|
US$139.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 27655-2011: Method of evaluating wood preservatives by field tests with stakes
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 27655-2011 | English | 139 |
Add to Cart
|
3 days [Need to translate]
|
Method of evaluating wood preservatives by field tests with stakes
| Valid |
GB/T 27655-2011
|
PDF similar to GB/T 27655-2011
Basic data | Standard ID | GB/T 27655-2011 (GB/T27655-2011) | | Description (Translated English) | Method of evaluating wood preservatives by field tests with stakes | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | B71 | | Classification of International Standard | 79-010 | | Word Count Estimation | 6,652 | | Date of Issue | 2011-12-30 | | Date of Implementation | 2012-04-01 | | Quoted Standard | GB/T 13942.2-2009; GB/T 14019; GB/T 27654 | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 22 of 2011 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the sample timber according to the conditions in the wild underground worm infestation by bacteria index to determine the integrity of a wood preservative treated wood products durability approach. This standard applies to evaluate the soil in contact with the outdoor wood products treated wood preservative against rot and termite decay properties. | GB/T 27655-2011: Method of evaluating wood preservatives by field tests with stakes---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.
Method of evaluating wood preservatives by field tests with stakes
ICS 79-010
B71
National Standards of People's Republic of China
Wood preservatives Performance Evaluation
Test Method field to bury
Issued on. 2011-12-30
2012-04-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
The standard decay and termites grade wood preservative value to the American Association of AWPA standard E7-07 "wood preservatives Performance Review
Buried field test method "in the estimation method.
This standard was proposed by the State Forestry Administration.
The standard by the China Standardization Technical Committee timber.
This standard was drafted. China Forestry Science Institute of Wood Industry.
The main drafters of this standard. Jiang Mingliang, Maxing Xia.
Wood preservatives Performance Evaluation
Test Method field to bury
1 Scope
This standard specifies the determination of wood preservative-treated wood samples according to good index when conditions in the field buried by bacteria after wood against insects
The method can product durability.
This standard applies to the assessment of outdoor wood products treated with wood preservatives soil contact is anti-corruption and anti-termites performance.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard. However, according to research encourages the parties to the agreement
Study whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 13942.2-2009 natural durability of wood Field Test methods - Part 2. Test methods for natural durability Field
GB/T 14019 wood preservative term
GB/T 27654 Wood preservatives
3 Terms and Definitions
Terms and definitions GB/T 14019 apply to this standard established.
4 test material, anti-corrosion treatment and test site
4.1 test material
Alternatively pine, slash pine sapwood, test material size A. 25mm × 50mm × 500mm (length portrait orientation),
B. 20mm × 20mm × 450mm (length of the longitudinal direction) and C. 4mm (tangential) × 38mm (radial) × 250mm (longitudinal)
3 types. Test material should be healthy and free from defects, moderate growth rings of the same species tested material width, the deviation should not exceed 20%, density is roughly similar. The
Test timber species should be the correct Chinese name and Latin name, place of origin and a brief description of site conditions.
4.2 embalmed
Need to select a standard preservative such as ammonia (amine) soluble copper quaternary (ACQ) a formulation or copper, chromium and arsenic (CCA) for comparison tests, comparison
Preservatives technical indicators should be consistent with GB/T 27654 requirements. Compare preservatives and preservative tested each choose three to five concentrations,
Easy to get three to five drug loading should be based on the concentration of the test target drug load, depending on the spacing between adjacent multiples of two drug load was approximately 1.4, each
Root test material drug load deviation should not exceed 10% of the average drug loading. Each drug loading process at least 10 test materials. According to test materials for anti
Permeability preservatives determined embalmed method size A test material can be treated with preservatives vacuum pressure method of treating, size B
And test material embalmed C may employ a vacuum or without pressure processing method. Test material before preservative treatment should be individually numbered, dried, and
After renaming the embalmed, test material surface without liquid, it should be immediately weighed for calculating drug loading. For copper preservatives, anti-corrosion treatment Weighing
After, you should choose a suitable drying method such as natural drying, preservatives ensure adequate fixation. Before the test material placement, the moisture content should be below 18%.
There should be at least 10 test materials untreated as controls.
4.3 Prepare test site
Select a representative from the venue of tropical, subtropical and warm temperate climate zone. The test area shall indicate the location and climate zone.
To test site is flat, moderate soil moisture, without drought or waterlogging, soil layers thick, rich in humus.
Remote test site should be selected where appropriate pens, to avoid interference with the destruction of human and animal activity, to ensure long-term test.
|