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WS/T 241-2004: Biological limit values for occupational exposure to styrene
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| Std ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status |
| WS/T 241-2004 | English | 229 |
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Biological limit values for occupational exposure to styrene
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Basic data
| Standard ID | WS/T 241-2004 (WS/T241-2004) |
| Description (Translated English) | Biological limit values for occupational exposure to styrene |
| Sector / Industry | Health Industry Standard (Recommended) |
| Classification of Chinese Standard | C52 |
| Classification of International Standard | 13.100 |
| Word Count Estimation | 7,767 |
| Date of Issue | 2004-04-07 |
| Date of Implementation | 2004-10-01 |
| Regulation (derived from) | Health-Communication [2010] No. 12 |
| Summary | This standard specifies: fiber reinforced plastics performance test laboratory environmental conditions, sample, test equipment, test results and test reports. This standard applies to: fiber reinforced plastics mechanical and physical properties side fixed. |
WS/T 241-2004: Biological limit values for occupational exposure to styrene
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Biological limit values for occupational exposure to styrene
ICS 13.100
C52
People's Republic of China Health Industry Standard
Biological limit of occupational exposure to styrene
Released on.2004-04-07
Implementation of.2004-10-01
Published by the Ministry of Health
Foreword
This standard is based on on-site labor health survey data and reference to foreign occupational exposure biological limits, for occupational exposure to styrene
Biological monitoring health standards.
Appendix A of this standard is an informative annex.
This standard was proposed by the Department of Health Legal System and Supervision of the Ministry of Health.
This standard was drafted. Peking University School of Public Health, Fuzhou Jinan District Health and Epidemic Prevention Station, Qilu Petrochemical Company Occupational Disease Prevention
Governance.
The main drafters of this standard. Shen Huizhen, Shen Bo, Nie Xingtian.
This standard is entrusted by the Ministry of Health to explain the occupational health and poisoning department of the Chinese Center for Disease Control and Prevention.
Biological limit of occupational exposure to styrene
1 Scope
This standard specifies the biological monitoring indicators, biological limits and monitoring methods for occupational exposure to styrene.
This standard applies to biological monitoring of occupational exposure to styrene.
2 Normative references
The terms in the following documents become the terms of this standard by reference to this standard. All dated references, followed by all
Modifications (not including errata content) or revisions do not apply to this standard, however, parties to agreements based on this standard are encouraged to study
Is it possible to use the latest version of these files? For undated references, the latest edition applies to this standard.
WS/T 54-1996 Determination of phenylglyoxylic acid and phenylglycolic acid in urine by high performance liquid chromatography
WS/T 97-1996 Spectrophotometry of urinary creatinine
3 Biological monitoring indicators and exposure limits
The biological monitoring indicators and exposure limits are shown in Table 1.
Table 1
Biomonitoring indicator occupational exposure biological limit sampling time
Urine glycolate plus phenylglyoxylic acid
295mmol/mol creatinine (400mg/g creatinine)
120mmol/mol creatinine (160mg/g creatinine)
Work shift
Before the next work shift
4 Monitoring and inspection methods
4.1 Test methods for phenylglycolic acid and phenylglyoxylic acid in urine were carried out in accordance with WS/T 54-1996.
4.2 The test method for urine creatinine is performed in accordance with WS/T 97-1996.
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