• 한국산업보건학회지
• /
• 제26권4호
• /
• pp.404-410
• /
• 2016

Objectives: This study aimed to examine and analyze the material safety data sheet(MSDS) information for photoresist chemicals used in certain processes in semiconductor plants. Methods: After collecting MSDS for 178 chemical products currently used in certain processes in semiconductor plants, we analyzed Sections 2, 3, 11, and 15 of each MSDS with reference to the guidelines for evaluating the reliability of MSDS provided by the Korea Occupational Safety and Health Agency. In addition, we reviewed the recorded uses and the ratios of trade secrets. Results and Conclusions: We studied a total of 178 chemical products. An MSDS was available for 176(98.9%) of them and all adhered to the Globally Harmonized System(GHS) regulations. There were 37 cases of errors in Hazard Identification, pertaining to 20.8% of all products surveyed. There were 64 cases of errors in the current legal circumstances, pertaining to 36.0% of all products. There were a total of 407 trade secrets across 52.2% of products. We believe that a government-led education and certification system needs to be introduced to improve the transfer of MSDS information. The government, chemical manufacturers and suppliers all need to make an effort to produce reliable MSDS.

• 디지털융복합연구
• /
• 제16권4호
• /
• pp.185-194
• /
• 2018

본 연구는 치과위생사들의 치과재료에 대한 물질안전보건자료(Material Safety Data Sheet, MSDS)의 인식도와 유해화학물질 취급 시 안전 실태에 대해 파악하고자 실시하였다. 연구는 광주광역시에 근무 중인 치과위생사 250명을 대상으로 2015년 1월부터 2월까지 조사하였고, 235명의 자료를 최종분석 대상으로 하였다. 그 결과 치과재료에 대한 MSDS 인지 정도는 연령이 높을수록 인지도가 높게 나왔으며(p<0.05), 치과병원에 근무하는 치과위생사(p<0.001)에서 유의하게 높았다. 치과재료의 유해화학물질위해성에 대한 인식도에 영향을 미치는 요인은 MSDS인식도(p<0.001)이었고, 유해화학물질 노출 시 응급처치에 대한 인식도에 영향을 미치는 요인은 유해위험성 교육을 받은 경험(p<0.001)으로 나타났다. 따라서 치과위생사들의 치과재료에 대한 MSDS 인식도와 유해화학물질 취급 시 안전 실태에 대해 파악함으로써 유해화학물질 취급 시 안전에 대한 올바른 인식 확립과 이로 인한 사고를 예방하기 위한 교육 프로그램 개발에 기초자료를 제공하고자 한다.

• 대한치과기공학회지
• /
• 제38권3호
• /
• pp.209-216
• /
• 2016

Purpose: The purpose of this study is to discover the recognition of dental technicians on MSDS and to research the furnishing rate of Material Safety Data Sheet (MSDS) in dental laboratories. Method: 104 dental technicians who were self-written questionnaire. The results were analyzed by SPSS 12.0. The answers to the questionnaire underwent frequency analysis, chi-square test were performed. Results: The result of cross analysis on the occurrence of occupational diseases according to whether MSDS is furnished showed that the group with MSDS furnished had 37.8% of damages due to their occupation, but the group with MSDS unfurnished had 65.7% of damages due to their occupation, which displayed a significant difference(p<0.05). The result of cross analysis on whether the education about chemicals according to whether MSDS is furnished showed there were relatively more responses of no education on the types and characteristics of chemicals, the effect on human body and its risk, emergency measure when exposed to risk, the treating and storing methods and the disposal methods. In addition, there were significant differences on whether all the above education was done between the group with MSDS furnished and the group without MSDS(p<0.000). Conclusion: In order to secure safe working environment of dental technicians and to reduce occurrence of damage caused by chemicals, the related education is necessary. The recognition of dental technicians on MSDS and furnishing rate is increasing but still insufficient, so the related organizations need to establish education and PR measures for prevention of damage.

• 한국산업보건학회지
• /
• 제23권3호
• /
• pp.287-298
• /
• 2013

Objectives: Workers who use chemicals are exposed to safety accidents and occupational diseases. Employers are required to provide workers with Material Safety Data Sheets (MSDSs) in order to prevent accidents and diseases related to chemicals. Thus, it is very important to offer reliable MSDSs. In this paper, we assessed the reliability of MSDSs for chemicals including formaldehyde. Methods: To evaluate MSDS reliability, we collected 14 MSDSs and bulk samples from the chemical industry. MSDS reliability was evaluated by the completeness of details. In order to evaluate the adequacy of the formaldehyde contents in a mixture, bulk samples were collected and analyzed by HPLC. The result of Globally Harmonized System (GHS) classification was confirmed by identifying physical chemical properties, toxicology information and ecological information. Results: The result of the evaluation of 14 MSDSs showed 76.29% average reliability on each item, especially 53.9% average appropriate rate on hazard risk classification. No chemicals failed to match between the content (%) in MSDSs and the result of analysis. Conclusions: To elevate MSDSs reliability, the certified education of MSDS drafters and reorganization of the MSDS circulation system is required.

