading specification for probiotic viable rate in probiotic foods
  • T/CAS 694-2023 The guideline for assessment on ecological benefit of the industrial products
  • T/JMZJXH 008-2022 Fruit worm (probiotic) active protein feed
  • T/CACM 1374.135-2021 Technical Regulations for Standardized Production of Motherwort
  • T/CSF 002-2022 Guidelines for ecological benefit assessment of vegetation restoration in open-pit mine
  • T/CASME 415-2023 Method for detection of spore probiotics in puffed pet food
  • T/GRM 017-2021 Method of benefit evaluation for microbial reclamation in arid and semi-arid coal mining area
  • T/CSUS 46-2022 Guidelines for Comprehensive Benefit Evaluation of Urban Water Ecological Environment Restoration Projects
  • T/SZAS 22-2020 The guide to genotyping of the probiotics at strain level by whole genome sequencing
  • T/CAS 618-2022 General technical requirements for probiotics (Bacillus) preparations for external use in pets
  • T/DE 6-2022 Lean Production in Digital Factory Part 1: Guidelines for Systematic Implementation
  • T/SDFA 003.10-2021 Standards for Whole-plant Corn Silage Production and Pig Feeding Part 10: Economic Benefit Calculation Method
  • T/CAS 617-2022 General technical requirements for probiotics (Bacillus) air purifiers and environmental cleaners
  • T/CBDA 31-2019 Technical specification for production of unitized curtain wall
  • T/CFIAS 8001-2022 Specification of practice for the diversified diets with low protein and low soybean meal for pigs
  • T/CI 018-2021 Bio-organic trace elements iron, copper, zinc, manganese, selenium production technology guide
  • T/CMIF 163-2022 Intelligent production line of ternary cathode materials for lithium battery
  • T/YNBX 030-2020 Green Food Yuanmou Cucumber Production Technical Regulations
  • T/YNBX 028-2020 Green Food Yuanmou Tomato Production Technical Regulations
  • T/YNBX 029-2020 Green Food Yuanmou Onion Production Technical Regulations
  • T/YNBX 027-2020 Green food Yuanmou kidney bean production technical regulations
  • T/QBJYT 1-2021 Green food ternary nectarine production technology regulations
  • T/YNBX 026-2020 Organic Food Yuanmou Vegetable Production Technical Regulations
  • T/CATAGS 65-2023 Detection methods for trace elements in aviation biofuels

GOSTR, Prebiotics

  • GOST R 58589-2019 Lean production. Special requirements for the application of lean production in the shipbuilding industry
  • GOST R 58524-2019 Lean production. Special requirements for the use of lean production in organizations and supply chains of the automotive industry
  • GOST R 58581-2019 Lean production. Special requirements for the application of lean production in aerospace industry, operating and service organizations
  • GOST R 59018-2020 Lean production. Guidance for the use of GOST R 56404 requirements in supply chain
  • GOST R 59017-2020 Lean production. Guidance for use of GOST R 56404 requirements in integrated structures

Guangdong Provincial Standard of the People's Republic of China, Prebiotics

  • DB4409/T 17-2021 Nootropic Production Technical Regulations
  • DB44/T 1918-2016 Specifications for evaluation of service functions of ecological public welfare forests
  • DB44/T 1398-2014 Technical regulations for the survey of ecological public welfare forest plots
  • DB44/T 1144-2013 Technical regulations for classification of ecological public welfare forest management types
  • DB44/T 1913-2016 Technical regulations for species selection of non-wood products of ecological public welfare forests

Professional Standard - Agriculture, Prebiotics

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, Prebiotics

  • GB/T 18337.1-2001 Non-commercial forest construction--Guide principle
  • GB/T 18337.3-2001 Non-commercial forest construction--Technical regulation
  • GB/T 18337.2-2001 Non-commercial forest construction-Regulation of plan and design
  • GB/T 18337.4-2008 Inspection and acceptance procedures for ecological public welfare forest construction
  • GB/T 42247-2022 Water reuse guidelines—Benefits evaluation of reclaimed water use
  • GB/T 27614-2011 Guidelines for import and release of biological control agents and other beneficial organisms
  • GB/T 20533-2006 Metadata for ecological data

