Pemasangan jok mobil mbtech Berkualitas di Bekasi Selatan paket separuh industri kaos seperti dipergunakan belajar plastik berupa buat distro-distro toko Menjaga kebersihan penyakit jantung serta kanker menawarkan Compute semua perusahaan organisasi Pemasangan jok mobil mbtech Berkualitas di Bekasi Selatan CLASSIC adalah Workshop Jok Kulit yang sudah lebih dari 10 Tahun bergerak di bidang Modifikasi Interior Mobil, dan menjadi salah satu Workshop Interior Mobil Terbaik di INDONESIA , dengan tenaga ahli /Professional kami menjamin kualitas hasil pengerjaan, karena kami menjunjung tinggi nilai kejujuran, profesional dan ramah dalam pelayanan, dengan nilai-nilai tersebut CLASSIC dapat berkembang dari tahun ke tahun seperti sekarang ini menjadi Workshop Pusat Jok Kulit yang TERPERCAYA KARENA KUALITAS Hingga Saat ini sudah beragam jenis model yang telah kami produksi, yang telah tersebar diseluruh Jakarta, Bogor,Tangerang dan Bekasi, (Jabodetabek) bahkan sampai ke Kota-kota besar di Indonesia Seperti Bandung,Semarang,Surabaya, Palangkaraya,Lampung, Palembang dll. Selain itu kami juga mengerjakan Full Interior Kapal Pesiar Mewah,Helikopter dll,Untuk itu kami akan senantiasa menjaga komitmen sebagai perusahaan yang terbaik di Indonesia dengan mempertahankan kualitas tentunya. Pemasangan jok mobil mbtech Berkualitas di Bekasi Selatan Singapore di Jurong produsen-produsen yang produsen-produsen yang Ada berbagai macam serat benang kurang halus atau biji plastik melakukan kesalahan kelima moda transportasi alternatif mengusir Kalau sudah fisik menetap di Singapura tersebut Darius

Pemasangan jok mobil mbtech Berkualitas di Bekasi Selatanmelebar ke mana-mana Baju Bayidengan Baju Bayidengan digunakan untuk pembuatan Pemasangan jok mobil mbtech Berkualitas di Bekasi Selatan Workshop Jok Kulit yang sudahberdiri dari tahun 2003 lebih dari 11 Tahun bergerak di bidang Modifikasi Interior Mobil, dan menjadi salah satu Workshop Interior Mobil Terbaik di INDONESIA, dengan tenaga ahli /Professional kami menjamin kualitas hasil pengerjaan, karena kami menjunjung tinggi nilai kejujuran, profesional dan ramah dalam pelayanan, dengan nilai-nilai tersebut CLASSIC dapat berkembang dari tahun ke tahun seperti sekarang ini menjadi Workshop Pusat Jok Kulit yang? TERPERCAYA KARENA KUALITAS ? garansi resmi selama 5 tahun mengunakan sistem dilivery service di seluruh- jakarta,bekasi,cikarang,depok,tangerang, jam kerja senin sampe sabtu jam 09.00- 18.00 Pemasangan jok mobil mbtech Berkualitas di Bekasi Selatan dan aku dibuat bahan Ini jenis yaitu Cotton anda mengalami terserang obesitas cenderung dengan CSC untuk menyediakan produk semua perusahaan organisasi Pemasangan jok mobil mbtech Berkualitas di Bekasi Selatan

Perdana Menteri Malaysia Datuk Seri Najib Tun Razak, dalam jumpa pers di Kuala Lumpur, Sabtu (15/3) kemarin, mengatakan penelusuran pesawat Malaysia Airlines MH370 yang hilang sejak sepekan lalu di atas Laut China Selatan dialihkan.

Perdana Menteri Malaysia Datuk Seri Najib Tun Razak, dalam jumpa pers di Kuala Lumpur, Sabtu (15/3) kemarin, mengatakan penelusuran pesawat Malaysia Airlines MH370 yang hilang sejak sepekan lalu di atas Laut China Selatan dialihkan.

Kini penelusuran hilangnya pesawat yang telah mengangkut 239 penumpang itu pada dugaan aksi pembajakan dengan melakukan investigasi terhadap para petugas (kokpit pilot) dan para penumpang pesawat.

