GBZ20-2019 PDF English
US$110.00 · In stock · Download in 9 secondsGBZ20-2019: Diagnosis of occupational contact dermatitis Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedureStatus: Valid GBZ20: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GBZ 20-2019 | English | 110 |
Add to Cart
|
0-9 seconds. Auto-delivery
|
Diagnosis of occupational contact dermatitis
| Valid |
| GBZ 20-2002 | English | 319 |
Add to Cart
|
3 days
|
Diagnostic Criteria of Occupational Contact Dermatitis
| Obsolete |
Excerpted PDFs (Download full copy in 9 seconds upon purchase)PDF Preview: GBZ20-2019
GBZ 20-2019: Diagnosis of occupational contact dermatitis---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBZ20-2019
GBZ
NATIONAL OCCUPATIONAL HEALTH STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 13.100
C 60
Replacing GBZ 20-2002
Diagnosis of occupational contact dermatitis
ISSUED ON: JANUARY 30, 2019
IMPLEMENTED ON: JULY 01, 2019
Issued by: National Health Commission of the PRC
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative references ... 4
3 Diagnostic principles ... 4
4 Diagnosis ... 4
5 Treatment principles ... 5
6 Instructions for the correct use of this Standard ... 6
7 Common pathogenic substances of occupational contact dermatitis ... 6
Appendix A (Informative) Instructions for the correct use of this Standard ... 7
Appendix B (Informative) Common pathogenic substances of occupational
contact dermatitis ... 10
Diagnosis of occupational contact dermatitis
1 Scope
This Standard specifies the principles of diagnosis and treatment of
occupational contact dermatitis.
This Standard applies to the diagnosis and treatment of occupational contact
dermatitis.
2 Normative references
The following documents are indispensable for the application of this document.
For the dated references, only the editions with the dates indicated are
applicable to this document. For the undated references, the latest edition
(including all the amendments) are applicable to this document.
GBZ 18 Diagnosis of occupational skin diseases - General guideline
GB/T 16180 Standard for identify work ability - Gradation of disability caused
by work-related injuries and occupational diseases
3 Diagnostic principles
According to the clear history of occupational contact, skin lesion diseased
parts, clinical manifestations, and dynamic observation results, refer to the
working environment survey and the onset situations of the same type of work;
if necessary, combine with skin patch test for comprehensive analysis, to
eliminate contact dermatitis caused by non-occupational factors; and perform
the diagnosis.
4 Diagnosis
4.1 Occupational irritant contact dermatitis
Acute dermatitis presents erythema, edema, papules; or dense papules,
blisters, or bullae on the basis of edematous erythema. After blisters breaking,
it shows erosion, exudate, and scabbing. Self-conscious burning pain or itch.
Chronic changers present varying degrees of infiltration, thickening,
desquamation, or chap. It can be diagnosed if:
Seborrheic
dermatitis
A chronic skin
inflammation which
develops on the basis of
seborrhea.
It often distributes in parts
with many sebaceous
glands, such as the scalp,
face, chest, back,
armpits, etc.
The skin lesions are
slightly-yellowish mild
erythema, with greasy
scales and scabbing.
Occupational
photo-contact
dermatitis
Skin inflammation
reaction caused by
contact with
photosensitive
substances and exposure
to sunlight in occupational
activities.
It is confined to the light-
irradiated part or begins
at the contact position;
and then spreads to the
surrounding area; may
spread to the whole body.
Flushing, swelling with
burning, pricking, and
itching appear at the light-
irradiated parts. In severe
cases, on the above basis,
bullae, erosion, and
scabbing appear.
A.2 Occupational contact dermatitis currently lacks specific auxiliary
examination indicators. The diagnosis is mainly based on clinical data. When
the occupational history is clear; there is a close causal relationship between
occupational contact and the occurrence and development of skin lesions; and
contact dermatitis and other diseases caused by non-occupational factors can
be eliminated, diagnosis shall be performed.
A.3 When inquiring about occupational history and conducting on-site
investigations, attention shall be paid to the effect OF changes in contactant,
contact dose and contact mode, workplace environmental health (including
production facilities and layout, ventilation and exhaust, dust removal,
workshop temperature and humidity, etc.), occupational protection, personal
hygiene, individual specificity, and seasonal factors, etc. ON the occurrence
and development of this disease.
A.4 The skin patch test is currently one of the most important methods for
detecting sensitizers of allergic contact dermatitis. It is suitable for occupational
allergic contact dermatitis and not for occupational irritant contact dermatitis.