Zhejiang Provincial Standard of the People's Republic of China, Prebiotics

  • DB3302/T 153-2018 Ecological public welfare forest tending regulations
  • DB3311/T 49-2015 Enterprises introduce lean production evaluation norms
  • DB3301/T 0271-2018 Regulations on the Construction and Management of Public Welfare Ecological Cemeteries
  • DB3307/T 103-2020 Construction and management norms of village-level public welfare lawn ecological cemetery
  • DB33/T 310010-2021 Technical Regulations for Monitoring and Evaluation of Coastal Shelterbelt Ecological Benefits
  • DB3308/T 073-2020 Township (street) land-saving ecological burial public welfare cemetery construction specifications

Association of German Mechanical Engineers, Prebiotics

Society of Automotive Engineers (SAE), Prebiotics

Henan Provincial Standard of the People's Republic of China, Prebiotics

  • DB41/T 1231-2016 Technical Specifications for Ecological Public Welfare Forest Monitoring

Hebei Provincial Standard of the People's Republic of China, Prebiotics

Guangxi Provincial Standard of the People's Republic of China, Prebiotics

  • DB45/T 2394-2021 Ecological Monitoring Index System of Public Welfare Forests
  • DB45/T 1773-2018 Technical Regulations for the Management of Pine Masson Ecological Public Welfare Forest

Shandong Provincial Standard of the People's Republic of China, Prebiotics

Liaoning Provincial Standard of the People's Republic of China, Prebiotics

  • DB21/T 1364-2005 Technical regulations for the construction of ecological public welfare forests
  • DB21/T 2276-2014 Fast-growing poplar binary standing wood volume table

Beijing Provincial Standard of the People's Republic of China, Prebiotics

  • DB11/T 1099-2014 Technical regulations for ecological benefit evaluation of forestry ecological engineering
  • DB11/T 1414-2017 Technical Requirements for Generation of Cleaner Production Scheme and Calculation of Benefits
  • DB11/T 655-2009 Rules for Classification of Ecological Public Welfare Forest Management Types
  • DB11/T 1359-2016 Technical guidelines for plain ecological public welfare forest conservation
  • DB11/T 793-2011 Technical regulations for the transformation of low-efficiency ecological public welfare forests
  • DB11/T 290-2005 Technical regulations for tending of ecological public welfare forests in mountainous areas
  • DB11/T 3033-2022 Mental Health Data Meta Specification
  • DB11/T 1284-2015 Wine production management data element specification

Shanxi Provincial Standard of the People's Republic of China, Prebiotics

  • DB14/T 2615-2022 Management Standards for Permanent Ecological Public Welfare Forests
  • DB14/T 1417-2017 Technical Specifications for the Management of Artificial Ecological Public Welfare Forests
  • DB14/T 824-2013 Technical Regulations on Density Regulation of Chinese Pine and Arborvitae Ecological Forests

国家林业局, Prebiotics

  • LY/T 2832-2017 Multifunctional Management Guide for Ecological Public Welfare Forests
  • LY/T 2093-2013 Evaluation procedures for ecological benefits of shelterbelt systems
  • LY/T 2897-2017 Methods for obtaining data for ecological benefit assessment of natural forest protection projects

Fujian Provincial Standard of the People's Republic of China, Prebiotics

  • DB35/T 1478-2014 Technical Regulations for Restoration of Ecological Public Welfare Forests

