• 제목/요약/키워드: Korean Standard(KS)

검색결과 616건 처리시간 0.025초

국산목질판상재료(國産木質板狀材料)의 물리적(物理的) 및 기술적성질(機械的性質)에 관(關)한 비교연구(比較硏究) (Comparative Studies on Physical and Mechanical Properties of Domestic Wood-Based Panels)

  • 이필우
    • Journal of the Korean Wood Science and Technology
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    • 제18권2호
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    • pp.67-78
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    • 1990
  • This study was performed to determine the characteristics of physical and mechanical properties of domestic wood based materials; plywood, particleboard, medium density fiberboard. Main items of tested properties were panel size, moisture content, water absorption, linear expansion and thickness swelling, glue bond shear strength, bending properties(stress at proportional limit, modulus of rupture. modulus of elasticity), tensile strength, screw holding strength, and internal bond as neccessary. the results were discussed mainly with Korean Standards. The obtained conclusions are as follows; 1. Length and width of 3mm thin plywood(3-ply) and 12mm thick plywood(7-ply) were satished with KS-standard, but thicknesses of these panels were not- passed tolerance limit except one of eight makers. 2. Length and width of particleboard and medium density fiberboard were greater than the tolerance limit value of KS standard, but the thicknesses of these panels were passed this value. 3. Moisture contents of 12mm thick and 3mm thin plywood were satisfied with KS-standard except one mill made 3mm thin plywood. 4. Moisture absortion of plywood was not passed tolerance limit of KS-standard but particleboard was satisfied with this standard value. 5. Dry and wet shear strengths in glue bond of 3mm thin plywood were not reached to KS-standard, but those of 12mm thick plywood were sufficiently satisfied with KS standrad. 6. Modulus of ruptures, parallel to grain and perpendicular to grain of plywood, and particleboard and medium density fiberboard were satisfied with KS-standard. 7. Tensile strengths, parallel to grain and perpendicular to grain of plywood were satisfied with allowance stress of US product standard PS 1-74. 8. Screw holding strength of particleboard was not reached to KS standard, but internal bond was satisfied with KS standard.

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환경오염공정시험기준과 KS ISO규격의 일원화에 관한 연구 - 먹는 물 및 실내공기질 - (Study on the unification between KS I ISO standard and official test method enacted by Korean Ministry of Environment - drinking water and indoor air quality -)

  • 이정일;이주희;이정희;이준희;이원석;김지인;김보경;최성헌
    • 분석과학
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    • 제25권2호
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    • pp.102-113
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    • 2012
  • 현행 환경오염공정시험기준 중 먹는 물 수질공정시험기준과 실내공기질 공정시험기준에 대해 국제규격에 부합화된 KS ISO규격과의 일원화에 관해 연구하였다. KS규격 23,000여종을 대상으로 먹는 물 및 실내공기질관련 KS 규격을 조사하였다. 환경분야관련 KS규격은 KS I로 분류되며, 총 653종으로 조사되었으며, 이중 국제규격에 부합화된 KS I 규격은 583종으로 조사되었다. 먹는 물 수질공정 시험기준은 총 100개 기준을 대상으로 ISO/TC 147 "Water Quality" 관련 KS 규격 총 232종을 비교 검토하였으며, 실내공기질 공정시험기준은 "ISO/TC 146 "Air Quality" 관련 KS 규격 총 95종 규격을 비교 검토하였다. 문헌검토와 비교시험을 통해 먹는 물 및 실내공기질 공정시험기준과 일원화 가능한 국제규격에 부합화된 KS규격 연구결과 먹는물수질공정시험 100개 기준 중 사전일원화 완료 23개 기준, 일원화 가능 29개 기준, 일원화 불가 12개 기준, 대응 규격 없는 기준이 36개로 평가되었으며, 실내공기질 공정시험기준 17개 기준 중 사전일원화 완료 1개 기준, 일원화 가능 3개 기준, 일원화 불가 3개 기준, 대응규격 없는 기준이 10개 기준으로 평가되었다.