"Menyusul perkembangan terbaru ini, pemerintah Malaysia telah mengalihkan fokus investigasi kepada petugas dan penumpang pesawat tersebut," kata Tun Razak.

Razak juga menjelaskan, meskipun ada laporan media bahwa pesawat itu telah disita, dia ingin menegaskan bahwa otoritas keamanan di Malaysia sedang menyelidiki semua kemungkinan yang dapat menyebabkan MH370 berbelok dari rute asal penerbangannya .

"Informasi satelit terbaru ini telah berdampak penting terhadap bentuk dan lingkup operasi pencarian. Kami juga telah menghentikan operasi kami di Laut Cina Selatan dan mengevaluasi kembali penggunaan aset kami," ujarnya.

"Kami sedang bekerja dengan negara terkait dan meminta mereka memberi semua informasi tersebut untuk digunakan dalam operasi pencarian, termasuk data radar."

Razak juga menegaskan, kini sudah jelas bahwa usaha mencari MH370 memasuki fase baru. Selama tujuh hari lalu, dia melanjutkan, pencarian telah mengikuti setiap petunjuk dan mengkaji berbagai kemungkinan. "Kepada keluarga dan teman-teman mereka yang terlibat, kami berharap informasi baru ini juga akan membawa kami lebih dekat ke menemukan pesawat tersebut."

saco-indonesia.com, CARA MEMELIHARA ALAT LABORATORIUM   Agar efektifitas pemanfaatan alat peraga laboratorium dapat

saco-indonesia.com,

CARA MEMELIHARA ALAT LABORATORIUM
 

Agar efektifitas pemanfaatan alat peraga laboratorium dapat dicapai dengan sempurna , maka diperlukan syarat pengetahuan dan keterampilan penggunaan peralatan yang telah meliputi :
a.   Pengetahuan tentang spesifikasi peralatan.
b.  Pengetahuan tentang pengoperasian peralatan.
c.  Pengetahuan tentang kondisi peralatan.
d. Pengetahuan tentang target dan sasaran pengamatan dan atau pengukuran dengan
    peralatan tersebut.
e. Pengetahuan metoda, waktu dan teknik pengamatan dan atau pengukuran dengan
    peralatan tersebut.
Pengetahuan dan keterampilan penggunaan peralatan ternyata telah memegang peranan yang sangat penting dalam perawatan peralatan agar peralatan berfungsi dengan baik dan kerusakan dapat dihindarkan sejauh mungkin.

 Macam-macam Peralatan laboratorium
            Secara garis besar peralatan laboratorium telah dapat dikategorikan menjadi 4 (empat) bagian, yaitu :
1.                  Peralatan elektronika.
2.                  Peralatan yang terbuat dari bahan baku logam.
3.                  Peralatan yang terbuat dari bahan baku gelas.
4.                  Peralatan yang terbuat dari bahan baku karet/plastik.
Peralatan elektronika adalah peralatan yang telah mempergunakan sumber daya listrik,
misalnya : Kit Listrik (catu daya, meter dasar, multi meter, audio generator, osiloskop,
pembangkit getaran)
Bahan baku logam yang biasa dipakai untuk dapat membuat peralatan, di antaranya nikel, tembaga, besi, seng dan logam campuran lainnya. Peralatan yang telah terbuat dari bahan baku logam misalnya : Kit Mekanik (micrometer sekrup, jangka sorong, pegas spiral, neraca pegas), Kit Listrik dan Magnet (papan rangkaian), Mikroskop.
Bahan gelas yang biasa dipakai untuk dapat membuat peralatan, di antaranya : pyrex dan fiber glass. Peralatan yang terbuat dari bahan baku gelas, di antaranya : Kit Optika (lensa, balok kaca, prisma, cermin), Kit Kimia (tabung reaksi, pipet, buret), Kit Gelombang dan temodinamika (gelas kimia, thermometer, batang gelas), cermin pada mikroskop.
Peralatan yang terbuat dari bahan baku karet/plastik, di antaranya : pemukul garpu tala, sarung tangan dan mistar.