Sichuan Provincial Standard of the People's Republic of China, Prebiotics

  • DB51/T 1963-2015 Technical specifications for remote sensing monitoring of ecological benefits of grassland ecological projects
  • DB51/T 1964-2015 Technical specifications for ground investigation of grassland ecological engineering ecological benefit monitoring
  • DB51/T 1847-2014 Technical regulations for ground fixed-point monitoring of grassland ecological protection subsidy and reward mechanism for ecological benefits

Professional Standard - Water Conservancy, Prebiotics

  • SL 593-2013 Guidelines of calculating ecological benefit on the project of small hydropower substituting for fuel

Guizhou Provincial Standard of the People's Republic of China, Prebiotics

  • DB5206/T 41-2018 Investigation and Analysis Method of Cost-benefit of Flue-cured Tobacco Production
  • DB5206/T 79-2018 Standards for evaluation of economic benefits of sweet potato production technology
  • DB52/T 1278-2018 Regulations on the Management of Forest Ecological Benefit Compensation Funds in Targeted Poverty Alleviation and Poverty Areas
  • DB52/T 706-2011 Chinese fir binary standing volume growth rate table
  • DB52/T 774-2012 Cypress Binary Standing Volume Growth Rate Table
  • DB52/T 827-2013 Table of volume growth rate of hard and broad binary standing timber
  • DB52/T 823-2013 Table of volume growth rate of soft broad binary standing timber
  • DB52/T 764-2012 Table of volume growth rate of two-dimensional standing trees of Pine yunnanensis
  • DB52/T 769-2012 Huashan pine binary standing wood volume growth rate table
  • DB52/T 829-2013 Table of above-ground binary biomass of single bamboo standing tree
  • DB52/T 832-2013 The above-ground binary biomass table of a single plant of hard broadwood
  • DB52/T 831-2013 The above-ground binary biomass table of a single standing tree of soft broadleaf
  • DB52/T 775-2012 The aboveground binary biomass table of a single cypress tree
  • DB52/T 770-2012 Table of aboveground unitary biomass of single standing tree of Pinus huashanensis
  • DB52/T 707-2011 Volume growth rate table of artificial masson pine binary standing wood
  • DB52/T 765-2012 Aboveground binary biomass table of a single standing tree of Pine yunnanensis

Hunan Provincial Standard of the People's Republic of China, Prebiotics

  • DB43/T 1647-2019 Technical Specifications for Urban Forest Ecological Benefit Monitoring
  • DB43/T 1480-2018 General technical requirements for whole element bio-organic fertilizer

Professional Standard - Forestry, Prebiotics

  • LY/T 2497-2015 Technical regulation for ecological benefits monitoring of protective forest system
  • LY/T 2573-2016 Specification of monitoring and evaluation of ecological benefits of returning farmland to forest project
  • LY/T 3318-2022 Technical specifications for monitoring and evaluating benefits of grassland ecological construction projects

British Standards Institution (BSI), Prebiotics

  • BS EN 15789:2009 Animal feeding stuffs - Isolation and enumeration of yeast probiotic strains
  • BS 8683:2021 Process for designing and implementing Biodiversity Net Gain. Specification
  • DD CEN/TS 15790:2008 Animal feeding stuffs. PCR typing of probiotic strains of Saccharomyces cerevisiae (yeast)
  • 20/30381787 DC BS 8683. Process for designing and implementing Biodiversity Net Gain. Specification
  • BS ISO 19698:2020 Sludge recovery, recycling, treatment and disposal. Beneficial use of biosolids. Land application
  • BS ISO 19344:2015 Milk and milk products. Starter cultures, probiotics and fermented products. Quantification of lactic acid bacteria by flow cytometry
  • BS DD CEN/TS 15297:2006 Solid biofuels - Determination of minor elements
  • BS DD CEN/TS 15290:2006 Solid biofuels - Determination of major elements
  • BS EN 2591:6306:2001 Elements of electrical and optical connection - Test methods - Optical elements - Mould growth
  • BS EN 2591-6306:2001 Elements of electrical and optical connection. Test methods - Optical elements. Mould growth
  • 18/30364900 DC BS ISO 19698. Sludge recovery, recycling, treatment and disposal. Beneficial use of biosolids. Land applications
  • BS EN 60444-9:2007 Measurement of quartz crystal unit parameters - Measurement of spurious resonances of piezoelectric crystal units
  • DD CEN/TS 15290:2006 Solid Biofuels — Determination of major elements
  • DD CEN/TS 15297:2006 Solid Biofuels — Determination of minor elements
  • BS EN ISO 16968:2015 Solid biofuels. Determination of minor elements
  • PD CEN/TS 17701-1:2022 Plant biostimulants. Determination of specific elements. Digestion by aqua regia for subsequent determination of elements
  • 20/30372728 DC BS EN 15789. Animal feeding stuffs: Methods of sampling and analysis. Isolation and enumeration of yeast probiotic strains (Saccharomyces cerevisiae)

