1、Designation: D 4297 05Standard Practice forSampling and Handling Bisphenol A(4,4* -Isopropylidinediphenol)1This standard is issued under the fixed designation D 4297; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last
2、 revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This practice covers procedures for safely sampling andhandling 4,48-isopropylidinediphenol, commercially known asbisphe
3、nol A (BPA), in various solid forms, and as a liquid atelevated temperatures in a manner which represents andpreserves product quality.1.2 Any person sampling or handling this product shouldhave consulted a Material Safety Data Sheet (MSDS) forspecific first aid instructions and information on the p
4、roperequipment to have available for use in the event of personalcontact or exposure.1.3 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.
5、1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use. For specific h
6、azardstatements, see Section 8.2. Referenced Documents2.1 OSHA Regulations:29 CFR Labor, paragraphs 1910.1000 and 1910.120022.2 U.S. DOT Regulations:49 CFR Transportation, Subchapter C, Parts 171-18023. Significance and Use3.1 This practice is issued to provide information useful inestablishing samp
7、ling and handling procedures. It is expectedthat this information will only be utilized in conjunction withan existing health and safety program and consultation with anappropriate MSDS. The information provided herein cannot beused as a substitute for expert safety and medical advice asprovided in
8、an appropriate MSDS, but rather as a supplementto such advice.4. Description of Product (See Table 1)4.1 Bisphenol A (BPA) is not classified as a hazardouschemical by the Department of Transportation, and is, thereforenot subject to DOT regulations governing the transportation ofhazardous articles.
9、Bisphenol A is normally transported inseveral types of containers including cloth and paper bags, bulktrucks, and covered hopper cars. (See Table 1.)4.2 While bisphenol A (BPA) is dangerous when handledimproperly, particularly at elevated temperatures, its unloadingneed not be hazardous provided the
10、 hazards are recognized andhandling instructions are rigidly observed as detailed here andin an appropriate MSDS.5. Hazards5.1 HealthConsult current OSHA regulations and suppli-ers Material Safety Data Sheets for all materials used in thispractice.5.1.1 Aside from the risk of thermal burns in handli
11、ng BPAwhen molten, and a possibility of dermatitis from impurities,particularly in crude grades, industrial use does not present asignificant health hazard. However, ordinary precautions mustbe observed to protect personnel from contact with moltenBPA or excessive exposure to dusts or high concentra
12、tions ofvapor.5.1.2 Precautions must be observed to protect personnelfrom excessive inhalation of vapors and dust.5.2 Fire:5.2.1 BPA in both the solid and liquid form is combustibleand introduces a potential fire hazard when it is stored,handled, or used.5.2.2 BPA vapors or dust can form explosive m
13、ixtures withair.5.2.3 Dry chemicals, carbon dioxide, foam, and water canall be used in fighting fires involving BPA.1This practice is under the jurisdiction of ASTM Committee D16 on AromaticHydrocarbons and Related Chemicals and is the direct responsibility of Subcom-mittee D16.08 on Handling and Sa
14、mpling Aromatic and Cyclic Hydrocarbons.Current edition approved July 1, 2005. Published July 2005. Originally approvedin 1983. Last previous edition approved in 1999 as D 4297 99.2Available from U.S. Government Printing Office Superintendent of Documents,732 N. Capitol St., NW, Mail Stop: SDE, Wash
15、ington, DC 20401.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.6. Protective Equipment6.1 Employees who work with BPA should be well trainedand should maintain safe
16、working conditions. They should berequired to read an appropriate MSDS for BPA in its entiretyand consult appropriate, local, safety personnel if they haveany questions or concerns. Persons handling moltenbisphenol-A need to exercise particular care.7. First Aid7.1 Consult an appropriate MSDS for BP
17、A with regards tofirst aid measures that should be taken. In particular, extremecare must be observed handling molten BPA as it can causesevere thermal burns.8. Safety Precautions8.1 Exercise care to prevent spills and leaks. If they dooccur, only properly protected personnel should remain in thecon