Feasibility of Non-Korean Standard Glulam Using a Lower Grade Lamina of Japanese cedar for Structural Use

  • Oh, Jung-Kwon;Lee, Jun-Jae
    • Journal of the Korean Wood Science and Technology
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    • 제38권2호
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    • pp.85-93
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    • 2010
  • Japanese cedar has low density and poor mechanical performance. Manufacturing glue-laminated timber (glulam) is the best way to compensate for its poor mechanical performance. The Korean Standard (KS) confines outermost lamina of glulam to higher grade than E8, but the yield of higher than grade E8 from logs is only 6.5%. Therefore, the aim of this study is to investigate the possibility of non-Korean-Standard glulam in structural applications. Allowable stresses determined by both hand-calculation and Monte-Carlo simulation show a higher allowable stress than that of the KS-standard glulam of 6S-22B. In the Korean Standard (KS), knot characteristics are not taken into account. Japanese cedar has relatively small knots. We believe that the small knots in Japanese cedar contribute to a higher allowable stress than the KS-standard glulam would predict. The species classification of KS is required to be further subdivided into sub-species groups based on knot characteristics.

보호복 관련 국내·외 표준에 대한 탐색적 조사 - ISO, ASTM, CEN, KS를 중심으로 - (An Exploratory Study on Domestic and International Protective Clothing Standard - Focused on ISO, ASTM, CEN, KS -)

  • 한설아;남윤자
    • 한국의류산업학회지
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    • 제10권1호
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    • pp.92-100
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    • 2008
  • When designing protective clothing, there are something to be considered such as physiological feature of human body, acting range not to restrict physical activity, and effectiveness of material. Because the primary objective of protective clothing is to protect human body from danger and it is designed through complex designing process not likely general clothing design. However, current evaluation techniques-such as the ISO, the ASTM and the CEN, and KS-provide only the standard to evaluate the primary feature of material (testing, performance requirements, material specification, selection and application, test and care, and so on). There are no standard to evaluate influence for the human body while protective clothing put on. Especially, in Korea, there is KS to evaluate protective clothing, but it is partially translated version from ISO because of lack of core technology about this field. However, developed countries recognize it is new competitive means in the time of Global Standards and they are competing to make their own standard to global standard for the protective clothing. Therefore, it can be great opportunity for Korean clothing and textile industry to revitalize if focusing on research and development for protective clothing design based on physical activity of human body, fit evaluation technique and sizing which is currently no global standard for it and developing our standard to global standard.

"공공기록물 관리에 관한 법률" 개선 방향에 관한 연구: KS X ISO 15489 표준에 입각하여 (A Study of Improvement for Public Records Management Act: Based on KS X ISO 15489)

  • 정기애;김유승
    • 정보관리학회지
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    • 제26권1호
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    • pp.231-257
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    • 2009
  • 우리나라는 1999년 "공공기관의 기록물관리에 관한 법률"의 제정과 2006년 "공공기록물 관리에 관한 법률"의 전면 개정을 통해 종합적이고 체계적인 기록물관리 발전에 박차를 가하는 한편, 전자기록물로의 패러다임 전환을 위한 토대를 다져왔다. 이러한 맥락에서 국가 차원의 기록관리에 대한 구체적 지침으로서 법을 보완하는 기능과 역할을 하는 기록관리 표준 KS X ISO 15489의 2007년 제정은 큰 의의를 지닌다. 이에 본 연구는, 국가적 기록관리 정책과 원칙의 토대가 되는 법률과 표준은 상호배타적이거나 상충되어서는 안 된다는 원칙을 전제로, KS X 15489 제정의 의의를 살피고, 법률과 표준의 상호성을 논한다. 이를 위해, KS X ISO 15489의 다섯 가지 영역별 주요 내용을 토대로 법률에서의 상호 관련 내용을 비교 분석하고, 상호 정렬성을 검토한다. 이러한 분석을 토대로, 현행 기록물관리 관련 법령의 개선점을 논의하고, 기록관리의 미래지향적 발전에 대한 논점을 제시한다.