Jiangsu Provincial Standard of the People's Republic of China, Prebiotics

  • DB32/T 4571-2023 Technical Regulations for Measurement and Monitoring of Carbon Sinks in Ecological Public Welfare Forests
  • DB32/T 310010-2021 Technical Regulations for Monitoring and Evaluation of Coastal Shelterbelt Ecological Benefits
  • DB32/T 2713-2014 Technical indicators for the classification of ecological public welfare forests and commercial forests in Jiangsu Province
  • DB32/T 3334-2017 General technical requirements for whole element bio-organic fertilizer

农业农村部, Prebiotics

  • NY/T 3461-2019 Technical regulations for evaluation of economic and ecological benefits of grassland construction

Standard Association of Australia (SAA), Prebiotics

  • HB 265-2005 Meta Management - A stakeholder/quality management approach to whole-of-enterprise management

Association Francaise de Normalisation, Prebiotics

  • NF V18-239:2009 Animal feeding stuffs - Isolation and enumeration of yeast probiotic strains.
  • XP V18-240*XP CEN/TS 15790:2010 Animal feeding stuffs - PCR typing of probiotic strains of Saccharomyces cerevisiae (yeast)
  • NF X30-305*NF EN ISO 14045:2012 Environmental management - Eco-efficiency assessment of product systems - Principles, requirements and guidelines
  • NF U44-095:2002 Amendements organiques - Composts contenant des matières d'intérêt agronomique, issues du traitement des eaux
  • NF U44-095/A1:2008 Amendements organiques - Composts contenant des matières d'intérêt agronomique, issues du traitement des eaux
  • AC X50-320:2008 Production au plus juste - Accompagnement des petites et moyennes entreprises industrielles - Démarche collective dans la région Centre
  • XP CEN/TS 15790:2010 Aliments des animaux - Typage par réaction de polymérisation en chaîne (PCR) des souches probiotiques de Saccharomyces cerevisiae (levure)
  • NF X33-049*NF ISO 19698:2021 Sludge recovery, recycling, treatment and disposal - Beneficial use of biosolids - Land application
  • NF C90-511:1991 Electronic components General Coding date of manufacture
  • NF X34-123*NF EN ISO 16968:2015 Solid biofuels - Determination of minor elements
  • NF EN ISO 16968:2015 Biocombustibles solides - Détermination des éléments mineurs
  • NF ISO 19344:2016 Lait et produits laitiers - Ferments lactiques, probiotiques et produits fermentés - Quantification de bactéries lactiques par cytométrie en flux