• 한국산업보건학회지
• /
• 제9권1호
• /
• pp.156-172
• /
• 1999

Potential chemical hazards encountered in painting operation of four shipyards and a ship-repair shop were investigated through the material safety data sheets (MSDS). Material safety data sheets (MSDS) for 307 paints, 50 thinners and 34 binders were collected and reviewed. It was shown that various organic solvents such as aromatic hydrocarbons, aliphatic hydrocarbons, ketones, alcohols, glycols, glycol ether acetates and esters were contained in painting materials. Of these solvents, xylene was found in the largest number of painting materials. sixty percent of the thinners contained xylene in the contents of 20-100%. Other most frequently found solvents were 1-methoxypropanol, 1-methoxypropyl acetate, n-butanol, methyl isobutyl ketone, toluene, isopropanol, and n-butyl acetate, etc. Glycol ethers such as 2-methoxyethanol (2-ME), 2-methoxyethyl acetate (2-MEA), 2-ethoxyethanol (2-EE), 2-ethoxyethyl acetate (2-EEA) and 2-butoxyethanol (2-BA) were regarded as having the potential to cause adverse reproductive effects, embryotoxic effect and hematotoxic effects, and were found in some epoxy panting materials. Coal tar pitch was included in some paints(13%) where polynuclear aromatic hydrocarbons (PAHs) could be contaminated. Inorganic pigments such as lead chromate and zinc potassium chromate were found in some paints (8%). The epoxy resin based paints, which may contain isocyanates such as toluene diisocyanates and hexamethylene diisocyanates causing potential sensitization and asthma to upper respiratory organ, were mostly used in the shipyards. The constituents in the MSDS were significantly different from the results analyzed using gas chromatography/mass detector: minor constituents or impurities were omitted in many MSDS. In conclusion, xylene was the most frequent organic solvent in painting materials, and glycol ethers, including 2-ME, 2-MEA, 2-EE, 2-EEA and 2-BA, were found some products. Also, painting workers may be exposed to PAHs, lead, chromate, isocyanates, organic tin and other various chemicals. The compositions of chemicals in painting materials were variable significantly, and the hazards were changed. These facts should be considered in environmental monitoring and control of the hazards.

• Safety and Health at Work
• /
• 제10권1호
• /
• pp.114-121
• /
• 2019

Background: The photolithography process in the semiconductor industry uses various chemicals with little information on their constitution. This study aimed to identify the chemical constituents of photoresist (PR) products and their by-products and to compare these constituents with material safety data sheets (MSDSs) and analytical results. Methods: A total of 51 PRs with 48 MSDSs were collected. Analysis consisted of two parts: First, the constituents of the chemical products were identified and analyzed using MSDS data; second, for verification of the by-products of PR, volatile organic compounds were analyzed. The chemical constituents were categorized according to hazards. Results: Forty-five of 48 products contained trade secrets in amounts ranging from 1 to 65%. A total of 238 ingredients with multiple counting (35 ingredients without multiple counting) were identified in the MSDS data, and 48.7% of ingredients were labeled as trade secrets under the Korea Occupational Safety and Health Act. The concordance rate between the MSDS data and the analytical result was 41.7%. The by-product analysis identified 129 chemicals classified according to Chemical Abstracts Service No., with 17 chemicals that are carcinogenic, mutagenic, and reprotoxic substances. Formaldehyde was found to be released from 12 of 21 products that use novolak resin. Conclusion: We confirmed that several PRs contain carcinogens, and some were not specified in the toxicological information in the MSDS. Hazardous chemicals, including benzene and formaldehyde, are released from PRs products as by-products. Therefore, it is necessary to establish a systematic management system for chemical compounds and the working environment.