During the operation, attention shall be paid to the concentration of the patch
material. Appropriate excipients shall be selected. The results of the patch test
shall be correctly evaluated (see GBZ 18).
A.5 Occupational contact dermatitis is classified into irritant and allergic types.
During diagnosis, they shall be separated as much as possible, to facilitate the
identification of work ability. However, some pathogenic substances have both
irritating and sensitizing effects. When it is clinically difficult to distinguish or
both effects exist, it can be diagnosed as occupational contact dermatitis and
treated according to occupational allergic contact dermatitis.
A.6 If the occupational allergic contact dermatitis repeatedly occurs, has no
improvement in the long term so that work is affected, the job can be changed,
to get rid of the environment containing sensitizers.
Appendix B
(Informative)
Common pathogenic substances of occupational contact dermatitis
B.1 Irritating effect-based pathogenic substances
B.1.1 Inorganic primary irritants: acids such as sulfuric acid, nitric acid,
hydrochloric acid, hydrofluoric acid, chlorosulfonic acid, hypochlorous acid,
chromic acid, etc. Alkalis such as potassium hydroxide, sodium hydroxide,
ammonium hydroxide, sodium carbonate, etc. Certain metals and their salts
such as antimony and antimony salts, arsenic and arsenic salts, dichromate,
zinc chloride, gallium chloride, beryllium fluoride, etc.
B.1.2 Organic primary irritants: organic acids such as acetic acid, formic acid,
salicylic acid, phenol, etc. Organic alkalis such as ethylenediamine,
propylamine, butylamine, etc. Organic solvents such as turpentine, carbon
disulfide, etc.
B.1.3 Petroleum and its products, including asphalt, tar, various lubricating oils,
etc.
B.1.4 Organohalogen compounds, such as polychlorinated biphenyls,
chlorophenols, and chloronaphthalenes, which have special irritating effects.
B.1.5 Animals: pine caterpillars, mulberry caterpillars, rove beetles, bees, mites,
ticks, leeches, jellyfish, etc.
B.1.6 Plants: figs, Centipeda minima, lavender, mint, ivy, ailanthus, safflower
(saffron), etc.
B.1.7 Pesticides: insecticides (dichlorvos, trichlorfon, isocarbophos,
methamidophos, dimehypo, benzofuranone, etc.), acaricides, fungicides, and
herbicides (paraquat), etc.
B.1.8 Other: glass fiber, asbestos, soap, synthetic detergent, flux, depilatory
agent, disinfectant, hair dye, etc.
B.2 Allergic reaction-based pathogenic substances
B.2.1 Dyes (pigments) and their intermediates: dark reddish purple, Lithol Red,
basic red, disperse blue 106, disperse blue 124, naphthylamine yellow,
fluorescent dyes, dyes in modern beauty products, p-phenylenediamine, m-
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
Tips & Frequently Asked QuestionsQuestion 1: How long will the true-PDF of English version of GBZ20-2019 be delivered?Answer: The full copy PDF of English version of GBZ20-2019 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice. Question 2: Can I share the purchased PDF of GBZ20-2019_English with my colleagues?Answer: Yes. The purchased PDF of GBZ20-2019_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. www.ChineseStandard.us -- GBZ20-2019 -- Click this link and select your country/currency to pay, the exact amount in your currency will be printed on the invoice. Full PDF will also be downloaded/emailed in 9 seconds. Question 5: Should I purchase the latest version GBZ20-2019?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GBZ20-2019 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. How to buy and download a true PDF of English version of GBZ20-2019?A step-by-step guide to download PDF of GBZ20-2019_EnglishStep 1: Visit website https://www.ChineseStandard.net (Pay in USD), or https://www.ChineseStandard.us (Pay in any currencies such as Euro, KRW, JPY, AUD).
Step 2: Search keyword "GBZ20-2019".
Step 3: Click "Add to Cart". If multiple PDFs are required, repeat steps 2 and 3 to add up to 12 PDFs to cart.
Step 4: Select payment option (Via payment agents Stripe or PayPal).
Step 5: Customize Tax Invoice -- Fill up your email etc.
Step 6: Click "Checkout".
Step 7: Make payment by credit card, PayPal, Google Pay etc. After the payment is completed and in 9 seconds, you will receive 2 emails attached with the purchased PDFs and PDF-invoice, respectively.
Step 8: Optional -- Go to download PDF.
Step 9: Optional -- Click Open/Download PDF to download PDFs and invoice.
See screenshots for above steps: Steps 1~3 Steps 4~6 Step 7 Step 8 Step 9 |