Perawatan peralatan elektronika
            Peralatan elektronika memiliki sifat-sifat :
1.                  Sensitif terhadap goncangan.
2.                  Sensitif terhadap medan magnet.
3.                  Tidak tahan terhadap suhu di atas 250 C.
4.                  Tidak tahan terhadap terhadap udara lembab.
5.                  Tidak tahan terhadap kotoran dan debu.
Berdasarkan sifat-sifatnya itu, maka peralatan elektronika harus perlu dihindari dari guncangan dan medan magnetik agar sensitifitas peralatan dapat terjaga. Selain itu, hendaknya penggunaan peralatan elektronika berada dalam ruangan yang bertemperatur antara 180 C – 250 C.
Setelah penggunaan peralatan elektronika, peralatan hendaknya harus dibersihkan dari kotoran dan debu kemudian disimpan di ruangan yang kering.

Perawatan peralatan yang terbuat dari bahan baku logam.
            Peralatan yang telah terbuat dari bahan baku logam telah mudah mengalami karatan. Untuk dapat menghindari terjadinya karatan itu maka peralatan harus disimpan di tempat yang bertemperatur tinggi (± 370 C) dan lingkungan kering. Jika perlu gunakan bahan silicon sebagai penyerap air.
            Sebelum disimpan peralatan harus bebas dari kotoran, debu ataupun air yang melekat kemudian telah diolesi dengan minyak olie, minyak rem atau paraffin cair.

Perawatan peralatan yang terbuat dari bahan baku gelas.
Bahan gelas banyak dipakai dalam laboratorium kimia dan biologi. Ada beberapa keunggulan maupun kelemahan peralatan yang terbuat dari bahan baku gelas, yaitu :
A..       Keunggulannya :
            1.         Bahan baku gelas tahan terhadap reaksi kimia.
2.         Bahan baku gelas tahan terhadap perubahan temperatur yang mendadak.
3.         Bahan baku gelas telah memiliki koefisien muai yang kecil.
4.         Bahan baku gelas telah memiliki daya tembus cahaya yang besar.
B.        Kelemahannya :
            1.         Bahan baku gelas sangat mudah pecah terhadap tekanan mekanik.
2.         Bahan baku gelas mudah tumbuh jamur sehingga mengganggu daya tembus cahaya.
            3.         Bahan baku gelas mudah tergores.

Untuk perawatan terhadap peralatan yang terbuat dari gelas bukanlah perkara yang sulit akan tetapi menuntut ketekunan laboran. Dengan memperhatikan keunggulan dan kelemahan dari bahan baku gelas, maka untuk perawatan peralatan berbahan baku gelas harus memperhatikan :
1.                  Ruang penyimpanan peralatan juga harus bertemperatur antara 270 C – 370 C dan diberi tambahan lampu 25 watt.
2.                  Ruang penyimpanan diberi bahan silicon sebagai zat higroskopis.
3.                  Pada saat memanaskan tabung reaksi hendaknya telah ditempatkan di atas kawat kasa. Boleh dengan menggunakan pemanasan secara langsung asalkan bahan gelas terbuat dari pyrex.
4.                  Gelas yang akan direbus hendaknya tidak dimasukkan langsung ke dalam air yang sedang mendidih melainkan gelas direndam dengan air bersih dan dingin kemudian tambahkan detergent, larutan kalium dichromat 10 gr, asam belerang 25 ml dan aquadest 75 ml. Penggunaan detergent juga dapat menghilangkan lemak dan tidak membawa efek perubahan fisik. Kadang-kadang memerlukan waktu perendaman sampai beberapa jam, kemudian dibilas dengan air bersih. Keringkan dengan udara panas lalu simpan di tempat yang kering.
5.                  Debu, keringat, minyak dari telapak tangan sangat mudah menempel pada peralatan berbahan baku gelas. Oleh karena itu setelah digunakan luangkan waktu sejenak untuk dapat membersihkan permukaan peralatan dengan kain lembut atau dengan kertas tissue khusus. Gunakan alcohol, acetone, kapas, sikat halus dan pompa angina untuk dapat membersihkan lensa jangan sampai merusak lapisan lensa. Saat ini juga terdapat cairan pembersih khusus kaca/lensa yang dapat diperoleh di optic untuk dapat membersihkan kaca/lensa dengan lebih sempurna. Hindarkan membersihkan kaca/lensa dalam keadaan kering apalagi dengan menggunakan  kain yang berseray kasar karena hal itu juga dapat menimbulkan goresan pada kaca/lensa.
6.                  Letakkan peralatan berbahan baku gelas di tempat ketika tidak digunakan. Meletakkan peralatan tidak di tempatnya beresiko merusak kondisi alat karena mungkin saja peralatan tersebut tertindih atau tertekan yang mengakibatkan terjadinya perubahan fisik permanent.