제품 포트폴리오 전략 수립을 위한 표준연결망 활용방안 연구 (A Study on the Application of Korean Standards(KS) Networks to the Development of a Product Portfolio Strategy)

  • 윤태영;조남욱
    • 품질경영학회지
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    • 제41권4호
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    • pp.637-648
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    • 2013
  • Purpose: The objective of this study is to provide a methodology that can facilitate efficient development of a product portfolio by utilizing Korean Standards(KS) networks. Methods: A case study on a steel manufacturing company is provided. Social network analysis h as been conducted on KS network and KS certification information of the company. Core test standards of a company have been identified. The core standards, then, used to construct a product-standard network of a corresponding industry. Results: As a result of analyzing product-standard networks, a product portfolio of a company has been developed. It has been shown that the candidate product portfolio is a cost-effective alternative in terms of standard maintenance cost. Conclusion: By using social network analysis, standards information can be used to support new product development process.

안전·위생보호구관련 KS의 오류 및 부정확한 표현사례 연구 (Study of Misused Expressions in KS Related to Personal Protective Equipment)

  • 이병헌
    • 한국산업보건학회지
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    • 제6권2호
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    • pp.222-248
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    • 1996
  • This study was designed to survey misused expression in 37 KS (Korean Industrial standards) related to personal protective equipment. The results were as follows: 1. One hundred and twenty five misused expressions were found - 44 expressions were used illogically (35.2 %). 80 expressions were wrongly described (64.0 %) The types of illogically misused are: 10 illogical cases, 4 cases of a wrongly designated provision when cited, 12 cases of the lack of provisons for KS, 7 cases of a inappropriate uses of units, 8 cases of an overlapped sizes between standards. - The types of expressions wrongly described are: 30 cases of confusion in using an terms, 4 case of making an error when proofreading, and 29 cases of choosing words not appropriate to describe technical standard, 18 cases of unclear provisons due to missing phrases and terms, and 11 cases of provisons described differently from original intended purposes. 2. There is one case, where the same standard is categorized as two different names. There are three major causes of the misused expressions as seen from the following summary: - Imitated the developed countries' standards without filtering them by considering domestic law and ocher KS standards. - Tended to create each definition for each standard instead use of the basic standard. - Insufficiency of synthetic examination to the correlation between standards.

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기업경영성과에 KS 표시인증이 끼치는 영향에 관한 실증연구 (An Empirical Study on the Effect of KS Certificate to the Enterprise Performance)

  • 구일섭;김태성;김춘순
    • 대한안전경영과학회지
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    • 제7권1호
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    • pp.117-126
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    • 2005
  • Korean Standard Certificate, suitable for the korean industrial standards is one which was designed not only to spread and utilize the industrial standard established for the industrial standardization, but to protect the consumer. In this study, the practical effects of the Korean Standard Certificate will be examined in various fields, based on the small medium enterprises which achieved the KS Certificate. In order to look into how the system has effects on the performance of the management in a company, the method of the actual approach will be used. In the end, the purpose of this study is to find the plan in which KS Certificate can be helpful to the development of the company.

KS F 2278을 적용한 대면적 시료 열관류율 시험 실측에 관한 연구 (An Experimental Study on Thermal Resistance of Large-scale Specimen Using KS F 2278)

  • 문재식;이원균;김영봉;조병영;노상태
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2018년도 춘계 학술논문 발표대회
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    • pp.306-307
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    • 2018
  • In Korea, The thermal resistance test of window sets is performed according to KS F 2278 standard, and is performed only on a specimen size of 2000 × 2000 (mm). In this study, a standard panel measuring 4000 × 3000 (mm) size was used to measure the heat flux in each part of the specimen, and to calculate the resistance to heat transfer And to seize whether the KS F 2278 standard is applicable to large Specimen.

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방사선투과시험(放射線透過試驗)에 있어서 KS와 ASME Code의 비교(比較)에 관(關)한 연구(硏究) (Study on Comparison of Korean Industrial Standard and ASME BPV Code for Radiographic Examination)

  • 김진구;박병철
    • 비파괴검사학회지
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    • 제4권2호
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    • pp.20-29
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    • 1985
  • There are two basic concepts in industrial radiographic examination; one is a radio-graphic sensitivity, and the other is a acceptance criteria. The comparison of these main points are studied for KS Standard and ASME Boiler and Pressure Vessel Code. From the results of the experiment, higher radiographic sensitivity is required in KS Standard when the thickness of material to be examined is less than 20mm in single wall technique. The acceptance criteria for linear type indications are described on same concept in two standards, whereas the acceptance criteria for rounded indications of KS Standard which mainly depends upon the object thickness are more severe than those of ASME BPV Code.

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