• 한국산업보건학회지
• /
• 제32권4호
• /
• pp.340-349
• /
• 2022

Objectives: The importance of MSDS is emphasized for communicating hazardous information due to the increase in the types and usage of chemical substances. The purpose of this study is to assess the reliability of MSDS by collecting and examining paint thinners commercially available in South Korea. Methods: Twenty-five paint thinners were purchased at paint stores and the provision of MSDS was checked. Quantitative and qualitative analysis was performed on the chemical constituents of the thinners using GC-MSD and GC-FID. Reliability was evaluated by the MSDS collection rate for the paint thinners and calculating the rate of matching between laboratory analysis results and the contents and composition of chemical constituents given in the MSDS. Results: Unlike a study conducted in 2006, MSDS were provided for all 25 thinners. As a result of qualitative analysis using GC-MSD, 104 chemical substances were detected. The substances with the highest detection rate were identified in the order of toluene, butyl acetate, acetone, xylene, and ethyl benzene. A component matching rate of 41% was found by comparing the differences between the number of substances detected in laboratory testing and the number of substances listed in the MSDS. Benzene, a carcinogen not listed in the MSDS, was detected in two thinners produced by a small company. The detected benzene contents were 0.039 and 0.040%. When benzene is used, it should be strictly handled according to the Industrial Safety and Health Act. However, since it is not listed on the MSDS, it is judged that benzene was not being managed as a carcinogen in the workplaces where it is used. Conclusions: Since the reliability of MSDS, which play an important role in hazard communication, was evaluated to be low, it is necessary to systematically and continuously secure this reliability. In particular, carcinogens should be managed more strictly.

• 한국산업보건학회지
• /
• 제18권1호
• /
• pp.62-71
• /
• 2008

The use of chemical products to enhance and improve life is a widespread practice worldwide. But alongside the benefits of these products, there is also the potential for adverse effects to people or the environment. As a result, a number of countries or organizations have developed laws or regulations over the years that require information to be prepared and transmitted to those using chemicals, through labels or Material Safety Data Sheets (MSDS). While these existing laws or regulations are similar in many respects, their differences are significant enough to result in different labels or MSDS for the same product in different countries. Given the reality of the extensive global trade in chemicals, and the need to develop national programs to ensure their safe use, transport, and disposal, it was recognized that a Globally harmonization system of classification and labeling of chemicals(GHS) would provide the foundation for such programs. This study offered complementary details of GHS classification criteria adopted in Korea by analyzing the differences in chemical classification system between UN and Korea Ministry of Labor. Also it is proposed that mutual agreement of information DB used is required by comparing classification results of chemicals in Korea, Japan, and EU. We offered the lists of information sources useful for chemical classification.

• 한국산업보건학회지
• /
• 제28권4호
• /
• pp.352-364
• /
• 2018

Objective: The Korean Industrial Hygiene Association(KIHA) held a forum on "Improvement of Material Safety Data Sheets (MSDS) regulations for enhancing the effectiveness and efficiency in the field" at its 2018 Winter Conference(February 2, 2018). This article summarized the major consensus opinions developed at the forum. Methods: Since the initial implementation of the MSDS system, the contents of the system have changed and related studies have been reviewed. Before the forum, online questionnaires were developed and opinions on the effectiveness of MSDS program were collected from various strata of the occupational health field. We also summarized the key opinions of companies, trade unions, experts, and government officials as discussed at the forums. Results: A total of 265 opinions were gathered through online questionnaire surveys from safety and health managers, trade unions, government officials, and health professionals. The results of online surveys and discussions showed some differences of opinion, but it was a common perception that the current MSDS system is not working effectively in the workplace. It was considered necessary to strengthen MSDS education and to make it easier for workers to understand and deliver the necessary information. In addition, it was confirmed that the supply of and education on MSDS to small- and medium-sized enterprise workers is not being well executed. In particular, MSDS training for subcontract workers should be carried out under the responsibility of the contracting employer. Conclusions: In order for the MSDS system to serve more effectively in the field in the future, it needs to be improved in terms of the effective education and training considering the type of industry and employment.

• 한국산업보건학회지
• /
• 제33권3호
• /
• pp.265-272
• /
• 2023

Objectives: Since the material safety data sheets(MSDS) submission and non-disclosure review system was introduced in January 2021, the implementation status of MSDS for chemical manufacturing and importing workplaces being supervised for the first time. Methods: A supervisory team consisting of two labor inspectors and one from the Korea Occupational Safety and Health Agency directly visited the selected workplaces to check compliance with the MSDS system as a whole. Results: As a result of supervising 214 chemical substance manufacturing/importing workplaces, a total of 241 violations of the law were found in 121 workplaces, or 57% of them. In response, the Ministry of Employment and Labor took legal action on 8 cases in 6 locations, imposed a fines totaling of 249.69 million won on 120 chemical handling workplaces, and took action to correct the violations immediately. Conclusions: Major violations were in the order of non-request for warning signs, non-submission of MSDS, non-execution of MSDS training, and non-posting of MSDS. This shows the reality that employers who handle chemical substances are sufficiently communicating chemical information to workers. In the future, the government will actively implement preparation and submission support and system guidance for the implementation of the MSDS system, while making efforts to ensure that the MSDS system works well in the field through thorough on-site supervision in the future.