18、taminated area in accordance with the instructions in anappropriate MSDS. All spill-related activities should complywith applicable EPA, OSHA, and local regulations and laws.8.2 Because of fire and dust explosion hazards, do notpermit open flames in the vicinity of tank carriers, othershipping conta
19、iners, or storage tanks. Provide all electricalfixtures with vapor-proof globes and explosion-proof safetydevices. Ground tank carriers by an approved method. Prohibitsmoking. All pneumatic conveying should be done withnitrogen or other inert gas.8.3 Any person sampling or handling these products sh
20、ouldhave consulted an appropriate MSDS for specific first aidinstructions and equipment to have available for use in theevent of personal contact or exposure.8.4 Conduct sampling and handling operations in accor-dance with the instructions in an appropriate MSDS.9. Unloading Hopper Cars or Hopper Tr
21、ucks9.1 Observe all safety precautions as outlined in Section 8and in an appropriate MSDS. Always follow shippers instruc-tions for unloading, and read and observe all caution markingson both sides of the hopper or dome.9.2 Opening of the hopper car dome cover and attachmentof delivery lines should
22、all be done by accepted safetyprocedures.10. Sampling Solid Bisphenol A10.1 Bulk QuantitiesTake a representative sample, pref-erably from a falling BPA stream, using a straight-pathsampler. Adjust sampler feed rate, slot width, cutter speed, andfrequency to collect12-lb (227-g) of sample per 10 000
23、lb(4540 kg) of BPA.10.2 Bags (50 lb (22.7 kg):10.2.1 Using a small thief, 8 to 12 in. (203 to 305 mm),remove about14 lb (113 g) of sample from 1 bag out of every40 bags (2000 lb) (907 kg) of BPA. Take the sample from thefilling ear or, if necessary, by opening one corner of the bag.Place each sample
24、 in a plastic bag. Tightly secure the samplebag to minimize absorption of moisture. Label with properidentification and in accordance with OSHA Regulations, orother appropriate local regulations, or both.10.2.2 Make a composite blend from the individual samplesand mix thoroughly before analyzing.10.
25、2.3 Aluminum, polyethylene, polypropylene, or stainlesssteel-type scoops are recommended for taking samples ofproduct from the bags selected for sampling. Avoid contami-nating the sample with iron or rust.10.3 Extreme care and good judgment are necessary toensure that the samples truly represent the
26、 product.10.4 Remove approximately 75 g portions from each of thebags selected from a sample unit and place in a plastic bag.Seal the opened bags with suitable tape.10.5 Label the sample container in accordance with OSHAor other appropriate local regulations, or both, to indicate, as aminimum, the d
27、ate and time, source of the sample, type ofmaterial, purpose of the sample, and the name of the sample.10.6 Large Bulk Sacks (1100 to 2200 lb (500 to 1000 kg):10.6.1 Use a sample thief to collect12-lb (227-g) samplesfor each 4000 to 5000 lb (1814 to 2268 kg) of material.10.6.2 Place samples in plast
28、ic bags. Tightly secure thesample bags to minimize absorption of moisture. Labelsamples in accordance with 10.5.11. Keywords11.1 bisphenol A; BPA; handling; samplingTABLE 1 Typical Physical Properties Product Bisphenol AMelting Point, CBoiling Point, C(10.5 mm Hg)Solid FormsFlash Point,FSpecific Gra
29、vity,25C154157 240 prills, flakes, crystals, powder 4.5 1.20 (solid)D4297052SUMMARY OF CHANGESCommittee D16 has identified the location of selected changes to this standard since the last issue(D 4297 99) that may impact the use of this standard.(1) Sections 1-8: Revised to remove specific safety, h
30、andling,and first aid instructions, emphasizing consultation with, andadherence to, all aspects of an appropriate manufacturersMSDS as well as any other applicable instructions and regu-lations.(2) Removed reference to CHEMTREC in Section 5.This standard is subject to revision at any time by the res
31、ponsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive caref
32、ul consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International
33、, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D4297053