International Organization for Standardization (ISO), Prebiotics

  • ISO/CD 9111 Water reuse in urban areas — Guideline for benefit evaluation of reclaimed water use
  • ISO/CD 6675 Fertilizers, soil conditioners and beneficial substances — Microbiology — Detection of Escherichia coli
  • ISO 14045:2012 Environmental management - Eco-efficiency assessment of product systems - Principles, requirements and guidelines
  • ISO 19698:2020 Sludge recovery, recycling, treatment and disposal — Beneficial use of biosolids — Land application
  • ISO 19344:2015 | IDF 232:2015 Milk and milk products — Starter cultures, probiotics and fermented products — Quantification of lactic acid bacteria by flow cytometry
  • ISO 16968:2015 Solid biofuels - Determination of minor elements
  • ISO/CD 6674 Fertilizers, soil conditioners and beneficial substances — Microbiology- Detection of Staphylococcus aureus coagulase-positive
  • ISO 19344:2015 Milk and milk products - Starter cultures, probiotics and fermented products - Quantification of lactic acid bacteria by flow cytometry
  • ISO 14899:2001 Plastics - Polyols for use in the production of polyurethane - Determination of basicity

Danish Standards Foundation, Prebiotics

  • DS/EN 15789:2009 Animal feeding stuffs - Isolation and enumeration of yeast probiotic strains
  • DS/CEN/TS 15790:2009 Animal feeding stuffs - PCR typing of probiotic strains of Saccharomyces cerevisiae (yeast)

Lithuanian Standards Office , Prebiotics

  • LST EN 15789-2010 Animal feeding stuffs - Isolation and enumeration of yeast probiotic strains

AENOR, Prebiotics

  • UNE-EN 15789:2010 Animal feeding stuffs - Isolation and enumeration of yeast probiotic strains

Aeronautical Radio Inc., Prebiotics

  • ARINC 674-2014 STANDARD FOR COST EFFECTIVE ACQUISITION FOR AIRCRAFT LIFECYCLE SUPPORT

Shanghai Provincial Standard of the People's Republic of China, Prebiotics

  • DB31/T 1038-2017 Quality classification of seedlings of main afforestation tree species in ecological public welfare forests
  • DB31/T 310010-2021 Technical Regulations for Monitoring and Evaluation of Coastal Shelterbelt Ecological Benefits

Inner Mongolia Provincial Standard of the People's Republic of China, Prebiotics

  • DB15/T 1316-2018 Evaluation on quality grade of ecological public welfare forest in arid and semi-arid area
  • DB15/T 1937-2020 Technical regulations for monitoring ecological benefits of windbreak and sand fixation in shrub forests
  • DB15/T 2554-2022 Technical rules for isolation and identification of probiotic lactic acid bacteria in fermented tomato residue

Qinghai Provincial Standard of the People's Republic of China, Prebiotics

  • DB63/T 2017-2022 Technical specifications for forest health assessment of artificial ecological public welfare forests
  • DB63/T 2035-2022 Benefit monitoring and evaluation specifications for grassland ecological restoration projects

European Committee for Standardization (CEN), Prebiotics

  • CEN/TS 15790:2008 Animal feeding stuffs - PCR typing of probiotic strains of Saccharomyces cerevisiae (yeast)

Professional Standard-Ships, Prebiotics

PL-PKN, Prebiotics

CEN - European Committee for Standardization, Prebiotics

Tianjin Provincial Standard of the People's Republic of China, Prebiotics

Anhui Provincial Standard of the People's Republic of China, Prebiotics

  • DB34/T 606-2006 Breeding technical regulations for binary sows produced by three-way hybrid pigs
  • DB34/T 473-2004 Technical regulations for hybrid breeding of three-way hybrid pig production
  • DB34/T 474-2004 Three-way hybrid pig production piglet breeding technical regulations

ASHRAE - American Society of Heating@ Refrigerating and Air-Conditioning Engineers@ Inc., Prebiotics

  • ASHRAE OR-05-11-1-2005 Cost-Effective Design of Duel Heat and Energy Recovery Exchangers for 100% Ventalation Air in HVAC Cabinet Units
  • ASHRAE LO-09-035-2009 Building Heat Load Contributions from Medium and Low Voltage Switchgear—Part II: Component and Overall Switchgear Heat Gains