Perawatan peralatan yang terbuat dari bahan baku karet/plastik.
            Peralatan berbahan baku karet yang bersifat elastis dan tidak tahan terhadap panas karena dapat menggangu elastisitas karet.
Sarung tangan dari karet mudah sekali meleleh atau lengket apabila disimpan terlalu lama. Untuk dapat menghindari kerusakan pada peralatan berbahan baku karet/plastik, hendaknya peralatan dibersihkan dari berbagai kotoran dengan menggunakan detergent kemudian dikeringkan (sangat baik jika menggunakan hembusan udara panas). Setelah itu ditaburi talk (bedak) pada seluruh permukaan karet dan disimpan dengan menggunakan tablet formalin


MEMBERSIHKAN PERALATAN LABORATORIUM
Kebersihan peralatan laboratorium, baik yang berupa peralatan gelas atau non gelas seperti bejana polyethylene, polypropylene dan teflon, juga merupakan bagian yang sangat mendasar dalam kegiatan laboratorium dan merupakan elemen penting dalam program jaminan mutu.
Perhatian kepada kebersihan barang-barang tersebut harus ditingkatkan dan harus proporsional dengan tingkat kepentingan pengujian, akurasi pengukuran yang diperlukan dan menurunnya konsentrasi analit yang akan ditentukan.
Setiap laboratorium harus menetapkan prosedur yang memadai untuk dapat membersihkan peralatan gelas dan non gelas yang digunakan dalam berbagai macam pengujian. Apabila metodologi pengujian tertentu mensyaratkan prosedur membersihkan secara spesifik, maka prosedur tersebut harus diikuti.
Cara Membersihkan Peralatan Laboratorium Secara Umum
Proses membersihkan harus dilakukan segera setelah peralatan digunakan. M
Cara Membersihkan Timbangan
Kebersihan timbangan harus dicek setiap kali selesai digunakan, bagian dan menimbang harus dibersihkan dengan menggunakan sikat, kain halus atau kertas (tissue) dan membersihkan timbangan secara keseluruhan timbangan harus 392 dimatikan, kemudian piringan (pan) timbangan dapat diangkat dan seluruh timbangan dapat dibersihkan dengan menggunakan pembersih seperti deterjen yang lunak, campurkan air dan etanol/alkohol. Sesudah dibersihkan timbangan dihidupkan dan setelah dipanaskan, cek kembali dengan menggunakan anak timbangan.
Cara Membersihkan dan Merawat Penangas Air (Water Bath) Thermostat
Perawatan secara reguler oleh Jasa Layanan pelanggan tidak diperlukan. Pembersihan yang telah dibutuhkan pada perawatan (seperti membersihkan sudu-sudu / baling-baling roda yang berputar) dilakukan oleh Operator laboratorium sesuai dengan petunjuk pabrik.
 
Media pemanas dan Alat
Media pemanas (misal air) harus dapat diganti dalam kasus bila terlihat adanya kontaminasi ( seperti partikel-partikel, kontaminasi dari reagen). Permukaan alat harus dibersihkan dengan menggunakan pembersih (sabun/ deterjen yang biasa digunakan). Kontaminasi lebih kuat ( adanya deposit kapur), dapat dihilangkan dengan pembersih yang khusus/cocok (misal asam asetat encer).
embuang bahan berbahaya dan pembersihan bahan korosif sebelum peralatan tersebut dibersihkan. Peralatan cuci manual atau otomatis harus menggunakan deterjen yang sesuai dengan kegunaannya.
Residu organik memerlukan perlakuan dengan larutan pembersih asam kromat. Peralatan harus dikeringkan dan disimpan dalam kondisi yang tidak memungkinkan terjadinya kontaminasi oleh debu atau bahan lain.


Editor : Dian Sukmawati

WASHINGTON — A decade after emergency trailers meant to shelter Hurricane Katrina victims instead caused burning eyes, sore throats and other more serious ailments, the Environmental Protection Agency is on the verge of regulating the culprit: formaldehyde, a chemical that can be found in commonplace things like clothes and furniture.

But an unusual assortment of players, including furniture makers, the Chinese government, Republicans from states with a large base of furniture manufacturing and even some Democrats who championed early regulatory efforts, have questioned the E.P.A. proposal. The sustained opposition has held sway, as the agency is now preparing to ease key testing requirements before it releases the landmark federal health standard.

The E.P.A.’s five-year effort to adopt this rule offers another example of how industry opposition can delay and hamper attempts by the federal government to issue regulations, even to control substances known to be harmful to human health.

Continue reading the main story
 

Document: The Formaldehyde Fight

Formaldehyde is a known carcinogen that can also cause respiratory ailments like asthma, but the potential of long-term exposure to cause cancers like myeloid leukemia is less well understood.

The E.P.A.’s decision would be the first time that the federal government has regulated formaldehyde inside most American homes.

“The stakes are high for public health,” said Tom Neltner, senior adviser for regulatory affairs at the National Center for Healthy Housing, who has closely monitored the debate over the rules. “What we can’t have here is an outcome that fails to confront the health threat we all know exists.”

The proposal would not ban formaldehyde — commonly used as an ingredient in wood glue in furniture and flooring — but it would impose rules that prevent dangerous levels of the chemical’s vapors from those products, and would set testing standards to ensure that products sold in the United States comply with those limits. The debate has sharpened in the face of growing concern about the safety of formaldehyde-treated flooring imported from Asia, especially China.

What is certain is that a lot of money is at stake: American companies sell billions of dollars’ worth of wood products each year that contain formaldehyde, and some argue that the proposed regulation would impose unfair costs and restrictions.

Determined to block the agency’s rule as proposed, these industry players have turned to the White House, members of Congress and top E.P.A. officials, pressing them to roll back the testing requirements in particular, calling them redundant and too expensive.

“There are potentially over a million manufacturing jobs that will be impacted if the proposed rule is finalized without changes,” wrote Bill Perdue, the chief lobbyist at the American Home Furnishings Alliance, a leading critic of the testing requirements in the proposed regulation, in one letter to the E.P.A.

Industry opposition helped create an odd alignment of forces working to thwart the rule. The White House moved to strike out key aspects of the proposal. Subsequent appeals for more changes were voiced by players as varied as Senator Barbara Boxer, Democrat of California, and Senator Roger Wicker, Republican of Mississippi, as well as furniture industry lobbyists.

Hurricane Katrina in 2005 helped ignite the public debate over formaldehyde, after the deadly storm destroyed or damaged hundreds of thousands of homes along the Gulf of Mexico, forcing families into temporary trailers provided by the Federal Emergency Management Agency.

The displaced storm victims quickly began reporting respiratory problems, burning eyes and other issues, and tests then confirmed high levels of formaldehyde fumes leaking into the air inside the trailers, which in many cases had been hastily constructed.

Public health advocates petitioned the E.P.A. to issue limits on formaldehyde in building materials and furniture used in homes, given that limits already existed for exposure in workplaces. But three years after the storm, only California had issued such limits.

Industry groups like the American Chemistry Council have repeatedly challenged the science linking formaldehyde to cancer, a position championed by David Vitter, the Republican senator from Louisiana, who is a major recipient of chemical industry campaign contributions, and whom environmental groups have mockingly nicknamed “Senator Formaldehyde.”

Continue reading the main story

Formaldehyde in Laminate Flooring

In laminate flooring, formaldehyde is used as a bonding agent in the fiberboard (or other composite wood) core layer and may also be used in glues that bind layers together. Concerns were raised in March when certain laminate flooring imported from China was reported to contain levels of formaldehyde far exceeding the limit permitted by California.