HU-MSZT, Prebiotics

SE-SIS, Prebiotics

American National Standards Institute (ANSI), Prebiotics

Professional Standard - Hygiene , Prebiotics

  • WS 363.13-2011 Health data element dictionary. Part 13: Healthcare expenditure
  • WS 363.14-2011 Health data element dictionary. Part 14: Healthcare organization
  • WS 363.15-2011 Health data element dictionary. Part 15: Health personnel
  • WS 363.17-2011 Health data element dictionary. Part 17: Health management
  • WS/T 305-2009 Metadata specification of health information dataset
  • WS 364.13-2011 Classification and coding for value domain of health data element. Part 13: Healthcare expenditure
  • WS 364.15-2011 Classification and coding for value domain of health data element. Part 15: Health personnel
  • WS 364.17-2011 Classification and coding for value domain of health data element. Part 17: Health management
  • WS/T 363.13-2023 Health Information Data Metacatalog Part 13: Health Costs
  • WS/T 363.14-2023 Health Information Data Metacatalog Part 14: Health Institutions
  • WS/T 363.15-2023 Health Information Data Metacatalog Part 15: Health Personnel
  • WS/T 363.17-2023 Health Information Data Metacatalog Part 17: Health Management
  • WS/T 305-2023 Health Information Dataset Metadata Standard
  • WS/T 303-2023 Health information data element standardization rules
  • WS 363.1-2011 Health data element dictionary. Part 1: General specification
  • WS 363.2-2011 Health data element dictionary. Part 2: Identification

Professional Standard - Electron, Prebiotics

  • SJ/T 10788-1996 Detailed specifications for electronic components - 3DG79 forward AGC low-noise transistor for high-frequency (Applicable for certification)

Heilongjiang Provincial Standard of the People's Republic of China, Prebiotics

  • DB23/T 3318-2022 Technical regulations for the production of liquid strains of Yuan mushroom
  • DB23/T 730-2016 Green food element mushroom production technical operation rules

中华人民共和国国家卫生和计划生育委员会, Prebiotics

  • WS/T 303-2009 Rules for data element standardization of health information
  • WS 364.14-2011 Classification and coding for value domain of health data element. Part 14: Healthcare organization

Professional Standard - Aerospace, Prebiotics

  • QJ 1194.2-1987 Classification and codes of the sources of data elements for postgraduate candidates in the education system

Professional Standard - Post and Telecommunication, Prebiotics

  • YD/T 1758-2008 Security Protection Requirements for the Support Unit of Core Production Network
  • YD/T 1759-2008 Security Protection Testing Requirements for the Support Unit of Core Production Network

Korean Agency for Technology and Standards (KATS), Prebiotics

Jilin Provincial Standard of the People's Republic of China, Prebiotics

  • DB22/T 1151-2019 Pleurotus (Yuan Mushroom) Safety Production Technical Regulations

KR-KS, Prebiotics

Professional Standard - Chemical Industry, Prebiotics

  • HG/T 6074-2022 Water treatment agent monobasic chlorine dioxide generator

Jiangxi Provincial Standard of the People's Republic of China, Prebiotics

  • DB36/T 636-2011 Production technical regulations for three-way hybrid commercial pigs

German Institute for Standardization, Prebiotics

  • DIN EN ISO 16968:2015-09 Solid biofuels - Determination of minor elements (ISO 16968:2015); German version EN ISO 16968:2015

ES-UNE, Prebiotics

US-CFR-file, Prebiotics

  • CFR 20-725.212-2013 Employees' benefits. Part725:Claims for benefits under part c of title iv of the federal mine safety and health act, as amended. Section725.212:Conditions of entitlement; surviving spouse or surviving divorced spouse.

IECQ - IEC: Quality Assessment System for Electronic Components, Prebiotics

International Electrotechnical Commission (IEC), Prebiotics

  • IEC 60444-9:2007 Measurement of quartz crystal unit parameters - Part 9: Measurement of spurious resonances of piezoelectric crystal units




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