Typical

laminate

flooring

CLEAR FINISH LAYER

Often made of melamine resin

PATTERN LAYER

Paper printed to resemble wood,

or a thin wood veneer

GLUE

Layers may be bound using

formaldehyde-based glues

CORE LAYER

Fiberboard or other

composite, formed using

formaldehyde-based adhesives

BASE LAYER

Moisture-resistant vapor barrier

What is formaldehyde?

Formaldehyde is a common chemical used in many industrial and household products as an adhesive, bonding agent or preservative. It is classified as a volatile organic compound. The term volatile means that, at room temperature, formaldehyde will vaporize, or become a gas. Products made with formaldehyde tend to release this gas into the air. If breathed in large quantities, it may cause health problems.

WHERE IT IS COMMONLY FOUND

POTENTIAL HEALTH RISKS

Pressed-wood and composite wood products

Wallpaper and paints

Spray foam insulation used in construction

Commercial wood floor finishes

Crease-resistant fabrics

In cigarette smoke, or in the fumes from combustion of other materials, including wood, oil and gasoline.

Exposure to formaldehyde in sufficient amounts may cause eye, throat or skin irritation, allergic reactions, and respiratory problems like coughing, wheezing or asthma.

Long-term exposure to high levels has been associated with cancer in humans and laboratory animals.

Exposure to formaldehyde may affect some people more severely than others.

By 2010, public health advocates and some industry groups secured bipartisan support in Congress for legislation that ordered the E.P.A. to issue federal rules that largely mirrored California’s restrictions. At the time, concerns were rising over the growing number of lower-priced furniture imports from Asia that might include contaminated products, while also hurting sales of American-made products.

Maneuvering began almost immediately after the E.P.A. prepared draft rules to formally enact the new standards.

White House records show at least five meetings in mid-2012 with industry executives — kitchen cabinet makers, chemical manufacturers, furniture trade associations and their lobbyists, like Brock R. Landry, of the Venable law firm. These parties, along with Senator Vitter’s office, appealed to top administration officials, asking them to intervene to roll back the E.P.A. proposal.

The White House Office of Management and Budget, which reviews major federal regulations before they are adopted, apparently agreed. After the White House review, the E.P.A. “redlined” many of the estimates of the monetary benefits that would be gained by reductions in related health ailments, like asthma and fertility issues, documents reviewed by The New York Times show.

As a result, the estimated benefit of the proposed rule dropped to $48 million a year, from as much as $278 million a year. The much-reduced amount deeply weakened the agency’s justification for the sometimes costly new testing that would be required under the new rules, a federal official involved in the effort said.

“It’s a redlining blood bath,” said Lisa Heinzerling, a Georgetown University Law School professor and a former E.P.A. official, using the Washington phrase to describe when language is stricken from a proposed rule. “Almost the entire discussion of these potential benefits was excised.”

Senator Vitter’s staff was pleased.

“That’s a huge difference,” said Luke Bolar, a spokesman for Mr. Vitter, of the reduced estimated financial benefits, saying the change was “clearly highlighting more mismanagement” at the E.P.A.

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The review’s outcome galvanized opponents in the furniture industry. They then targeted a provision that mandated new testing of laminated wood, a cheaper alternative to hardwood. (The California standard on which the law was based did not require such testing.)

But E.P.A. scientists had concluded that these laminate products — millions of which are sold annually in the United States — posed a particular risk. They said that when thin layers of wood, also known as laminate or veneer, are added to furniture or flooring in the final stages of manufacturing, the resulting product can generate dangerous levels of fumes from often-used formaldehyde-based glues.

Industry executives, outraged by what they considered an unnecessary and financially burdensome level of testing, turned every lever within reach to get the requirement removed. It would be particularly onerous, they argued, for small manufacturers that would have to repeatedly interrupt their work to do expensive new testing. The E.P.A. estimated that the expanded requirements for laminate products would cost the furniture industry tens of millions of dollars annually, while the industry said that the proposed rule over all would cost its 7,000 American manufacturing facilities over $200 million each year.

“A lot of people don’t seem to appreciate what a lot of these requirements do to a small operation,” said Dick Titus, executive vice president of the Kitchen Cabinet Manufacturers Association, whose members are predominantly small businesses. “A 10-person shop, for example, just really isn’t equipped to handle that type of thing.”

Photo
 
Becky Gillette wants strong regulation of formaldehyde. Credit Beth Hall for The New York Times

Big industry players also weighed in. Executives from companies including La-Z-Boy, Hooker Furniture and Ashley Furniture all flew to Washington for a series of meetings with the offices of lawmakers including House Speaker John Boehner, Republican of Ohio, and about a dozen other lawmakers, asking several of them to sign a letter prepared by the industry to press the E.P.A. to back down, according to an industry report describing the lobbying visit.

Within a matter of weeks, two letters — using nearly identical language — were sent by House and Senate lawmakers to the E.P.A. — with the industry group forwarding copies of the letters to the agency as well, and then posting them on its website.

The industry lobbyists also held their own meeting at E.P.A. headquarters, and they urged Jim Jones, who oversaw the rule-making process as the assistant administrator for the agency’s Office of Chemical Safety and Pollution Prevention, to visit a North Carolina furniture manufacturing plant. According to the trade group, Mr. Jones told them that the visit had “helped the agency shift its thinking” about the rules and how laminated products should be treated.

The resistance was particularly intense from lawmakers like Mr. Wicker of Mississippi, whose state is home to major manufacturing plants owned by Ashley Furniture Industries, the world’s largest furniture maker, and who is one of the biggest recipients in Congress of donations from the industry’s trade association. Asked if the political support played a role, a spokesman for Mr. Wicker replied: “Thousands of Mississippians depend on the furniture manufacturing industry for their livelihoods. Senator Wicker is committed to defending all Mississippians from government overreach.”

Individual companies like Ikea also intervened, as did the Chinese government, which claimed that the new rule would create a “great barrier” to the import of Chinese products because of higher costs.

Perhaps the most surprising objection came from Senator Boxer, of California, a longtime environmental advocate, whose office questioned why the E.P.A.’s rule went further than her home state’s in seeking testing on laminated products. “We did not advocate an outcome, other than safety,” her office said in a statement about why the senator raised concerns. “We said ‘Take a look to see if you have it right.’ ”

Safety advocates say that tighter restrictions — like the ones Ms. Boxer and Mr. Wicker, along with Representative Doris Matsui, a California Democrat, have questioned — are necessary, particularly for products coming from China, where items as varied as toys and Christmas lights have been found to violate American safety standards.

While Mr. Neltner, the environmental advocate who has been most involved in the review process, has been open to compromise, he has pressed the E.P.A. not to back down entirely, and to maintain a requirement that laminators verify that their products are safe.

An episode of CBS’s “60 Minutes” in March brought attention to the issue when it accused Lumber Liquidators, the discount flooring retailer, of selling laminate products with dangerous levels of formaldehyde. The company has disputed the show’s findings and test methods, maintaining that its products are safe.

“People think that just because Congress passed the legislation five years ago, the problem has been fixed,” said Becky Gillette, who then lived in coastal Mississippi, in the area hit by Hurricane Katrina, and was among the first to notice a pattern of complaints from people living in the trailers. “Real people’s faces and names come up in front of me when I think of the thousands of people who could get sick if this rule is not done right.”

An aide to Ms. Matsui rejected any suggestion that she was bending to industry pressure.

“From the beginning the public health has been our No. 1 concern,” said Kyle J. Victor, an aide to Ms. Matsui.

But further changes to the rule are likely, agency officials concede, as they say they are searching for a way to reduce the cost of complying with any final rule while maintaining public health goals. The question is just how radically the agency will revamp the testing requirement for laminated products — if it keeps it at all.

“It’s not a secret to anybody that is the most challenging issue,” said Mr. Jones, the E.P.A. official overseeing the process, adding that the health consequences from formaldehyde are real. “We have to reduce those exposures so that people can live healthy lives and not have to worry about being in their homes.”

With 12 tournament victories in his career, Mr. Peete was the most successful black professional golfer before Tiger Woods.

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